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this is information on a product in full production. march 2013 docid2143 rev 31 1/57 57 l78xx, l78xxc, l78xxab, l78xxac positive voltage regulator ics datasheet - production data features ? output current up to 1.5 a ? output voltages of 5; 6; 8; 8.5; 9; 12; 15; 18; 24 v ? thermal overload protection ? short circuit protection ? output transition soa protection ? 2 % output voltage tolerance (a version) ? guaranteed in extended temperature range (a version) description the l78xx series of three-terminal positive regulators is available in to-220, to-220fp, to- 3, d2pak and dpak packages and several fixed output voltages, making it useful in a wide range of applications. these regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. each type employs internal current limiting, thermal shut- down and safe area protection, making it essentially indest ructible. if adequate heat sinking is provided, they can deliver over 1 a output current. although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents. to-220fp to-3 to-220 d2pak dpak table 1. device summary part numbers L7805 l7806ac l7809ab l7815ab L7805c l7808c l7809ac l7815ac L7805ab l7808ab l7812c l7818c L7805ac l7808ac l7812ab l7824c l7806c l7885c l7812ac l7824ab l7806ab l7809c l7815c l7824ac www.st.com
contents l78xx, l78xxc, l78xxab, l78xxac 2/57 docid2143 rev 31 contents 1 diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6 application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 6.1 design consideration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 7 typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 8 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 9 order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 10 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
docid2143 rev 31 3/57 l78xx, l78xxc, l78xxab, l78xxac list of tables list of tables table 1. device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 table 2. absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 3. thermal data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 table 4. electrical characteristics of L7805 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 table 5. electrical characteristics of L7805a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 table 6. electrical characteristics of l7806a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 table 7. electrical characteristics of l7808a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 table 8. electrical characteristics of l7809a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 table 9. electrical characteristics of l7812a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 table 10. electrical characteristics of l7815a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 table 11. electrical characteristics of l7824a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 table 12. electrical characteristics of L7805c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 table 13. electrical characteristics of l7806c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 table 14. electrical characteristics of l7808c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 table 15. electrical characteristics of l7885c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 table 16. electrical characteristics of l7809c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 table 17. electrical characteristics of l7810c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 table 18. electrical characteristics of l7812c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 table 19. electrical characteristics of l7815c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 table 20. electrical characteristics of l7818c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 table 21. electrical characteristics of l7820c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 table 22. electrical characteristics of l7824c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 table 23. to-220 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 table 24. to-220fp mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 table 25. to-3 mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 table 26. dpak mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 table 27. tape and reel dpak mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 table 28. d2pak mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 table 29. d2pak footprint data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 table 30. tape and reel d2pak mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 table 31. order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 table 32. document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
list of figures l78xx, l78xxc, l78xxab, l78xxac 4/57 docid2143 rev 31 list of figures figure 1. block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 figure 2. pin connections (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 3. schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 figure 4. application circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 figure 5. dc parameter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 6. load regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 7. ripple rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 figure 8. fixed output regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 figure 9. current regulator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 10. circuit for increasing output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 11. adjustable output regulator (7 to 30 v) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 figure 12. 0.5 to 10 v regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 figure 13. high current voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 figure 14. high output current with short circuit protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 0 figure 15. tracking voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 figure 16. split power supply ( 15 v - 1 a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 figure 17. negative output voltage circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 figure 18. switching regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 figure 19. high input voltage circuit (configuration 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 figure 20. high input voltage circuit (configuration 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 figure 21. high output voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 figure 22. high input and output voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 figure 23. reducing power dissipation with dropping resistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 figure 24. remote shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 figure 25. power am modulator (unity voltage gain, i o ? 0.5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 figure 26. adjustable output voltage wit h temperature compensation . . . . . . . . . . . . . . . . . . . . . . . . 35 figure 27. light controllers (v o(min) = v xx + v be ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 figure 28. protection against input short-circuit with high capacitance loads . . . . . . . . . . . . . . . . . . . 36 figure 29. dropout voltage vs. junction te mperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 7 figure 30. peak output current vs. input/output differential vo ltage . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 figure 31. supply voltage rejection vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 figure 32. output voltage vs. junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 figure 33. output impedance vs. frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 figure 34. quiescent current vs. junction temp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 figure 35. load transient response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 figure 36. line transient response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 figure 37. quiescent curr ent vs. input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 figure 38. drawing dimension to-220 (type std-st dual gau ge) . . . . . . . . . . . . . . . . . . . . . . . . . . 40 figure 39. drawing dimension to-220 (type std-st single gauge) . . . . . . . . . . . . . . . . . . . . . . . . . 41 figure 40. drawing dimension tube for to-220 dual gauge ( mm.) . . . . . . . . . . . . . . . . . . . . . . . . . . 42 figure 41. drawing dimension tube for to-220 single gauge (mm.) . . . . . . . . . . . . . . . . . . . . . . . . . 42 figure 42. drawing dimension to-220fp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 figure 43. drawing dimension to-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 figure 44. drawing dimension dpak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 figure 45. drawing dimension tape and reel for dpak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 figure 46. drawing dimensio n d2pak (type std-st) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 figure 47. drawing dimension d2pak (type wooseok-subcon.). . . . . . . . . . . . . . . . . . . . . . . . . . . 50 figure 48. d2pak footprint recomme nded data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 figure 49. drawing dimension tape and reel for d2pak . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
docid2143 rev 31 5/57 l78xx, l78xxc, l78xxab, l78xxac diagram 1 diagram figure 1. block diagram
pin configuration l78xx, l78xxc, l78xxab, l78xxac 6/57 docid2143 rev 31 2 pin configuration figure 2. pin connections (top view) to-220fp to-3 to-220 d2pak (any type) dpak figure 3. schematic diagram
docid2143 rev 31 7/57 l78xx, l78xxc, l78xxab, l78xxac maximum ratings 3 maximum ratings note: absolute maximum ratings ar e those values beyond which damage to the device may occur. functional operation under these condition is not implied. table 2. absolute maximum ratings symbol parameter value unit v i dc input voltage for v o = 5 to 18 v 35 v for v o = 20, 24 v 40 i o output current internally limited p d power dissipation internally limited t stg storage temperature range -65 to 150 c t op operating junction temperature range for l78xx -55 to 150 c for l78xxc, l78xxac 0 to 125 for l78xxab -40 to 125 table 3. thermal data symbol parameter d2pak dpak to-220 to-220fp to-3 unit r thjc thermal resistance junction-case 3 8 5 5 4 c/w r thja thermal resistance junction-ambient 62.5 100 50 60 35 c/w figure 4. application circuits
test circuits l78xx, l78xxc, l78xxab, l78xxac 8/57 docid2143 rev 31 4 test circuits figure 5. dc parameter figure 6. load regulation figure 7. ripp le rejection
docid2143 rev 31 9/57 l78xx, l78xxc, l78xxab, l78xxac electrical characteristics 5 electrical characteristics refer to the test circuits, t j = -55 to 150 c, v i = 10 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 4. electrical characteristics of L7805 symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 4.8 5 5.2 v v o output voltage i o = 5 ma to 1 a, v i = 8 to 20 v 4.65 5 5.35 v ? v o (1) line regulation v i = 7 to 25 v, t j = 25c 3 50 mv v i = 8 to 12 v, t j = 25c 1 25 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 100 mv i o = 250 to 750 ma, t j = 25c 25 i d quiescent current t j = 25c 6 ma ? i d quiescent current change i o = 5 ma to 1 a 0.5 ma v i = 8 to 25 v 0.8 ? v o / ? t output voltage drift i o = 5 ma 0.6 mv/c en output noise voltage b =10 hz to 100 khz, t j = 25c 40 v/v o svr supply voltage rejection v i = 8 to 18 v, f = 120 hz 68 db v d dropout voltage i o = 1 a, t j = 25c 2 2.5 v r o output resistance f = 1 khz 17 m ? i sc short circuit current v i = 35 v, t j = 25c 0.75 1.2 a i scp short circuit peak current t j = 25c 1.3 2.2 3.3 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
electrical characteristics l78xx, l78xxc, l78xxab, l78xxac 10/57 docid2143 rev 31 v i = 10 v, i o = 1 a, t j = 0 to 125 c (L7805ac), t j = -40 to 125 c (L7805ab), unless otherwise specified. table 5. electrical characteristics of L7805a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 4.9 5 5.1 v v o output voltage i o = 5 ma to 1 a, v i = 7.5 to 18 v 4.8 5 5.2 v v o output voltage i o = 1 a, v i = 18 to 20 v, t j = 25c 4.8 5 5.2 v ? v o (1) line regulation v i = 7.5 to 25 v, i o = 500 ma, t j = 25c 7 50 mv v i = 8 to 12 v 10 50 mv v i = 8 to 12 v, t j = 25c 2 25 mv v i = 7.3 to 20 v, t j = 25c 7 50 mv ? v o (1) load regulation i o = 5 ma to 1 a 25 100 mv i o = 5 ma to 1.5 a, t j = 25c 30 100 i o = 250 to 750 ma 8 50 i q quiescent current t j = 25c 4.3 6 ma 6ma ? i q quiescent current change v i = 8 to 23 v, i o = 500 ma 0.8 ma v i = 7.5 to 20 v, t j = 25c 0.8 ma i o = 5 ma to 1 a 0.5 ma svr supply voltage rejection v i = 8 to 18 v, f = 120 hz, i o = 500 ma 68 db v d dropout voltage i o = 1 a, t j = 25c 2 v en output noise voltage t a = 25c, b =10 hz to 100 khz 10 v/v o r o output resistance f = 1 khz 17 m ? i sc short circuit current v i = 35 v, t a = 25c 0.2 a i scp short circuit peak current t j = 25c 2.2 a ? v o / ? t output voltage drift -1.1 mv/c 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
docid2143 rev 31 11/57 l78xx, l78xxc, l78xxab, l78xxac electrical characteristics v i = 11 v, i o = 1 a, t j = 0 to 125 c (l7806ac), t j = -40 to 125 c (l7806ab), unless otherwise specified. table 6. electrical characteristics of l7806a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 5.88 6 6.12 v v o output voltage i o = 5 ma to 1 a, v i = 8.6 to 19 v 5.76 6 6.24 v v o output voltage i o = 1 a, v i = 19 to 21 v, t j = 25c 5.76 6 6.24 v ? v o (1) line regulation v i = 8.6 to 25 v, i o = 500 ma, t j = 25c 9 60 mv v i = 9 to 13 v 11 60 mv v i = 9 to 13 v, t j = 25c 3 30 mv v i = 8.3 to 21 v, t j = 25c 9 60 mv ? v o (1) load regulation i o = 5 ma to 1 a 25 100 mv i o = 5 ma to 1.5 a, t j = 25c 30 100 i o = 250 to 750 ma 10 50 i q quiescent current t j = 25c 4.3 6 ma 6ma ? i q quiescent current change v i = 9 to 24 v, i o = 500 ma 0.8 ma v i = 8.6 to 21 v, t j = 25c 0.8 ma i o = 5 ma to 1 a 0.5 ma svr supply voltage rejection v i = 9 to 19 v, f = 120 hz, i o = 500 ma 65 db v d dropout voltage i o = 1 a, t j = 25c 2 v en output noise voltage t a = 25c, b =10 hz to 100 khz 10 v/v o r o output resistance f = 1 khz 17 m ? i sc short circuit current v i = 35 v, t a = 25c 0.2 a i scp short circuit peak current t j = 25c 2.2 a ? v o / ? t output voltage drift -0.8 mv/c 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
electrical characteristics l78xx, l78xxc, l78xxab, l78xxac 12/57 docid2143 rev 31 v i = 14 v, i o = 1 a, t j = 0 to 125 c (l7808ac), t j = -40 to 125 c (l7808ab), unless otherwise specified. table 7. electrical characteristics of l7808a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 7.84 8 8.16 v v o output voltage i o = 5 ma to 1 a, v i = 10.6 to 21 v 7.7 8 8.3 v v o output voltage i o = 1 a, v i = 21 to 23 v, t j = 25c 7.7 8 8.3 v ? v o (1) line regulation v i = 10.6 to 25 v, i o = 500 ma, t j = 25c 12 80 mv v i = 11 to 17 v 15 80 mv v i = 11 to 17 v, t j = 25c 5 40 mv v i = 10.4 to 23 v, t j = 25c 12 80 mv ? v o (1) load regulation i o = 5 ma to 1 a 25 100 mv i o = 5 ma to 1.5 a, t j = 25c 30 100 i o = 250 to 750 ma 10 50 i q quiescent current t j = 25c 4.3 6 ma 6ma ? i q quiescent current change v i = 11 to 23 v, i o = 500 ma 0.8 ma v i = 10.6 to 23 v, t j = 25c 0.8 ma i o = 5 ma to 1 a 0.5 ma svr supply voltage rejection v i = 11.5 to 21.5 v, f = 120 hz, i o = 500 ma 62 db v d dropout voltage i o = 1 a, t j = 25c 2 v en output noise voltage t a = 25c, b =10 hz to 100 khz 10 v/v o r o output resistance f = 1 khz 18 m ? i sc short circuit current v i = 35 v, t a = 25c 0.2 a i scp short circuit peak current t j = 25c 2.2 a ? v o / ? t output voltage drift -0.8 mv/c 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
docid2143 rev 31 13/57 l78xx, l78xxc, l78xxab, l78xxac electrical characteristics v i = 15 v, i o = 1 a, t j = 0 to 125 c (l7809ac), t j = -40 to 125 c (l7809ab), unless otherwise specified. table 8. electrical characteristics of l7809a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 8.82 9 9.18 v v o output voltage i o = 5 ma to 1 a, v i = 10.6 to 22 v 8.65 9 9.35 v v o output voltage i o = 1 a, v i = 22 to 24 v, t j = 25c 8.65 9 9.35 v ? v o (1) line regulation v i = 10.6 to 25 v, i o = 500 ma, t j = 25c 12 90 mv v i = 11 to 17 v 15 90 mv v i = 11 to 17 v, t j = 25c 5 45 mv v i = 11.4 to 23 v, t j = 25c 12 90 mv ? v o (1) load regulation i o = 5 ma to 1 a 25 100 mv i o = 5 ma to 1.5 a, t j = 25c 30 100 i o = 250 to 750 ma 10 50 i q quiescent current t j = 25c 4.3 6 ma 6ma ? i q quiescent current change v i = 11 to 25 v, i o = 500 ma 0.8 ma v i = 10.6 to 23 v, t j = 25c 0.8 ma i o = 5 ma to 1 a 0.5 ma svr supply voltage rejection v i = 11.5 to 21.5 v, f = 120 hz, i o = 500 ma 61 db v d dropout voltage i o = 1 a, t j = 25c 2 v en output noise voltage t a = 25c, b =10 hz to 100 khz 10 v/v o r o output resistance f = 1 khz 18 m ? i sc short circuit current v i = 35 v, t a = 25c 0.2 a i scp short circuit peak current t j = 25c 2.2 a ? v o / ? t output voltage drift -0.8 mv/c 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
electrical characteristics l78xx, l78xxc, l78xxab, l78xxac 14/57 docid2143 rev 31 v i = 19 v, i o = 1 a, t j = 0 to 125 c (l7812ac), t j = -40 to 125 c (l7812ab), unless otherwise specified. table 9. electrical characteristics of l7812a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 11.75 12 12.25 v v o output voltage i o = 5 ma to 1 a, v i = 14.8 to 25 v 11.5 12 12.5 v v o output voltage i o = 1 a, v i = 25 to 27 v, t j = 25c 11.5 12 12.5 v ? v o (1) line regulation v i = 14.8 to 30 v, i o = 500 ma, t j = 25c 13 120 mv v i = 16 to 12 v 16 120 mv v i = 16 to 12 v, t j = 25c 6 60 mv v i = 14.5 to 27 v, t j = 25c 13 120 mv ? v o (1) load regulation i o = 5 ma to 1 a 25 100 mv i o = 5 ma to 1.5 a, t j = 25c 30 100 i o = 250 to 750 ma 10 50 i q quiescent current t j = 25c 4.4 6 ma 6ma ? i q quiescent current change v i = 15 to 30 v, i o = 500 ma 0.8 ma v i = 14.8 to 27 v, t j = 25c 0.8 ma i o = 5 ma to 1 a 0.5 ma svr supply voltage rejection v i = 15 to 25 v, f = 120 hz, i o = 500 ma 60 db v d dropout voltage i o = 1 a, t j = 25c 2 v en output noise voltage t a = 25c, b = 10 hz to 100 khz 10 v/v o r o output resistance f = 1 khz 18 m ? i sc short circuit current v i = 35 v, t a = 25c 0.2 a i scp short circuit peak current t j = 25c 2.2 a ? v o / ? t output voltage drift -1 mv/c 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
docid2143 rev 31 15/57 l78xx, l78xxc, l78xxab, l78xxac electrical characteristics v i = 23 v, i o = 1 a, t j = 0 to 125 c (l7815ac), t j = -40 to 125 c (l7815ab), unless otherwise specified. table 10. electrical characteristics of l7815a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 14.7 15 15.3 v v o output voltage i o = 5 ma to 1 a, v i = 17.9 to 28 v 14.4 15 15.6 v v o output voltage i o = 1 a, v i = 28 to 30 v, t j = 25c 14.4 15 15.6 v ? v o (1) line regulation v i = 17.9 to 30 v, i o = 500 ma, t j = 25c 13 150 mv v i = 20 to 26 v 16 150 mv v i = 20 to 26 v, t j = 25c 6 75 mv v i = 17.5 to 30 v, t j = 25c 13 150 mv ? v o (1) load regulation i o = 5 ma to 1 a 25 100 mv i o = 5 ma to 1.5 a, t j = 25c 30 100 i o = 250 to 750 ma 10 50 i q quiescent current t j = 25c 4.4 6 ma 6ma ? i q quiescent current change v i = 17.5 to 30 v, i o = 500 ma 0.8 ma v i = 17.5 to 30 v, t j = 25c 0.8 ma i o = 5 ma to 1 a 0.5 ma svr supply voltage rejection v i = 18.5 to 28.5 v, f = 120 hz, i o = 500 ma 58 db v d dropout voltage i o = 1 a, t j = 25c 2 v en output noise voltage t a = 25c, b = 10hz to 100 khz 10 v/v o r o output resistance f = 1 khz 19 m ? i sc short circuit current v i = 35 v, t a = 25c 0.2 a i scp short circuit peak current t j = 25c 2.2 a ? v o / ? t output voltage drift -1 mv/c 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
electrical characteristics l78xx, l78xxc, l78xxab, l78xxac 16/57 docid2143 rev 31 v i = 33 v, i o = 1 a, t j = 0 to 125 c (l7824ac), t j = -40 to 125 c (l7824ab), unless otherwise specified. table 11. electrical characteristics of l7824a symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 23.5 24 24.5 v v o output voltage i o = 5 ma to 1 a, v i = 27.3 to 37 v 23 24 25 v v o output voltage i o = 1 a, v i = 37 to 38 v, t j = 25c 23 24 25 v ? v o (1) line regulation v i = 27 to 38 v, i o = 500 ma, t j = 25c 31 240 mv v i = 30 to 36 v 35 200 mv v i = 30 to 36 v, t j = 25c 14 120 mv v i = 26.7 to 38 v, t j = 25c 31 240 mv ? v o (1) load regulation i o = 5 ma to 1 a 25 100 mv i o = 5 ma to 1.5 a, t j = 25c 30 100 i o = 250 to 750 ma 10 50 i q quiescent current t j = 25c 4.6 6 ma 6ma ? i q quiescent current change v i = 27.3 to 38 v, i o = 500 ma 0.8 ma v i = 27.3 to 38 v, t j = 25c 0.8 ma i o = 5 ma to 1 a 0.5 ma svr supply voltage rejection v i = 28 to 38 v, f = 120 hz, i o = 500 ma 54 db v d dropout voltage i o = 1 a, t j = 25c 2 v en output noise voltage t a = 25c, b = 10 hz to 100 khz 10 v/v o r o output resistance f = 1 khz 20 m ? i sc short circuit current v i = 35 v, t a = 25c 0.2 a i scp short circuit peak current t j = 25c 2.2 a ? v o / ? t output voltage drift -1.5 mv/c 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
docid2143 rev 31 17/57 l78xx, l78xxc, l78xxab, l78xxac electrical characteristics refer to the test circuits, t j = 0 to 125 c, v i = 10 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 12. electrical characteristics of L7805c symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 4.8 5 5.2 v v o output voltage i o = 5 ma to 1 a, v i = 7 to 18 v 4.75 5 5.25 v v o output voltage i o = 1 a, v i = 18 to 20v, t j = 25c 4.75 5 5.25 v ? v o (1) line regulation v i = 7 to 25 v, t j = 25c 3 100 mv v i = 8 to 12 v, t j = 25c 1 50 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 100 mv i o = 250 to 750 ma, t j = 25c 50 i d quiescent current t j = 25c 8 ma ? i d quiescent current change i o = 5 ma to 1 a 0.5 ma v i = 7 to 23 v 0.8 ? v o / ? t output voltage drift i o = 5 ma -1.1 mv/c en output noise voltage b = 10 hz to 100 khz, t j = 25c 40 v/v o svr supply voltage rejection v i = 8 to 18 v, f = 120 hz 62 db v d dropout voltage i o = 1 a, t j = 25c 2 v r o output resistance f = 1 khz 17 m ? i sc short circuit current v i = 35 v, t j = 25c 0.75 a i scp short circuit peak current t j = 25c 2.2 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
electrical characteristics l78xx, l78xxc, l78xxab, l78xxac 18/57 docid2143 rev 31 refer to the test circuits, t j = 0 to 125 c, v i = 11 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 13. electrical characteristics of l7806c symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 5.75 6 6.25 v v o output voltage i o = 5 ma to 1 a, v i = 8 to 19 v 5.7 6 6.3 v v o output voltage i o = 1 a, v i = 19 to 21 v, t j = 25c 5.7 6 6.3 v ? v o (1) line regulation v i = 8 to 25 v, t j = 25c 120 mv v i = 9 to 13 v, t j = 25c 60 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 120 mv i o = 250 to 750 ma, t j = 25c 60 i d quiescent current t j = 25c 8 ma ? i d quiescent current change i o = 5 ma to 1 a 0.5 ma v i = 8 to 24 v 1.3 ? v o / ? t output voltage drift i o = 5 ma -0.8 mv/c en output noise voltage b = 10 hz to 100 khz, t j = 25c 45 v/v o svr supply voltage rejection v i = 9 to 19 v, f = 120 hz 59 db v d dropout voltage i o = 1 a, t j = 25c 2 v r o output resistance f = 1 khz 19 m ? i sc short circuit current v i = 35 v, t j = 25c 0.55 a i scp short circuit peak current t j = 25c 2.2 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
docid2143 rev 31 19/57 l78xx, l78xxc, l78xxab, l78xxac electrical characteristics refer to the test circuits, t j = 0 to 125 c, v i = 14 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 14. electrical characteristics of l7808c symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 7.7 8 8.3 v v o output voltage i o = 5 ma to 1 a, v i = 10.5 to 21 v 7.6 8 8.4 v v o output voltage i o = 1 a, v i = 21 to 25 v, t j = 25c 7.6 8 8.4 v ? v o (1) line regulation v i = 10.5 to 25 v, t j = 25c 160 mv v i = 11 to 17 v, t j = 25c 80 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 160 mv i o = 250 to 750 ma, t j = 25c 80 i d quiescent current t j = 25c 8 ma ? i d quiescent current change i o = 5 ma to 1 a 0.5 ma v i = 10.5 to 25 v 1 ? v o / ? t output voltage drift i o = 5 ma -0.8 mv/c en output noise voltage b = 10 hz to 100 khz, t j = 25c 52 v/v o svr supply voltage rejection v i = 11.5 to 21.5 v, f = 120 hz 56 db v d dropout voltage i o = 1 a, t j = 25c 2 v r o output resistance f = 1 khz 16 m ? i sc short circuit current v i = 35 v, t j = 25c 0.45 a i scp short circuit peak current t j = 25c 2.2 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
electrical characteristics l78xx, l78xxc, l78xxab, l78xxac 20/57 docid2143 rev 31 refer to the test circuits, t j = 0 to 125 c, v i = 14.5 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 15. electrical characteristics of l7885c symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 8.2 8.5 8.8 v v o output voltage i o = 5 ma to 1 a, v i = 11 to 21.5 v 8.1 8.5 8.9 v v o output voltage i o = 1 a, v i = 21.5 to 26 v, t j = 25c 8.1 8.5 8.9 v ? v o (1) line regulation v i = 11 to 27 v, t j = 25c 160 mv v i = 11.5 to 17.5 v, t j = 25c 80 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 160 mv i o = 250 to 750 ma, t j = 25c 80 i d quiescent current t j = 25c 8 ma ? i d quiescent current change i o = 5 ma to 1 a 0.5 ma v i = 11 to 26 v 1 ? v o / ? t output voltage drift i o = 5 ma -0.8 mv/c en output noise voltage b = 10 hz to 100 khz, t j = 25c 55 v/v o svr supply voltage rejection v i = 12 to 22 v, f = 120 hz 56 db v d dropout voltage i o = 1 a, t j = 25c 2 v r o output resistance f = 1 khz 16 m ? i sc short circuit current v i = 35 v, t j = 25c 0.45 a i scp short circuit peak current t j = 25c 2.2 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
docid2143 rev 31 21/57 l78xx, l78xxc, l78xxab, l78xxac electrical characteristics refer to the test circuits, t j = 0 to 125 c, v i = 15 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 16. electrical characteristics of l7809c symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 8.64 9 9.36 v v o output voltage i o = 5 ma to 1 a, v i = 11.5 to 22 v 8.55 9 9.45 v v o output voltage i o = 1 a, v i = 22 to 26 v, t j = 25c 8.55 9 9.45 v ? v o (1) line regulation v i = 11.5 to 26 v, t j = 25c 180 mv v i = 12 to 18 v, t j = 25c 90 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 180 mv i o = 250 to 750 ma, t j = 25c 90 i d quiescent current t j = 25c 8 ma ? i d quiescent current change i o = 5 ma to 1 a 0.5 ma v i = 11.5 to 26 v 1 ? v o / ? t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b = 10 hz to 100 khz, t j = 25c 70 v/v o svr supply voltage rejection v i = 12 to 23 v, f = 120 hz 55 db v d dropout voltage i o = 1 a, t j = 25c 2 v r o output resistance f = 1 khz 17 m ? i sc short circuit current v i = 35 v, t j = 25c 0.40 a i scp short circuit peak current t j = 25c 2.2 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
electrical characteristics l78xx, l78xxc, l78xxab, l78xxac 22/57 docid2143 rev 31 refer to the test circuits, t j = 0 to 125 c, v i = 15 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 17. electrical characteristics of l7810c symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 9.6 10 10.4 v v o output voltage i o = 5 ma to 1 a, v i = 12.5 to 23 v 9.5 10 10.5 v v o output voltage i o = 1 a, v i = 23 to 26 v, t j = 25c 9.5 10 10.5 v ? v o (1) line regulation v i = 12.5 to 26 v, t j = 25c 200 mv v i = 13.5 to 19 v, t j = 25c 100 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 200 mv i o = 250 to 750 ma, t j = 25c 100 i d quiescent current t j = 25c 8 ma ? i d quiescent current change i o = 5 ma to 1 a 0.5 ma v i = 12.5 to 26 v 1 ? v o / ? t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b = 10 hz to 100 khz, t j = 25c 70 v/v o svr supply voltage rejection v i = 13 to 23 v, f = 120 hz 55 db v d dropout voltage i o = 1 a, t j = 25c 2 v r o output resistance f = 1 khz 17 m ? i sc short circuit current v i = 35 v, t j = 25c 0.40 a i scp short circuit peak current t j = 25c 2.2 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
docid2143 rev 31 23/57 l78xx, l78xxc, l78xxab, l78xxac electrical characteristics refer to the test circuits, t j = 0 to 125 c, v i = 19 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 18. electrical characteristics of l7812c symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 11.5 12 12.5 v v o output voltage i o = 5 ma to 1 a, v i = 14.5 to 25 v 11.4 12 12.6 v v o output voltage i o = 1 a, v i = 25 to 27 v, t j = 25c 11.4 12 12.6 v ? v o (1) line regulation v i = 14.5 to 30 v, t j = 25c 240 mv v i = 16 to 22 v, t j = 25c 120 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 240 mv i o = 250 to 750 ma, t j = 25c 120 i d quiescent current t j = 25c 8 ma ? i d quiescent current change i o = 5 ma to 1 a 0.5 ma v i = 14.5 to 30 v 1 ? v o / ? t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b = 10 hz to 100 khz, t j = 25c 75 v/v o svr supply voltage rejection v i = 15 to 25 v, f = 120 hz 55 db v d dropout voltage i o = 1 a, t j = 25c 2 v r o output resistance f = 1 khz 18 m ? i sc short circuit current v i = 35 v, t j = 25c 0.35 a i scp short circuit peak current t j = 25c 2.2 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
electrical characteristics l78xx, l78xxc, l78xxab, l78xxac 24/57 docid2143 rev 31 refer to the test circuits, t j = 0 to 125 c, v i = 23 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 19. electrical characteristics of l7815c symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 14.4 15 15.6 v v o output voltage i o = 5 ma to 1 a, v i = 17.5 to 28 v 14.25 15 15.75 v v o output voltage i o = 1 a, v i = 28 to 30 v, t j = 25c 14.25 15 15.75 v ? v o (1) line regulation v i = 17.5 to 30 v, t j = 25c 300 mv v i = 20 to 26 v, t j = 25c 150 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 300 mv i o = 250 to 750 ma, t j = 25c 150 i d quiescent current t j = 25c 8 ma ? i d quiescent current change i o = 5 ma to 1a 0.5 ma v i = 17.5 to 30 v 1 ? v o / ? t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b = 10 hz to 100khz, t j = 25c 90 v/v o svr supply voltage rejection v i = 18.5 to 28.5 v, f = 120 hz 54 db v d dropout voltage i o = 1 a, t j = 25c 2 v r o output resistance f = 1 khz 19 m ? i sc short circuit current v i = 35 v, t j = 25c 0.23 a i scp short circuit peak current t j = 25c 2.2 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
docid2143 rev 31 25/57 l78xx, l78xxc, l78xxab, l78xxac electrical characteristics refer to the test circuits, t j = 0 to 125 c, v i = 26 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 20. electrical characteristics of l7818c symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 17.3 18 18.7 v v o output voltage i o = 5 ma to 1 a, v i = 21 to 31 v 17.1 18 18.9 v v o output voltage i o = 1 a, v i = 31 to 33 v, t j = 25c 17.1 18 18.9 v ? v o (1) line regulation v i = 21 to 33 v, t j = 25c 360 mv v i = 24 to 30 v, t j = 25c 180 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 360 mv i o = 250 to 750 ma, t j = 25c 180 i d quiescent current t j = 25c 8 ma ? i d quiescent current change i o = 5 ma to 1 a 0.5 ma v i = 21 to 33 v 1 ? v o / ? t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b = 10 hz to 100 khz, t j = 25c 110 v/v o svr supply voltage rejection v i = 22 to 32 v, f = 120 hz 53 db v d dropout voltage i o = 1 a, t j = 25c 2 v r o output resistance f = 1 khz 22 m ? i sc short circuit current v i = 35 v, t j = 25c 0.20 a i scp short circuit peak current t j = 25c 2.1 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
electrical characteristics l78xx, l78xxc, l78xxab, l78xxac 26/57 docid2143 rev 31 refer to the test circuits, t j = 0 to 125 c, v i = 28 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 21. electrical characteristics of l7820c symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 19.2 20 20.8 v v o output voltage i o = 5 ma to 1 a, v i = 23 to 33 v 19 20 21 v v o output voltage i o = 1 a, v i = 33 to 35 v, t j = 25c 19 20 21 v ? v o (1) line regulation v i = 22.5 to 35 v, t j = 25c 400 mv v i = 26 to 32 v, t j = 25c 200 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 400 mv i o = 250 to 750 ma, t j = 25c 200 i d quiescent current t j = 25c 8 ma ? i d quiescent current change i o = 5 ma to 1 a 0.5 ma v i = 23 to 35 v 1 ? v o / ? t output voltage drift i o = 5 ma -1 mv/c en output noise voltage b = 10 hz to 100 khz, t j = 25c 150 v/v o svr supply voltage rejection v i = 24 to 35 v, f = 120 hz 52 db v d dropout voltage i o = 1 a, t j = 25c 2 v r o output resistance f = 1 khz 24 m ? i sc short circuit current v i = 35 v, t j = 25c 0.18 a i scp short circuit peak current t j = 25c 2.1 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
docid2143 rev 31 27/57 l78xx, l78xxc, l78xxab, l78xxac electrical characteristics refer to the test circuits, t j = 0 to 125 c, v i = 33 v, i o = 500 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 22. electrical characteristics of l7824c symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25c 23 24 25 v v o output voltage i o = 5 ma to 1 a, v i = 27 to 37 v 22.8 24 25.2 v v o output voltage i o = 1 a, v i = 37 to 38 v, t j = 25c 22.8 24 25.2 v ? v o (1) line regulation v i = 27 to 38 v, t j = 25c 480 mv v i = 30 to 36 v, t j = 25c 240 ? v o (1) load regulation i o = 5 ma to 1.5 a, t j = 25c 480 mv i o = 250 to 750 ma, t j = 25c 240 i d quiescent current t j = 25c 8 ma ? i d quiescent current change i o = 5 ma to 1 a 0.5 ma v i = 27 to 38 v 1 ? v o / ? t output voltage drift i o = 5 ma -1.5 mv/c en output noise voltage b = 10 hz to 100 khz, t j = 25c 170 v/v o svr supply voltage rejection v i = 28 to 38 v, f = 120 hz 50 db v d dropout voltage i o = 1 a, t j = 25c 2 v r o output resistance f = 1 khz 28 m ? i sc short circuit current v i = 35 v, t j = 25c 0.15 a i scp short circuit peak current t j = 25c 2.1 a 1. load and line regulation are specified at cons tant junction temperature. changes in v o due to heating effects must be taken into account separately. pulse testing with low duty cycle is used.
application information l78xx, l78xxc, l78xxab, l78xxac 28/57 docid2143 rev 31 6 application information 6.1 design consideration the l78xx series of fixed voltage regulators are designed with thermal overload protection that shuts down the circuit when subjected to an excessive power overload condition, internal short-circuit protection that limits the maximum curr ent the circuit will pass, and output transistor safe-area compensation that reduces the output short-circuit current as the voltage across the pass transistor is increased. in many low current applications, compensation capacitors are not required. however, it is recommended that the regulator input be bypassed with capacitor if the regulato r is connected to the power supply filter with long lengths, or if the output load capacitance is large. an input bypass capacitor should be selected to provide good high frequency characteristics to insure stable operation under all load conditions. a 0.33 f or larger tantalum, mylar or other capacitor having low internal impedance at high frequencies should be chos en. the bypass capacitor should be mounted with the shortest possible lead s directly across the regulators input terminals. normally good construction techniques should be used to minimize ground loops and lead resistance drops since the regulator has no external sense lead. the addition of an operational amplifier allows adjustment to higher or intermediate values while retaining regulation c haracteristics. the minimum voltage obtained with the arrangement is 2 v greater than the regulator voltage. the circuit of figure 13 can be modified to provide supply protection against short circuit by adding a short circuit sense resistor, rsc, and an additional pnp transistor. the current sensing pnp must be able to handle the short circuit current of the three terminal regulator therefore a four ampere plastic power transistor is specified. figure 8. fixed output regulator 1. to specify an output voltage, substitute voltage value for "xx". 2. although no output capacitor is need for stabil ity, it does improve transient response. 3. required if regulator is locate an appr eciable distance from power supply filter.
docid2143 rev 31 29/57 l78xx, l78xxc, l78xxab, l78xxac application information figure 9. current regulator i o = v xx /r 1 +i d figure 10. circuit for in creasing output voltage i r1 ? 5 i d v o = v xx (1+r 2 /r 1 )+i d r 2 figure 11. adjustable outp ut regulator (7 to 30 v)
application information l78xx, l78xxc, l78xxab, l78xxac 30/57 docid2143 rev 31 figure 12. 0.5 to 10 v regulator v o =v xx r 4 /r 1 figure 13. high current voltage regulator i o = i reg + q 1 (i reg ______) v beq1 r 1 r 1 = ______________ v beq1 i req -(i q1 /b q1 ) figure 14. high output current with short circuit protection r sc =v beq2 /i sc
docid2143 rev 31 31/57 l78xx, l78xxc, l78xxab, l78xxac application information * against potential latch-up problems. figure 15. tracking voltage regulator figure 16. split power supply ( 15 v - 1 a)
application information l78xx, l78xxc, l78xxab, l78xxac 32/57 docid2143 rev 31 figure 17. negative output voltage circuit figure 18. switching regulator figure 19. high input voltage circuit (configuration 1) v in = v i - (v z + v be )
docid2143 rev 31 33/57 l78xx, l78xxc, l78xxab, l78xxac application information figure 20. high input voltage circuit (configuration 2) figure 21. high output voltage regulator figure 22. high input and output voltage v o = v xx + v z1
application information l78xx, l78xxc, l78xxab, l78xxac 34/57 docid2143 rev 31 note: the circuit performs well up to 100 khz. figure 23. reducing power dissip ation with dropping resistor r = ____________________ v i(min) -v xx -v drop(max) i o(max) +i d(max) figure 24. remote shutdown figure 25. power am modulator (unity voltage gain, i o ? ? 0.5)
docid2143 rev 31 35/57 l78xx, l78xxc, l78xxab, l78xxac application information note: q 2 is connected as a diode in order to compensate the variation of the q 1 v be with the temperature. c allows a slow rise time of the v o . figure 26. adjustable output voltage with temperature compensation v o = v xx (1+r 2 /r 1 ) + v be figure 27. light controllers (v o(min) = v xx + v be ) v o rises when the light goes up v o falls when the light goes up
application information l78xx, l78xxc, l78xxab, l78xxac 36/57 docid2143 rev 31 note: application with high capacitance loads and an output voltage greater than 6 volts need an external diode (see figure 23 on page 34 ) to protect the device against input short circuit. in this case the input voltage fa lls rapidly while the output voltage decrease slowly. the capacitance discharges by means of the base-e mitter junction of the series pass transistor in the regulator. if the energy is sufficiently high, the transistor may be destroyed. the external diode by-passes the current from the ic to ground. figure 28. protection against input shor t-circuit with high capacitance loads
docid2143 rev 31 37/57 l78xx, l78xxc, l78xxab, l78xxac typical performance 7 typical performance figure 29. dropout voltage vs. junction temperature figure 30. peak output current vs. input/output differential voltage figure 31. supply voltage rejection vs. frequency figure 32. output voltage vs. junction temperature figure 33. output impedance vs. frequency figure 34. quiescent current vs. junction temp.
typical performance l78xx, l78xxc, l78xxab, l78xxac 38/57 docid2143 rev 31 figure 35. load transient response figure 36. line transient response figure 37. quiescent current vs. input voltage
docid2143 rev 31 39/57 l78xx, l78xxc, l78xxab, l78xxac package mechanical data 8 package mechanical data in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions a nd product status are available at: www.st.com . ecopack ? is an st trademark. in spite of some difference in tolerances, the packages are compatible. table 23. to-220 mechanical data dim. type std - st dual gauge t ype std - st single gauge mm. mm. min. typ. max. min. typ. max. a 4.40 4.60 4.40 4.60 b 0.61 0.88 0.61 0.88 b1 1.14 1.70 1.14 1.70 c 0.48 0.70 0.48 0.70 d 15.25 15.75 15.25 15.75 d1 1.27 e 10.00 10.40 10.00 10.40 e 2.40 2.70 2.40 2.70 e1 4.95 5.15 4.95 5.15 f 1.23 1.32 0.51 0.60 h1 6.20 6.60 6.20 6.60 j1 2.40 2.72 2.40 2.72 l 13.00 14.00 13.00 14.00 l1 3.50 3.93 3.50 3.93 l20 16.40 16.40 l30 28.90 28.90 ? p 3.75 3.85 3.75 3.85 q 2.65 2.95 2.65 2.95
package mechanical data l78xx, l78xxc, l78xxab, l78xxac 40/57 docid2143 rev 31 note: 1 maximum resin gate protrusion: 0.5 mm. 2 resin gate position is accepted in each of t he two positions shown on the drawing, or their symmetrical. figure 38. drawing dimension to-220 (type std-st dual gauge) 0015988_s
docid2143 rev 31 41/57 l78xx, l78xxc, l78xxab, l78xxac package mechanical data figure 39. drawing dimension to-220 (type std-st single gauge) 8174627_b
package mechanical data l78xx, l78xxc, l78xxab, l78xxac 42/57 docid2143 rev 31 figure 40. drawing dimension tube for to-220 dual gauge (mm.) figure 41. drawing dimension tube for to-220 single gauge (mm.)
docid2143 rev 31 43/57 l78xx, l78xxc, l78xxab, l78xxac package mechanical data figure 42. drawing dimension to-220fp 7012510a-h
package mechanical data l78xx, l78xxc, l78xxab, l78xxac 44/57 docid2143 rev 31 table 24. to-220fp mechanical data dim. mm. inch. min. typ. max. min. typ. max. a 4.40 4.60 0.173 0.181 b 2.5 2.7 0.098 0.106 d 2.5 2.75 0.098 0.108 e 0.45 0.70 0.017 0.027 f 0.75 1 0.030 0.039 f1 1.15 1.50 0.045 0.059 f2 1.15 1.50 0.045 0.059 g 4.95 5.2 0.194 0.204 g1 2.4 2.7 0.094 0.106 h 10.0 10.40 0.393 0.409 l2 16 0.630 l3 28.6 30.6 1.126 1.204 l4 9.8 10.6 0.385 0.417 l5 2.9 3.6 0.114 0.142 l6 15.9 16.4 0.626 0.645 l7 9 9.3 0.354 0.366 dia. 3 3.2 0.118 0.126
docid2143 rev 31 45/57 l78xx, l78xxc, l78xxab, l78xxac package mechanical data figure 43. drawing dimension to-3 e b r c d a p g n v u o p003c/c table 25. to-3 mechanical data dim. mm. inch. min. typ. max. min. typ. max. a 11.85 0.466 b 0.96 1.05 1.10 0.037 0.041 0.043 c 1.70 0.066 d 8.7 0.342 e 20.0 0.787 g 10.9 0.429 n 16.9 0.665 p 26.2 1.031 r 3.88 4.09 0.152 0.161 u 39.5 1.555 v 30.10 1.185
package mechanical data l78xx, l78xxc, l78xxab, l78xxac 46/57 docid2143 rev 31 figure 44. drawing dimension dpak 0068772-f
docid2143 rev 31 47/57 l78xx, l78xxc, l78xxab, l78xxac package mechanical data table 26. dpak mechanical data dim. mm. inch. min. typ. max. min. typ. max. a 2.2 2.4 0.086 0.094 a1 0.9 1.1 0.035 0.043 a2 0.03 0.23 0.001 0.009 b 0.64 0.9 0.025 0.035 b4 5.2 5.4 0.204 0.212 c 0.45 0.6 0.017 0.023 c2 0.48 0.6 0.019 0.023 d 6 6.2 0.236 0.244 d1 5.1 0.200 e 6.4 6.6 0.252 0.260 e1 4.7 0.185 e2.28 0.090 e1 4.4 4.6 0.173 0.181 h 9.35 10.1 0.368 0.397 l 1 0.039 (l1) 2.8 0.110 l2 0.8 0.031 l4 0.6 1 0.023 0.039 r0.2 0.008 v2 0 8 0 8
package mechanical data l78xx, l78xxc, l78xxab, l78xxac 48/57 docid2143 rev 31 figure 45. drawing dimension tape and reel for dpak table 27. tape and reel dpak mechanical data dim. mm. inch. min. typ. max. min. typ. max. a 330 12.992 c 12.8 13.0 13.2 0.504 0.512 0.519 d 20.2 0.795 n 60 2.362 t 22.4 0.882 ao 6.80 6.90 7.00 0.268 0.272 0.2.76 bo 10.40 10.50 10.60 0.409 0.413 0.417 ko 2.55 2.65 2.75 0.100 0.104 0.105 po 3.9 4.0 4.1 0.153 0.157 0.161 p 7.9 8.0 8.1 0.311 0.315 0.319
docid2143 rev 31 49/57 l78xx, l78xxc, l78xxab, l78xxac package mechanical data figure 46. drawing dimension d2pak (type std-st) 0079457/l
package mechanical data l78xx, l78xxc, l78xxab, l78xxac 50/57 docid2143 rev 31 figure 47. drawing dimension d2pak (type wooseok-subcon.) 0079457/l
docid2143 rev 31 51/57 l78xx, l78xxc, l78xxab, l78xxac package mechanical data note: the d2pak package coming from the subcon tractor wooseok is fully compatible with the st's package suggested footprint. table 28. d2pak mechanical data dim. type std-st type wooseok-subcon. mm. mm. min. typ. max. min. typ. max. a 4.40 4.60 4.30 4.70 a1 0.03 0.23 0 0.20 b 0.70 0.93 0.70 0.90 b2 1.14 1.70 1.17 1.37 c 0.45 0.60 0.45 0.50 0.60 c2 1.23 1.36 1.25 1.30 1.40 d 8.95 9.35 9 9.20 9.40 d1 7.50 7.50 e 10 10.40 9.80 10.20 e1 8.50 7.50 e2.54 2.54 e1 4.88 5.28 5.08 h 15 15.85 15 15.30 15.60 j1 2.49 2.69 2.20 2.60 l 2.29 2.79 1.79 2.79 l1 1.27 1.40 1 1.40 l2 1.30 1.75 1.20 1.60 r 0.4 0.30 v2 0 8 0 3
package mechanical data l78xx, l78xxc, l78xxab, l78xxac 52/57 docid2143 rev 31 figure 48. d2pak footprint recommended data table 29. d2pak footprint data values dim. mm. inch. a 12.20 0.480 b9.750.384 c 16.90 0.665 d3.500.138 e1.600.063 f2.540.100 g5.080.200
docid2143 rev 31 53/57 l78xx, l78xxc, l78xxab, l78xxac package mechanical data table 30. tape and reel d2pak mechanical data dim. mm. inch. min. typ. max. min. typ. max. a 180 7.086 c 12.8 13.0 13.2 0.504 0.512 0.519 d 20.2 0.795 n 60 2.362 t 14.4 0.567 ao 10.50 10.6 10.70 0.413 0.417 0.421 bo 15.70 15.80 15.90 0.618 0.622 0.626 ko 4.80 4.90 5.00 0.189 0.193 0.197 po 3.9 4.0 4.1 0.153 0.157 0.161 p 11.9 12.0 12.1 0.468 0.472 0.476 figure 49. drawing dimension tape and reel for d2pak
order codes l78xx, l78xxc, l78xxab, l78xxac 54/57 docid2143 rev 31 9 order codes table 31. order codes part numbers order codes to-220 dpak d2pak to-220fp to-3 output voltages L7805 L7805t 5 v L7805c L7805cv L7805cdt-tr L7805cd2t-tr L7805cp L7805ct 5 v L7805cv-dg (1) 5 v L7805ab L7805abv L7805abd2t-tr L7805abp 5 v L7805abv-dg (1) 5 v L7805ac L7805acv L7805acd2t-tr L7805acp 5 v L7805acv-dg (1) 5 v l7806c l7806cv l7806cd2t-tr l7806ct 6 v l7806cv-dg (1) 6 v l7806ab l7806abv l7806abd2t-tr 6 v l7806abv-dg (1) 6 v l7806ac l7806acv 6 v l7806acv-dg (1) 6 v l7808c l7808cv l7808cd2t-tr 8 v l7808cv-dg (1) 8 v l7808ab l7808abv l7808abd2t-tr 8 v l7808abv-dg (1) 8 v l7808ac l7808acv 8 v l7808acv-dg (1) 8 v l7885c l7885cv l7885cd2t-tr (2) l7885cp (2) l7885ct (2) 8.5 v l7809c l7809cv l7809cd2t-tr l7809cp 9 v l7809cv-dg (1) 9 v l7809ab l7809abv l7809abd2t-tr 9 v l7809ac l7809acv 9 v l7812c l7812cv l7812cd2t-tr l7812cp l7812ct 12 v l7812cv-dg (1) 12 v l7812ab l7812abv l7812abd2t-tr 12 v l7812abv-dg (1) 12 v l7812ac l7812acv l7812acd2t-tr 12 v l7812acv-dg (1) 12 v
docid2143 rev 31 55/57 l78xx, l78xxc, l78xxab, l78xxac order codes l7815c l7815cv l7815cd2t-tr l7815cp l7815ct 15 v l7815cv-dg (1) 15 v l7815ab l7815abv l7815abd2t-tr 15 v l7815abv-dg (1) 15 v l7815ac l7815acv l7815acd2t-tr 15 v l7815acv-dg (1) 15 v l7818c l7818cv l7818cd2t-tr (2) l7818ct 18 v l7818cv-dg (1) 18 v l7824c l7824cv l7824cd2t-tr l7824cp l7824ct 24 v l7824cv-dg (1) 24 v l7824ab l7824abv 24 v l7824abv-dg (1) 24 v l7824ac l7824acv 24 v l7824acv-dg (1) 24 v 1. to-220 dual gauge frame. 2. available on request. table 31. order codes part numbers order codes to-220 dpak d2pak to-220fp to-3 output voltages
revision history l78xx, l78xxc, l78xxab, l78xxac 56/57 docid2143 rev 31 10 revision history table 32. document revision history date revision changes 21-jun-2004 12 document updating. 03-aug-2006 13 order codes has been updated and new template. 19-jan-2007 14 d2pak mechanical data has been updated and add footprint data. 31-may-2007 15 order codes has been updated. 29-aug-2007 16 added table 1 in cover page. 11-dec-2007 17 modified: table 31 . 06-feb-2008 18 added: to-220 mechanical data figure 38 on page 40 , figure 39 on page 41 , and table 23 on page 39 . modified: table 31 on page 54 . 18-mar-2008 19 added: table 26: dpak mechanical data on page 47 , table 27: tape and reel dpak mechanical data on page 48 . modified: table 31 on page 54 . 26-jan-2010 20 modified table 1 on page 1 and table 23 on page 39 , added: figure 38 on page 40 and figure 39 on page 41 , figure 40 on page 42 and figure 41 on page 42 . 04-mar-2010 21 added notes figure 38 on page 40 . 08-sep-2010 22 modified table 31 on page 54 . 23-nov-2010 23 added: t j = 25 c test condition in ? v o on table 5 , 6 , 7 , 8 , 9 , 10 and ta ble 11 . 16-sep-2011 24 modified title on page 1. 30-nov-2011 25 added: order codes L7805cv-dg, l7806cv-dg, l7808abv-dg, l7812cv-dg and l7815cv-dg table 31 on page 54 . 08-feb-2012 26 added: order codes L7805acv-dg, L7805abv-dg, l7806abv-dg, l7808cv- dg, l7809cv-dg, l7812acv-dg, l7818cv-dg, l7824cv-dg table 31 on page 54 . 27-mar-2012 27 added: order codes l7812abv-dg, l7815abv-dg table 31 on page 54 . 27-apr-2012 28 modified: v i = 10.4 to 23 v ==> v i = 11.4 to 23 v test conditon value line regulation table 8 on page 13 . 10-may-2012 29 added: order codes l7806acv-dg, l7808acv-dg, l7815acv-dg, l7824abv-dg and l7824acv-dg table 31 on page 54 . 19-sep-2012 30 modified load regulation units from v to mv in table 5 to table 11 . 12-mar-2013 31 modified: v o output voltage at 25 c min. value 14.4 v table 19 on page 24 .
docid2143 rev 31 57/57 l78xx, l78xxc, l78xxab, l78xxac please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. all st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a parti cular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. st products are not authorized for use in weapons. nor are st products designed or authorized for use in: (a) safety critical applications such as life supporting, active implanted devices or systems with product functional safety requirements; (b) aeronautic applications; (c) automotive applications or environments, and/or (d) aerospace applications or environments. where st products are not designed for such use, the purchaser shall use products at purchaser?s sole risk, even if st has been informed in writing of such usage, unless a product is expressly designated by st as being intended for ?automotive, automotive safety or medical? industry domains according to st product design specifications. products formally escc, qml or jan qualified are deemed suitable for use in aerospace by the corresponding governmental agency. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2013 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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