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april 2009 doc id 2145 rev 17 1/29 29 l78lxxab l78lxxac - l78lxxc positive voltage regulators features output current up to 100 ma output voltages of 3.3; 5; 6; 8; 9; 10; 12; 15; 18; 24 v thermal overload protection short circuit protection no external components are required available in either 5% (ac) or 10% (c) selection description the l78lxx series of three-terminal positive regulators employ internal current limiting and thermal shutdown, making them essentially indestructible. if adequate heat-sink is provided, they can deliver up to 100 ma output current. they are intended as fixed voltage regulators in a wide range of applications including local or on- card regulation for elimination of noise and distribution problems associated with single-point regulation. in addition, they can be used with power pass elements to make high-current voltage regulators. the l78lxx series used as zener diode/resistor combination replacement, offers an effective output impedance improvement of typically two orders of magnitude, along with lower quiescent current and lower noise. sot-89 to-92 so-8 table 1. device summary part numbers l78l33c l78l08ac l78l15c l78l33ac l78l08ab l78l15ac l78l33ab l78l09c l78l15ab l78l05c l78l09ac l78l18c l78l05ac l78l09ab l78l18ac l78l05ab l78l10ac l78l24c l78l06ac l78l12c l78l24ac l78l06ab l78l12ac l78l24ab l78l08c l78l12ab www.st.com
contents l78lxxab - l78lxxac - l78lxxc 2/29 doc id 2145 rev 17 contents 1 diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 typical performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6 typical application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 7 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8 order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 9 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
l78lxxab - l78lxxac - l78lxxc diagram doc id 2145 rev 17 3/29 1 diagram figure 1. schematic diagram
pin configuration l78lxxab - l78lxxac - l78lxxc 4/29 doc id 2145 rev 17 2 pin configuration figure 2. pin connection (top view, bottom view for to-92) sot-89 so-8 to-92 pin 1 = v out pin 2 = gnd pin 3 = v in figure 3. test circuits
l78lxxab - l78lxxac - l78lxxc maximum ratings doc id 2145 rev 17 5/29 3 maximum ratings table 2. absolute maximum ratings symbol parameter value unit v i dc input voltage v o = 3.3 to 9 v 30 v v o = 12 to 15 v 35 v o = 18 to 24 v 40 i o output current 100 ma p d power dissipation internally limited (1) 1. our so-8 package used for voltage regulator s is modified internally to have pins 2, 3, 6 and 7 electrically communed to the die attach flag. this particular frame de creases the total thermal resistance of the package and increases its ability to dissipate power when an appropriate area of copper on the prin ted circuit board is available for heat-sinking. the external dimensions are the same as for the standard so-8. mw t stg storage temperature range -65 to 150 c t op operating junction temperature range for l78l00ac 0 to 150 c for l78l00ab -40 to 125 table 3. thermal data symbol parameter so-8 to-92 sot-89 unit r thjc thermal resistance junction-case. (max) 20 15 c/w r thja thermal resistance junction-ambient. (max) 55 (1) 200 55 (1) c/w 1. considering 6 cm 2 of copper board heat-sink.
electrical characteristics l78lxxab - l78lxxac - l78lxxc 6/29 doc id 2145 rev 17 4 electrical characteristics refer to the test circuits, t j = 0 to 125 c, i o = 40 ma, c i = 0.33 f, c o = 0.1 f unless otherwise specified. table 4. electrical characteristics of l78l33c (v i = 8.3 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 3.036 3.3 3.564 v v o output voltage i o = 1 to 40 ma, v i = 5.3 to 20 v 2.97 3.63 v i o = 1 to 70 ma, v i = 8.3 v 2.97 3.63 v o line regulation v i = 5.3 to 20 v, t j = 25 c 150 mv v i = 6.3 to 20 v, t j = 25 c 100 v o load regulation i o = 1 to 100 ma, t j = 25 c 60 mv i o = 1 to 40 ma, t j = 25 c 30 i d quiescent current t j = 25 c 6 ma t j = 125 c 5.5 ma i d quiescent current change i o = 1 to 40 ma 0.2 ma v i = 6.3 to 20 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 40 v svr supply voltage rejection v i = 6.3 to 16.3 v, f = 120 hz i o = 40 ma, t j = 25 c 41 49 db v d dropout voltage 1.7 v
l78lxxab - l78lxxac - l78lxxc electrical characteristics doc id 2145 rev 17 7/29 table 5. electrical characteristics of l78l05c (v i = 10 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 4.6 5 5.4 v v o output voltage i o = 1 to 40 ma, v i = 7 to 20 v 4.5 5.5 v i o = 1 to 70 ma, v i = 10 v 4.5 5.5 v o line regulation v i = 8.5 to 20 v, t j = 25 c 200 mv v i = 9 to 20 v, t j = 25 c 150 v o load regulation i o = 1 to 100 ma, t j = 25 c 60 mv i o = 1 to 40 ma, t j = 25 c 30 i d quiescent current t j = 25 c 6 ma t j = 125 c 5.5 ma i d quiescent current change i o = 1 to 40 ma 0.2 ma v i = 8 to 20 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 40 v svr supply voltage rejection v i = 9 to 20 v, f = 120 hz i o = 40 ma, t j = 25 c 40 49 db v d dropout voltage 1.7 v table 6. electrical characteristics of l78l08c (v i = 14 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 7.36 8 8.64 v v o output voltage i o = 1 to 40 ma, v i = 8.5 to 20 v 7.2 8.8 v i o = 1 to 70 ma, v i = 12 v 7.2 8.8 v o line regulation v i = 8.5 to 20 v, t j = 25 c 200 mv v i = 9 to 20 v, t j = 25 c 150 v o load regulation i o = 1 to 100 ma, t j = 25 c 80 mv i o = 1 to 40 ma, t j = 25 c 40 i d quiescent current t j = 25 c 6 ma t j = 125 c 5.5 ma i d quiescent current change i o = 1 to 40 ma 0.2 ma v i = 8 to 20 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 60 v svr supply voltage rejection v i = 9 to 20 v, f = 120 hz i o = 40 ma, t j = 25 c 36 45 db v d dropout voltage 1.7 v
electrical characteristics l78lxxab - l78lxxac - l78lxxc 8/29 doc id 2145 rev 17 table 7. electrical characteristics of l78l09c (v i = 15 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 8.28 9 9.72 v v o output voltage i o = 1 to 40 ma, v i = 11.5 to 23 v 8.1 9.9 v i o = 1 to 70 ma, v i = 15 v 8.1 9.9 v o line regulation v i = 11.5 to 23 v, t j = 25 c 250 mv v i = 12 to 23 v, t j = 25 c 200 v o load regulation i o = 1 to 100 ma, t j = 25 c 80 mv i o = 1 to 40 ma, t j = 25 c 40 i d quiescent current t j = 25 c 6 ma t j = 125 c 5.5 ma i d quiescent current change i o = 1 to 40 ma 0.2 ma v i = 12 to 23 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 70 v svr supply voltage rejection v i = 12 to 23 v, f = 120 hz i o = 40 ma, t j = 25 c 36 44 db v d dropout voltage 1.7 v table 8. electrical characteristics of l78l10c (v i = 16 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 9.2 10 10.8 v v o output voltage i o = 1 to 40 ma, v i = 12.5 to 23 v 9 11 v i o = 1 to 70 ma, v i = 16 v 9 11 v o line regulation v i = 12.5 to 23 v, t j = 25 c 230 mv v i = 13 to 23 v, t j = 25 c 170 v o load regulation i o = 1 to 100 ma, t j = 25 c 80 mv i o = 1 to 40 ma, t j = 25 c 40 i d quiescent current t j = 25 c 6 ma t j = 125 c 5.5 ma i d quiescent current change i o = 1 to 40 ma 0.1 ma v i = 13 to 23 v 1.5 en output noise voltage b =10hz to 100khz, t j = 25 c 60 v svr supply voltage rejection v i = 14 to 23 v, f = 120hz i o = 40 ma, t j = 25 c 37 45 db v d dropout voltage 1.7 v
l78lxxab - l78lxxac - l78lxxc electrical characteristics doc id 2145 rev 17 9/29 table 9. electrical characteristics of l78l12c (v i = 19 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 11.1 12 12.9 v v o output voltage i o = 1 to 40 ma, v i = 14.5 to 27 v 10.8 13.2 v i o = 1 to 70 ma, v i = 19 v 10.8 13.2 v o line regulation v i = 14.5 to 27 v, t j = 25 c 250 mv v i = 16 to 27 v, t j = 25 c 200 v o load regulation i o = 1 to 100 ma, t j = 25 c 100 mv i o = 1 to 40 ma, t j = 25 c 50 i d quiescent current t j = 25 c 6.5 ma t j = 125 c 6 ma i d quiescent current change i o = 1 to 40 ma 0.2 ma v i = 16 to 27 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 80 v svr supply voltage rejection v i = 15 to 25 v, f = 120 hz i o = 40 ma, t j = 25 c 36 42 db v d dropout voltage 1.7 v table 10. electrical characteristics of l78l15c (v i = 23 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 13.8 15 16.2 v v o output voltage i o = 1 to 40 ma, v i = 17.5 to 30 v 13.5 16.5 v i o = 1 to 70 ma, v i = 23 v 13.5 16.5 v o line regulation v i = 17.5 to 30 v, t j = 25 c 300 mv v i = 20 to 30 v, t j = 25 c 250 v o load regulation i o = 1 to 100 ma, t j = 25 c 150 mv i o = 1 to 40 ma, t j = 25 c 75 i d quiescent current t j = 25 c 6.5 ma t j = 125 c 6 ma i d quiescent current change i o = 1 to 40 ma 0.2 ma v i = 20 to 30 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 90 v svr supply voltage rejection v i = 18.5 to 28.5 v, f = 120 hz i o = 40 ma, t j = 25 c 33 39 db v d dropout voltage 1.7 v
electrical characteristics l78lxxab - l78lxxac - l78lxxc 10/29 doc id 2145 rev 17 table 11. electrical characteristics of l78l18c (v i = 27 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 16.6 18 19.4 v v o output voltage i o = 1 to 40 ma, v i = 22 to 33 v 16.2 19.8 v i o = 1 to 70 ma, v i = 27 v 16.2 19.8 v o line regulation v i = 22 to 33 v, t j = 25 c 320 mv v i = 22 to 33 v, t j = 25 c 270 v o load regulation i o = 1 to 100 ma, t j = 25 c 170 mv i o = 1 to 40 ma, t j = 25 c 85 i d quiescent current t j = 25 c 6.5 ma t j = 125 c 6 ma i d quiescent current change i o = 1 to 40 ma 0.2 ma v i = 23 to 33 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 120 v svr supply voltage rejection v i = 23 to 33 v, f = 120 hz i o = 40 ma, t j = 25 c 32 38 db v d dropout voltage 1.7 v table 12. electrical characteristics of l78l24c (v i = 33 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 22.1 24 25.9 v v o output voltage i o = 1 to 40 ma, v i = 27 to 38 v 21.6 26.4 v i o = 1 to 70 ma, v i = 33 v 21.6 26.4 v o line regulation v i = 27 to 38 v, t j = 25 c 350 mv v i = 28 to 38 v, t j = 25 c 300 v o load regulation i o = 1 to 100 ma, t j = 25 c 200 mv i o = 1 to 40 ma, t j = 25 c 100 i d quiescent current t j = 25 c 6.5 ma t j = 125 c 6 ma i d quiescent current change i o = 1 to 40 ma 0.2 ma v i = 28 to 38 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 200 v svr supply voltage rejection v i = 29 to 35 v, f = 120 hz i o = 40 ma, t j = 25 c 30 37 db v d dropout voltage 1.7 v
l78lxxab - l78lxxac - l78lxxc electrical characteristics doc id 2145 rev 17 11/29 t j = 0 to 125 c for l78l33ac, t j = -40 to 125 c for l78l33ab. t j = 0 to 125 c for l78l05ac, t j = -40 to 125 c for l78l05ab. table 13. electrical characteristics of l78l33ab and l78l33ac (v i = 8.3 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 3.168 3.3 3.432 v v o output voltage i o = 1 to 40 ma, v i = 5.3 to 20 v 3.135 3.465 v i o = 1 to 70 ma, v i = 8.3 v 3.135 3.465 v o line regulation v i = 5.3 to 20 v, t j = 25 c 150 mv v i = 6.3 to 20 v, t j = 25 c 100 v o load regulation i o = 1 to 100 ma, t j = 25 c 60 mv i o = 1 to 40 ma, t j = 25 c 30 i d quiescent current t j = 25 c 6 ma t j = 125 c 5.5 ma i d quiescent current change i o = 1 to 40 ma 0.1 ma v i = 6.3 to 20 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 40 v svr supply voltage rejection v i = 6.3 to 16.3 v, f = 120 hz i o = 40 ma, t j = 25 c 41 49 db v d dropout voltage 1.7 v table 14. electrical characteristics of l78l05ab and l78l05ac (v i = 10 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 4.8 5 5.2 v v o output voltage i o = 1 to 40 ma, v i = 7 to 20 v 4.75 5.25 v i o = 1 to 70 ma, v i = 10 v 4.75 5.25 v o line regulation v i = 7 to 20 v, t j = 25 c 150 mv v i = 8 to 20 v, t j = 25 c 100 v o load regulation i o = 1 to 100 ma, t j = 25 c 60 mv i o = 1 to 40 ma, t j = 25 c 30 i d quiescent current t j = 25 c 6 ma t j = 125 c 5.5 ma i d quiescent current change i o = 1 to 40 ma 0.1 ma v i = 8 to 20 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 40 v svr supply voltage rejection v i = 8 to 18 v, f = 120 hz i o = 40 ma, t j = 25 c 41 49 db v d dropout voltage 1.7 v
electrical characteristics l78lxxab - l78lxxac - l78lxxc 12/29 doc id 2145 rev 17 t j = 0 to 125 c for l78l06ac, t j = -40 to 125 c for l78l06ab. t j = 0 to 125 c for l78l08ac, t j = -40 to 125 c for l78l08ab. table 15. electrical characteristics of l78l06ab and l78l06ac (v i = 12 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 5.76 6 6.24 v v o output voltage i o = 1 to 40 ma, v i = 8.5 to 20 v 5.7 6.3 v i o = 1 to 70 ma, v i = 12 v 5.7 6.3 v o line regulation v i = 8.5 to 20 v, t j = 25 c 150 mv v i = 9 to 20 v, t j = 25 c 100 v o load regulation i o = 1 to 100 ma, t j = 25 c 60 mv i o = 1 to 40 ma, t j = 25 c 30 i d quiescent current t j = 25 c 6 ma t j = 125 c 5.5 ma i d quiescent current change i o = 1 to 40 ma 0.1 ma v i = 9 to 20 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 50 v svr supply voltage rejection v i = 9 to 20 v, f = 120 hz i o = 40 ma, t j = 25 c 39 46 db v d dropout voltage 1.7 v table 16. electrical characteristics of l78l08ab and l78l08ac (v i = 14 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 7.68 8 8.32 v v o output voltage i o = 1 to 40 ma, v i = 10.5 to 23 v 7.6 8.4 v i o = 1 to 70 ma, v i = 14 v 7.6 8.4 v o line regulation v i = 10.5 to 23 v, t j = 25 c 175 mv v i = 11 to 23 v, t j = 25 c 125 v o load regulation i o = 1 to 100 ma, t j = 25 c 80 mv i o = 1 to 40 ma, t j = 25 c 40 i d quiescent current t j = 25 c 6 ma t j = 125 c 5.5 ma i d quiescent current change i o = 1 to 40 ma 0.1 ma v i = 11 to 23 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 60 v svr supply voltage rejection v i = 12 to 23 v, f = 120 hz i o = 40 ma, t j = 25 c 37 45 db v d dropout voltage 1.7 v
l78lxxab - l78lxxac - l78lxxc electrical characteristics doc id 2145 rev 17 13/29 t j = 0 to 125 c for l78l09ac, t j = -40 to 125 c for l78l09ab. t j = 0 to 125 c for l78l10ac, t j = -40 to 125 c for l78l10ab. table 17. electrical characteristics of l78l09ab and l78l09ac (v i = 15 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 8.64 9 9.36 v v o output voltage i o = 1 to 40 ma, v i = 11.5 to 23 v 8.55 9.45 v i o = 1 to 70 ma, v i = 15 v 8.55 9.45 v o line regulation v i = 11.5 to 23 v, t j = 25 c 225 mv v i = 12 to 23 v, t j = 25 c 150 v o load regulation i o = 1 to 100 ma, t j = 25 c 80 mv i o = 1 to 40 ma, t j = 25 c 40 i d quiescent current t j = 25 c 6 ma t j = 125 c 5.5 ma i d quiescent current change i o = 1 to 40 ma 0.1 ma v i = 12 to 23 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 70 v svr supply voltage rejection v i = 12 to 23 v, f = 120 hz i o = 40 ma, t j = 25 c 37 44 db v d dropout voltage 1.7 v table 18. electrical characteristics of l78l10ac (v i = 16 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 9.6 10 10.4 v v o output voltage i o = 1 to 40 ma, v i = 12.5 to 23 v 9.5 10.5 v i o = 1 to 70 ma, v i = 16 v 9.5 10.5 v o line regulation v i = 12.5 to 23 v, t j = 25 c 230 mv v i = 13 to 23 v, t j = 25 c 170 v o load regulation i o = 1 to 100 ma, t j = 25 c 80 mv i o = 1 to 40 ma, t j = 25 c 40 i d quiescent current t j = 25 c 6 ma t j = 125 c 5.5 ma i d quiescent current change i o = 1 to 40 ma 0.1 ma v i = 13 to 23 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 60 v svr supply voltage rejection v i = 14 to 23 v, f = 120 hz i o = 40 ma, t j = 25 c 37 45 db v d dropout voltage 1.7 v
electrical characteristics l78lxxab - l78lxxac - l78lxxc 14/29 doc id 2145 rev 17 t j = 0 to 125 c for l78l12ac, t j = -40 to 125 c for l78l12ab. t j = 0 to 125 c for l78l15ac, t j = -40 to 125 c for l78l15ab. table 19. electrical characteristics of l78l12ab and l78l12ac (v i = 19 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 11.5 12 12.5 v v o output voltage i o = 1 to 40 ma, v i = 14.5 to 27 v 11.4 12.6 v i o = 1 to 70 ma, v i = 19 v 11.4 12.6 v o line regulation v i = 14.5 to 27 v, t j = 25 c 250 mv v i = 16 to 27 v, t j = 25 c 200 v o load regulation i o = 1 to 100 ma, t j = 25 c 100 mv i o = 1 to 40 ma, t j = 25 c 50 i d quiescent current t j = 25 c 6.5 ma t j = 125 c 6 ma i d quiescent current change i o = 1 to 40 ma 0.1 ma v i = 16 to 27 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 80 v svr supply voltage rejection v i = 15 to 25 v, f = 120 hz i o = 40 ma, t j = 25 c 37 42 db v d dropout voltage 1.7 v table 20. electrical characteristics of l78l15ab and l78l15ac (v i = 23 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 14.4 15 15.6 v v o output voltage i o = 1 to 40 ma, v i = 17.5 to 30 v 14.25 15.75 v i o = 1 to 70 ma, v i = 23 v 14.25 15.75 v o line regulation v i = 17.5 to 30 v, t j = 25 c 300 mv v i = 20 to 30 v, t j = 25 c 250 v o load regulation i o = 1 to 100 ma, t j = 25 c 150 mv i o = 1 to 40 ma, t j = 25 c 75 i d quiescent current t j = 25 c 6.5 ma t j = 125 c 6 ma i d quiescent current change i o = 1 to 40 ma 0.1 ma v i = 20 to 30 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 90 v svr supply voltage rejection v i = 18.5 to 28.5 v, f = 120 hz i o = 40 ma, t j = 25 c 34 39 db v d dropout voltage 1.7 v
l78lxxab - l78lxxac - l78lxxc electrical characteristics doc id 2145 rev 17 15/29 t j = 0 to 125 c for l78l18ac, t j = -40 to 125 c for l78l18ab. t j = 0 to 125 c for l78l24ac, t j = -40 to 125 c for l78l24ab. table 21. electrical characteristics of l78l18ac (v i = 27 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 17.3 18 18.7 v v o output voltage i o = 1 to 40 ma, v i = 22 to 33 v 17.1 18.9 v i o = 1 to 70 ma, v i = 27 v 17.1 18.9 v o line regulation v i = 22 to 33 v, t j = 25 c 320 mv v i = 22 to 33 v, t j = 25 c 270 v o load regulation i o = 1 to 100 ma, t j = 25 c 170 mv i o = 1 to 40 ma, t j = 25 c 85 i d quiescent current t j = 25 c 6.5 ma t j = 125 c 6 ma i d quiescent current change i o = 1 to 40 ma 0.1 ma v i = 23 to 33 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 120 v svr supply voltage rejection v i = 23 to 33 v, f = 120 hz i o = 40 ma, t j = 25 c 33 38 db v d dropout voltage 1.7 v table 22. electrical characteristics of l78l24ab and l78l24ac (v i = 33 v) symbol parameter test conditions min. typ. max. unit v o output voltage t j = 25 c 23 24 25 v v o output voltage i o = 1 to 40 ma, v i = 27 to 38 v 22.8 25.2 v i o = 1 to 70 ma, v i = 33 v 22.8 25.2 v o line regulation v i = 27 to 38 v, t j = 25 c 350 mv v i = 28 to 38 v, t j = 25 c 300 v o load regulation i o = 1 to 100 ma, t j = 25 c 200 mv i o = 1 to 40 ma, t j = 25 c 100 i d quiescent current t j = 25 c 6.5 ma t j = 125 c 6 ma i d quiescent current change i o = 1 to 40 ma 0.1 ma v i = 28 to 38 v 1.5 en output noise voltage b =10 hz to 100 khz, t j = 25 c 200 v svr supply voltage rejection v i = 29 to 33 v, f = 120 hz i o = 40 ma, t j = 25 c 31 37 db v d dropout voltage 1.7 v
typical performance l78lxxab - l78lxxac - l78lxxc 16/29 doc id 2145 rev 17 5 typical performance figure 4. l78l05/12 output voltage vs. ambient temperature figure 5. l78l05/12/24 load characteristics figure 6. l78l05/12/24 thermal shutdown figure 7. l78l05/12 quiescent current vs. output current figure 8. l78l05 quiescent current vs. input voltage figure 9. l78l05/12/24 output characteristics
l78lxxab - l78lxxac - l78lxxc typical performance doc id 2145 rev 17 17/29 figure 10. l78l05/12/24 ripple rejection figure 11. l78l05 dropout characteristics figure 12. l78lxx short circuit output current
typical application l78lxxab - l78lxxac - l78lxxc 18/29 doc id 2145 rev 17 6 typical application figure 13. high output current short circuit protected figure 14. edit boost circuit figure 15. current regulator
l78lxxab - l78lxxac - l78lxxc typical application doc id 2145 rev 17 19/29 figure 16. adjustable output regulator
package mechanical data l78lxxab - l78lxxac - l78lxxc 20/29 doc id 2145 rev 17 7 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 and product status are available at: www.st.com . ecopack ? is an st trademark.
l78lxxab - l78lxxac - l78lxxc package mechanical data doc id 2145 rev 17 21/29 dim. mm. inch. min. typ. max. min. typ. max. a1. 3 5 1.75 0.05 3 0.06 9 a1 0.10 0.25 0.04 0.010 a2 1.10 1.65 0.04 3 0.065 b0. 33 0.51 0.01 3 0.020 c0.1 9 0.25 0.007 0.010 d4. 8 0 5.00 0.1 89 0.1 9 7 e 3 . 8 0 4.00 0.150 0.157 e 1.27 0.050 h5. 8 0 6.20 0.22 8 0.244 h 0.25 0.50 0.010 0.020 l 0.40 1.27 0.016 0.050 k 8 (m a x.) ddd 0.1 0.04 s o- 8 mechanical data 001602 3 /c
package mechanical data l78lxxab - l78lxxac - l78lxxc 22/29 doc id 2145 rev 17 dim. mm. mil s . min. typ. max. min. typ. max. a 1.4 1.6 55.1 6 3 .0 b 0.44 0.56 17. 3 22.0 b1 0. 3 6 0.4 8 14.2 1 8 . 9 c0. 3 5 0.44 1 3 . 8 17. 3 c1 0. 3 5 0.44 1 3 . 8 17. 3 d 4.4 4.6 17 3 .2 1 8 1.1 d1 1.62 1. 83 6 3 . 8 72.0 e2.2 9 2.6 9 0.2 102.4 e 1.42 1.57 55. 9 61. 8 e1 2. 9 2 3 .07 115.0 120. 9 h 3 . 9 4 4.25 155.1 167. 3 l0. 89 1.2 3 5.0 47.2 s ot- 8 9 mechanical data p025h
l78lxxab - l78lxxac - l78lxxc package mechanical data doc id 2145 rev 17 23/29 dim. mm. mil s . min. typ. max. min. typ. max. a4. 3 24. 9 5 170.1 1 9 4. 9 b 0. 3 6 0.51 14.2 20.1 d 4.45 4. 9 5 175.2 1 9 4. 9 e 3 . 3 0 3 . 9 412 9 . 9 155.1 e 2.41 2.67 9 4. 9 105.1 e1 1.14 1.40 44. 9 55.1 l 12.7 15.4 9 500.0 60 9 . 8 r 2.16 2.41 8 5.0 9 4. 9 s 10. 9 2 1.52 3 6.2 5 9 . 8 w 0.41 0.56 16.1 22.0 5 5 to-92 mechanical data 01027 8 2/d
package mechanical data l78lxxab - l78lxxac - l78lxxc 24/29 doc id 2145 rev 17 dim. mm. inch. min. typ. max. min. typ. max. a 33 0 12. 99 2 c 12. 8 1 3 .2 0.504 0.51 9 d 20.2 0.7 9 5 n60 2. 3 62 t 22.4 0. 88 2 ao 8 .1 8 .5 0. 3 1 9 0. 33 5 bo 5.5 5. 9 0.216 0.2 3 2 ko 2.1 2. 3 0.0 8 2 0.0 9 0 po 3 . 9 4.1 0.15 3 0.161 p7. 98 .1 0. 3 11 0. 3 1 9 tape & reel s o- 8 mechanical data
l78lxxab - l78lxxac - l78lxxc package mechanical data doc id 2145 rev 17 25/29 dim. mm. inch. min. typ. max. min. typ. max. a1 8 0 7.0 8 6 c 12. 8 1 3 .0 1 3 .2 0.504 0.512 0.51 9 d 20.2 0.7 9 5 n60 2. 3 62 t 14.4 0.567 ao 4.70 4. 8 04. 9 0 0.1 8 5 0.1 89 0.1 93 bo 4. 3 0 4.40 4.50 0.16 9 0.17 3 0.177 ko 1.70 1. 8 01. 9 0 0.067 0.071 0.075 po 3 . 9 4.0 4.1 0.15 3 0.157 0.161 p7. 98 .0 8 .1 0. 3 11 0. 3 15 0. 3 1 9 tape & reel s ot- 8 9 mechanical data
package mechanical data l78lxxab - l78lxxac - l78lxxc 26/29 doc id 2145 rev 17 dim. mm. inch. min. typ. max. min. typ. max. a1 4. 8 0 0.1 89 t 3 . 8 0 0.150 t1 1.60 0.06 3 t2 2. 3 0 0.0 9 1 d0.4 8 0.01 9 p0 12.5 12. 9 0.4 9 2 0.50 8 p2 5.65 7.05 0.222 0.27 8 f1, f2 2.44 2.54 2. 9 4 0.0 9 6 0.100 0.116 delt a h 2 0.07 9 w 17.5 1 8 .00 1 9 .0 0.6 89 0.70 9 0.74 8 w0 5.7 6. 3 0.224 0.24 8 w1 8 .5 9 .25 0. 33 50. 3 64 w2 0.50 0.20 h1 8 .50 1 8 .70 0.72 8 0.726 h0 15.50 16.50 0.610 0.650 h1 25.00 0. 98 4 d0 3 . 8 4.2 0.150 0.165 t0. 9 00.0 3 5 l1 3 0.11 8 delt a p1 0.0 39 u 50 1. 9 6 8 1 3 60 14.17 3 2 3 01.1 8 1 tape & reel for to-92 mechanical data w w1 w0 w2 a1 d d0 h1 h h0 l l1 f1 f2 p2 p0 delt a p delt a h t2 t1 t t drawing not in s cale
l78lxxab - l78lxxac - l78lxxc order codes doc id 2145 rev 17 27/29 8 order codes table 23. order codes part numbers packages output voltages so-8 to92 (bag) (1) 1. available in ammopak with the suffix "-ap" or in tape and r eel with the suffix "tr". please note that in these cases pins ar e shaped according to tape and reel specifications. sot-89 l78l33c l78l33cd-tr 3.3 v l78l33ac l78l33acd13tr l78l33acz l78l33acutr 3.3 v l78l33ab l78l33abd-tr l78l33abz l78l33abutr 3.3 v l78l05c l78l05cd13tr l78l05cz 5 v l78l05ac l78l05acd13tr l78l05acz l78l05acutr 5 v l78l05ab l78l05abd13tr l78l05abz l78l05abutr 5 v l78l06ac l78l06acd13tr l78l06acz l78l06acutr 6 v l78l06ab l78l06abd13tr l78l06abz l78l06abutr 6 v l78l08c l78l08cd13tr 8 v l78l08ac l78l08acd13tr l78l08acz l78l08acutr 8 v l78l08ab l78l08abd13tr l78l08abz l78l08abutr 8 v l78l09c l78l09cd13tr 9 v l78l09ac l78l09acd13tr l78l09acz l78l09acutr 9 v l78l09ab l78l09abd13tr l78l09abz l78l09abutr 9 v l78l10ac l78l10acutr 10 v l78l12c l78l12cd13tr 12 v l78l12ac l78l12acd13tr l78l12acz l78l12acutr 12 v l78l12ab l78l12abd-tr l78l12abz l78l12abutr 12 v l78l15c l78l15cd-tr 15 v l78l15ac l78l15acd13tr l78l15acz l78l15acutr 15 v l78l15ab l78l15abz l78l15abutr 15 v l78l18c l78l18cd13tr 18 v l78l18ac l78l18acd13tr l78l18acutr 18 v l78l24c l78l24cd-tr 24 v l78l24ac l78l24acd-tr l78l24acz l78l24acutr 24 v l78l24ab l78l24abd13tr l78l24abz 24 v
revision history l78lxxab - l78lxxac - l78lxxc 28/29 doc id 2145 rev 17 9 revision history table 24. document revision history date revision changes 14-mar-2005 9 add tape and reel for to-92. 15-mar-2005 10 add note on table 3. 23-dec-2005 11 mistake on ordering table in header. 12-sep-2006 12 order codes updated. 07-jun-2007 13 order codes updated. 18-sep-2007 14 added ta b l e 1 in cover page. 15-jul-2008 15 modified: table 1 on page 1 and table 23 on page 27 . 18-aug-2008 16 modified figure 12 on page 17 . 03-apr-2009 17 added: r thja value for sot-89 table 3 on page 5 .
l78lxxab - l78lxxac - l78lxxc doc id 2145 rev 17 29/29 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. unless expressly approved in writing by an authorized st representative, st products are not recommended, authorized or warranted for use in milita ry, air craft, space, life saving, or life sustaining applications, nor in products or systems where failure or malfunction may result in personal injury, death, or severe property or environmental damage. st products which are not specified as "automotive grade" may only be used in automotive applications at user?s own risk. 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. ? 2009 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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