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as78xxa document number: ds36562 rev. 3 - 2 1 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated 1a 3-terminal positi ve voltage regulator description the as78xxa series are three term inal positive voltage regulators designed for a wide variety of applications including local, on-card regulation. the as78xxa are complete with inte rnal current limiting, thermal shutdown protection, and safe-area compensation which make them virtually immune from output over load. if adequate heat sinking is provided, these regulators can de liver output currents up to 1a. the as78xxa are available in to-252 -2 (3), to-252-2 (4), to-252-2 (5), to-220-3 and to-220f-3 packages. applications ? high efficiency linear regulator ? post regulation for switching supply ? microprocessor power supply ? mother board features ? output current up to 1a ? fixed output voltages of 5v, 6v, 8v, 9v, 12v, 15v and 18v ? output voltage accuracy of 4% over the full temperature range ? internal short circuit current limiting ? internal thermal overload protection ? output transistor safe-area protection ? low load regulation ? stable performance in high temperature ? to-220-3 and to-220f-3 ? lead-free finish; rohs compliant (notes 1 & 2) ? lead-free packages: to-252-2 (3), to-252-2 (4), to-252-2 (5) ? totally lead-free; rohs compliant (notes 4 & 2) ? available in ?green? packages: to-220-3 and to-220f-3 ? lead-free finish; rohs compliant (notes 1 & 2) ? halogen and antimony free. ?green? device (note 3) ? lead-free packages, available in ?green? molding compound: to-252-2 (3), to-252-2 (4), to-252-2 (5) ? totally lead-free & fully rohs compliant (notes 4 & 2) ? halogen and antimony free. ?green? device (note 3) notes: 1. eu directive 2002/95/ec (rohs) & 2011/65/eu (rohs 2) compliant. all applic able rohs exemptions applied. 2. see http://www.diodes.com/quality/lead_free.html for more in formation about diodes incorporated?s definitions of halogen- a nd antimony-free, "green" and lead-free. 3. halogen- and antimony-free "green? products are defin ed as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total br + cl) and <1000ppm antimony compounds. 4. no purposely added lead. fully eu directive 2002 /95/ec (rohs) & 2011/65/ eu (rohs 2) compliant. pin assignments t package t package (to-220-3) (option 1) (to-220-3) (option 2) t package tf package (to-220-3) (option 3) (to-220f-3) 1 2 3 input output gnd 1 2 3 input output gnd 1 2 3 input output gnd 1 2 3 output input gnd
as78xxa document number: ds36562 rev. 3 - 2 2 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated pin assignments (cont.) d package (to-252-2 (3)) (option 1) (to-252-2 (3)) (option 2) (to-252-2 (4)) (to-252-2 (5)) typical applications circuit 0.1 ? f 0. 33 ? f as78xxa gnd input output v in v out 1 2 3 pin descriptions pin number pin name function 1 input voltage input 2 gnd ground 3 output voltage output 1 2 3 input output gnd 1 2 3 output gnd input 1 2 3 input output gnd 1 2 3 output gnd input
as78xxa document number: ds36562 rev. 3 - 2 3 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated functional block diagram r9 r7 r4 r3 r5 c1 r11 r19 r18 r14 r15 d1 zener r16 r17 r20 r23 r21 r2 2 output input r12 r2 r1 q23 q6 q3 q9 q14 q18 q21 q22 q24 q16 q2 q1 q4 q11 q7 q10 q8 q5 r8 r10 r6 r13 c2 q12 q15 q13 q17 q19 q20 gnd 1 3 2
as78xxa document number: ds36562 rev. 3 - 2 4 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated absolute maximum ratings (note 5) symbol parameter rating unit v in input voltage 36 v t lead lead temperature (soldering, 10sec) +260 c p d power dissipation internally limited w t j operating junction te mperature +150 c t stg storage temperature range -65 to +150 c ? ja thermal resistance to-220-3 60 c/w to-252-2 (3)/to-252-2 (4)/to-252-2 (5) 100 to-220f-3 60 esd esd (human body model) 6000 v esd esd (machine model) 500 v note 5: stresses greater than those list ed under ?absolute maximum ratings? may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at thes e or any other conditions beyond those indi cated under ?recommended operating conditi ons? is not implied. exposure to ?absolute maximum ratings? for extended periods may affect device reliability. recommended operating conditions symbol parameter min max unit v in input voltage AS7805A ? 25 v as7806a ? 26 as7808a ? 28 as7809a ? 29 as7812a ? 32 as7815a ? 32 as7818a ? 32 t j operating junction temper ature range -40 +125 c
as78xxa document number: ds36562 rev. 3 - 2 5 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated electrical characteristics AS7805A (@ v in = 10v, i out = 1a, t j = -40 to +125c, unless otherwise specified.) symbol parameter conditions min typ max unit v out output voltage t j = +25c 4.9 5 5.1 v i out = 5ma to 1a, v in = 7.5v to 20v, p d 15w 4.8 ? 5.2 v rline line regulation v in = 7.5v to 20v, i out = 500ma, t j = +25c ? 25 50 mv v rload load regulation v in = 10v, i out = 5ma to 1a, t j = +25c ? 20 50 mv i q quiescent current v in = 10v, i out = 0 ? 3.2 6 ma i q quiescent current change v in = 8v to 25v, i out = 500ma, t j = +25c ? 0.3 0.8 ma i out = 5ma to 1a, t j = +25c ? 0.08 0.5 psrr ripple rejection v in = 8v to 18v, f = 120hz, i out = 500ma ? 70 ? db v drop dropout voltage v out = 1%, i out = 1a, t j = +25c ? 2 ? v n o output noise voltage f = 10hz to 100khz, t a = +25c ? 10 ? v/v o r o output resistance f = 1khz ? 10 ? m ? i sc short circuit current v in = 35v, t a = +25c ? 0.05 ? a i pk peak output current v in = 10v, t j = +25c ? 2.2 ? a v out / t output voltage temperature coefficient ? ? 0.4 ? mv/c ( v out /v out )/ t ? ? 80 ? ppm/c jc thermal resistance to-220-3 ? 9 ? c/w to-252-2 (3)/ to-252-2 (4)/ to-252-2 (5) ? 16 ? to-220f-3 ? 9 ?
as78xxa document number: ds36562 rev. 3 - 2 6 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated electrical characteristics (cont.) as7806a (@ v in = 11v, i out = 1a, t j = -40 to +125c, unless otherwise specified.) symbol parameter conditions min typ max unit v out output voltage t j = +25c 5.88 6 6.12 v i out = 5ma to 1a, v in = 8.6v to 21v, p d 15w 5.76 ? 6.24 v rline line regulation v in = 8.6v to 21v, i out = 500ma, t j = +25c ? 25 60 mv v rload load regulation v in = 11v, i out = 5ma to 1a, t j = +25c ? 20 60 mv i q quiescent current v in = 11v, i out = 0 ? 3.2 6 ma i q quiescent current change v in = 8.6v to 21v, i out = 500ma, t j = +25c ? 0.3 0.8 ma i out = 5ma to 1a, t j = +25c ? 0.08 0.5 psrr ripple rejection v in = 9.5v to 19.5v, f = 120hz, i out = 500ma ? 65 ? db v drop dropout voltage v out = 1%, i out = 1a, t j = +25c ? 2 ? v n o output noise voltage f = 10hz to 100khz, t a = 25c ? 10 ? v/v o r o output resistance f = 1khz ? 10 ? m ? i sc short circuit current v in = 35v, t a = +25c ? 0.2 ? a i pk peak output current v in = 11v, t j = +25c ? 2.2 ? a v out / t output voltage temperature coefficient ? ? 0.5 ? mv/c ( v out /v out )/ t ? ? 80 ? ppm/c jc thermal resistance to-220-3 ? 9 ? c/w to-252-2 (3)/ to-252-2 (4)/ to-252-2 (5) ? 16 ? to-220f-3 ? 9 ?
as78xxa document number: ds36562 rev. 3 - 2 7 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated electrical characteristics (cont.) as7808a (@v in = 14v, i out = 1a, t j = -40 to +125c, unless otherwise specified.) symbol parameter conditions min typ max unit v out output voltage t j = +25c 7.84 8 8.16 v i out = 5ma to 1a, v in = 10.6v to 23v, p d 15w 7.7 ? 8.3 v rline line regulation v in = 10.6v to 23v, i out = 500ma, t j = +25c ? 25 75 mv v rload load regulation v in = 14v, i out = 5ma to 1a, t j = +25c ? 25 75 mv i q quiescent current v in = 14v, i out = 0 ? 3.2 6 ma i q quiescent current change v in = 10.6v to 23v, i out = 500ma, t j = +25c ? 0.3 0.8 ma i out = 5ma to 1a, t j = +25c ? 0.08 0.5 psrr ripple rejection v in = 11.5v to 21.5v, f = 120hz, i out = 500ma ? 62 ? db v drop dropout voltage v out = 1%, i out = 1a, t j = +25c ? 2 ? v n o output noise voltage f = 10hz to 100khz, t a = +25c ? 10 ? v/v o r o output resistance f = 1khz ? 10 ? m ? i sc short circuit current v in = 35v, t a = +25c ? 0.2 ? a i pk peak output current v in = 14v, t j = +25c ? 2.2 ? a v out / t output voltage temperature coefficient ? ? 0.64 ? mv/c ( v out /v out )/ t ? ? 80 ? ppm/c jc thermal resistance to-220-3 ? 9 ? c/w to-252-2 (3)/ to-252-2 (4)/ to-252-2 (5) ? 16 ? to-220f-3 ? 9 ?
as78xxa document number: ds36562 rev. 3 - 2 8 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated electrical characteristics (cont.) as7809a (@ v in = 15v, i out = 1a, t j = -40 to +125c, unless otherwise specified.) symbol parameter conditions min typ max unit v out output voltage t j = +25c 8.82 9 9.18 v i out = 5ma to 1a, v in = 11.5v to 23v, p d 15w 8.65 ? 9.35 v rline line regulation v in = 11.5v to 23v, i out = 500ma, t j = +25c ? 25 90 mv v rload load regulation v in = 14v, i out = 5ma to 1a, t j = +25c ? 25 100 mv i q quiescent current v in = 15v, i out = 0 ? 3.2 6 ma i q quiescent current change v in = 11.5v to 23v, i out = 500ma, t j = +25c ? 0.3 0.8 ma i out = 5ma to 1a, t j = +25c ? 0.08 0.5 psrr ripple rejection v in = 11.5v to 21.5v, f = 120hz, i out = 500ma ? 61 ? db v drop dropout voltage v out = 1%, i out = 1a, t j = +25c ? 2 ? v n o output noise voltage f = 10hz to 100khz, t a = +25c ? 10 ? v/v o r o output resistance f = 1khz ? 10 ? m ? i sc short circuit current v in = 35v, t a = +25c ? 0.2 ? a i pk peak output current v in = 15v, t j = +25c ? 2.2 ? a v out / t output voltage temperature coefficient ? ? 0.72 ? mv/c ( v out /v out )/ t ? ? 80 ? ppm/c jc thermal resistance to-220-3 ? 9 ? c/w to-252-2 (3)/ to-252-2 (4)/ to-252-2 (5) ? 16 ? to-220f-3 ? 9 ?
as78xxa document number: ds36562 rev. 3 - 2 9 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated electrical characteristics (cont.) as7812a (@ v in = 19v, i out = 1a, t j = -40 to +125c, unless otherwise specified.) symbol parameter conditions min typ max unit v out output voltage t j = +25c 11.75 12 12.25 v i out = 5ma to 1a, v in = 14.8v to 27v, p d 15w 11.5 ? 12.5 v rline line regulation v in = 14.8v to 27v, i out = 500ma, t j = +25c ? 25 120 mv v rload load regulation v in = 19v, i out = 5ma to 1a, t j = 25c ? 40 120 mv i q quiescent current v in = 19v, i out = 0 ? 3.4 6 ma i q quiescent current change v in = 14.8v to 30v, i out = 500ma, t j = 25c ? 0.3 0.8 ma i out = 5ma to 1a, t j = +25c ? 0.08 0.5 psrr ripple rejection v in = 15v to 25v, f = 120hz, i out = 500ma ? 60 ? db v drop dropout voltage v out = 1%, i out = 1a, t j = +25c ? 2 ? v n o output noise voltage f = 10hz to 100khz, t a = +25c ? 10 ? v/v o r o output resistance f = 1khz ? 11 ? m ? i sc short circuit current v in = 35v, t a = +25c ? 0.2 ? a i pk peak output current v in = 18v, t j = +25c ? 2.2 ? a v out / t output voltage temperature coefficient ? ? 0.96 ? mv/c ( v out /v out )/ t ? ? 80 ? ppm/c jc thermal resistance to-220-3 ? 9 ? c/w to-252-2 (3)/ to-252-2 (4)/ to-252-2 (5) ? 16 ? to-220f-3 ? 9 ?
as78xxa document number: ds36562 rev. 3 - 2 10 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated electrical characteristics (cont.) as7815a (@ v in = 23v, i out = 1a, t j = -40 to +125c, unless otherwise specified.) symbol parameter conditions min typ max unit v out output voltage t j = +25c 14.7 15 15.3 v i out = 5ma to 1a, v in = 17.9v to 30v, p d 15w 14.4 ? 15.6 v rline line regulation v in = 17.9v to 30v, i out = 500ma, t j = +25c ? 35 150 mv v rload load regulation v in = 23v, i out = 5ma to 1a, t j = +25c ? 70 150 mv i q quiescent current v in = 23v, i out = 0 ? 3.4 6 ma i q quiescent current change v in = 17.9v to 30v, i out = 500ma, t j = +25c ? 0.3 0.8 ma i out = 5ma to 1a, t j = +25c ? 0.08 0.5 psrr ripple rejection v in = 18.5v to 28.5v, f = 120hz, i out = 500ma ? 58 ? db v drop dropout voltage v out = 1%, i out = 1a, t j = +25c ? 2 ? v n o output noise voltage f = 10hz to 100khz, t a = +25c ? 10 ? v/v o r o output resistance f = 1khz ? 11 ? m ? i sc short circuit current v in = 35v, t a = +25c ? 0.2 ? a i pk peak output current v in = 21v, t j = +25c ? 2.2 ? a v out / t output voltage temperature coefficient ? ? 1.2 ? mv/c ( v out /v out )/ t ? ? 80 ? ppm/c jc thermal resistance to-220-3 ? 9 ? c/w to-252-2 (3)/ to-252-2 (4)/ to-252-2 (5) ? 16 ? to-220f-3 ? 9 ?
as78xxa document number: ds36562 rev. 3 - 2 11 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated electrical characteristics (cont.) as7818a (@ v in = 27v, i out = 1a, t j = -40 to +125c, unless otherwise specified.) symbol parameter conditions min typ max unit v out output voltage t j = +25c 17.64 18 18.36 v i out = 5ma to 1a, v in = 21v to 33v, p d 15w 17.3 ? 18.7 v rline line regulation v in = 21v to 33v, i out = 500ma, t j = +25c ? 45 180 mv v rload load regulation v in = 27v, i out = 5ma to 1a, t j = +25c ? 85 180 mv i q quiescent current v in = 27v, i out = 0 ? 3.6 6 ma i q quiescent current change v in = 21v to 33v, i out = 500ma, t j = +25c ? 0.3 0.8 ma i out = 5ma to 1a, t j = +25c ? 0.08 0.5 psrr ripple rejection v in = 22v to 32v, f = 120hz, i out = 500ma ? 57 ? db v drop dropout voltage v out = 1%, i out = 1a, t j = +25c ? 2 ? v n o output noise voltage f = 10hz to 100khz, t a = +25c ? 10 ? v/v o r o output resistance f = 1khz ? 11 ? m ? i sc short circuit current v in = 35v, t a = +25c ? 0.2 ? a i pk peak output current v in = 24v, t j = +25c ? 2.2 ? a v out / t output voltage temperature coefficient ? ? 1.44 ? mv/c ( v out /v out )/ t ? ? 80 ? ppm/c jc thermal resistance to-220-3 ? 9 ? c/w to-252-2 (3)/ to-252-2 (4)/ to-252-2 (5) ? 16 ? to-220f-3 ? 9 ?
as78xxa document number: ds36562 rev. 3 - 2 12 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated performance characteristics peak output current vs. input/output differential vo ltage output voltage vs. junction temperature output voltage vs. output current output voltage vs. input voltage quiescent current vs. junction temperature ripple rejection vs. frequency 3 6 9 12 15 18 21 24 0.0 0.5 1.0 1.5 2.0 2.5 t j =-40 o c t j =25 o c t j =125 o c peak output current (a) v in -v out (v) AS7805A -40 -20 0 20 40 60 80 100 120 4.850 4.875 4.900 4.925 4.950 4.975 5.000 5.025 5.050 AS7805A v in =10v i out =10ma i out =1a output voltage (v) junction temperature ( o c) 0 200 400 600 800 1000 1200 1400 4.850 4.875 4.900 4.925 4.950 4.975 5.000 5.025 5.050 AS7805A v in =10v, t j =25 o c output voltage (v) output current (ma) 8 1012141618202224 4.850 4.875 4.900 4.925 4.950 4.975 5.000 5.025 5.050 AS7805A i out =500ma, t j =25 o c i out =500ma, t j =75 o c i out =1a, t j =25 o c output voltage (v) input voltage (v) -40 -20 0 20 40 60 80 100 120 0 1 2 3 4 5 6 AS7805A v in =10v, i out =0 quiescent current (ma) junction temperature ( o c) 10 100 1k 10k 100k 1m 0 20 40 60 80 100 ripple rejection (db) frequency (hz) AS7805A
as78xxa document number: ds36562 rev. 3 - 2 13 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated performance characteristics (cont.) dropout voltage vs. junction temperature power dissipation vs. junction temperature line transient load transient (conditions: i out = 500ma, c out = 0.1f) (conditions: v in = 10v, c in = 0.33f, c out = 0.1f) i out (1a /div ) 100 0 ? v out (1 0 0 m v /d i v) 0 1 as 7 8 0 5a 0 .0 05a 2 -1 -100 -200 time (100s/div) time (40s/div) -40 -20 0 20 40 60 80 100 120 0.0 0.5 1.0 1.5 2.0 2.5 AS7805A i out =100ma i out =500ma i out =1a dropout voltage (v) junction temperature ( o c) -40-20 0 20406080100120 0 5 10 15 20 25 30 AS7805A package: to-220-3 heatsink: 60*43mm 2 power dissipation (w) junction temperature ( o c) ? v out (50mv/div ) 0 -50 v in (5v/d iv) AS7805A 10 15 -100 -150 20 25
as78xxa document number: ds36562 rev. 3 - 2 14 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated ordering information as78xxa - circuit type package temperature range part number marking id packing type lead free green lead free green to-220-3 -40 to +125 ? c AS7805At-e1 AS7805At-g1 AS7805At-e1 AS7805At-g1 tube as7806at-e1 as7806at-g1 as7806at-e1 as7806at-g1 tube as7808at-e1 as7808at-g1 as7808at-e1 as7808at-g1 tube as7809at-e1 as7809at-g1 as7809at-e1 as7809at-g1 tube as7812at-e1 as7812at-g1 as7812at-e1 as7812at-g1 tube as7815at-e1 as7815at-g1 as7815at-e1 as7815at-g1 tube as7818at-e1 as7818at-g1 as7818at-e1 as7818at-g1 tube to-220f-3 -40 to +125 ? c AS7805Atf-e1 AS7805Atf-g1 AS7805Atf-e1 AS7805Atf-g1 tube as7806atf-e1 as7806atf-g1 as7806atf-e1 as7806atf-g1 tube as7808atf-e1 as7808atf-g1 as7808atf-e1 as7808atf-g1 tube as7809atf-e1 as7809atf-g1 as7809atf-e1 as7809atf-g1 tube as7812atf-e1 as7812atf-g1 as7812atf-e1 as7812atf-g1 tube as7815atf-e1 as7815atf-g1 as7815atf-e1 as7815atf-g1 tube as7818atf-e1 as7818atf-g1 as7818atf-e1 as7818atf-g1 tube to-252-2 (3)/ to-252-2 (4)/ to-252-2 (5) -40 to +125 ? c AS7805Adtr-e1 AS7805Adtr-g1 AS7805Ad-e1 AS7805Ad-g1 tape & reel as7806adtr-e1 as7806adtr-g1 as7806ad-e1 as7806ad-g1 tape & reel as7808adtr-e1 as7808adtr-g1 as7808ad-e1 as7808ad-g1 tape & reel as7809adtr-e1 as7809adtr-g1 as7809ad-e1 as7809ad-g1 tape & reel as7812adtr-e1 as7812adtr-g1 as7812ad-e1 as7812ad-g1 tape & reel as7815adtr-e1 as7815adtr-g1 as7815ad-e1 as7815ad-g1 tape & reel as7818adtr-e1 as7818adtr-g1 as7818ad-e1 as7818ad-g1 tape & reel bcd semiconductor's pb-free products, as des ignated with "e1" suffix in the part number , are rohs compliant. products with "g1" suffix are available in green packages. e1: lead free g1: green tr: tape & reel blank: tube output voltage 05: 5v 06: 6v 08: 8v 09: 9v 12: 12v 15: 15v 18: 18v package t: to-220-3 tf: to-220f-3 d: to-252-2 (3)/ to-252-2 (4)/ to-252-2 (5) pb lead-free pb pb green green
as78xxa document number: ds36562 rev. 3 - 2 15 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated package outline dimensions (all dimensions in mm(inch).) to-220-3 3. 540(0. 139) 1 4 . 2 2 0 ( 0 . 5 6 0 ) 1. 150(0. 045) 0. 813(0. 032) 2. 540(0. 100) 0.356 (0.014) 2.040(0.080) 3 7 3.560(0.140) 7 9.660(0.380) 0.510(0.020) 0.381(0.015) 2 . 5 4 0 ( 0 . 1 0 0 ) 8 . 3 9 0 ( 0 . 3 3 0 ) 1.500(0. 059) 0. 200(0. 008) 2. 540( 0. 100) 0.610(0. 024) 3 . 4 2 0 ( 0 . 1 3 5 ) 10.660(0. 420) 4. 080(0. 161) 1.390(0.055) 2 7 . 8 8 0 ( 1 . 0 9 8 ) 3 0 . 2 8 0 ( 1 . 1 9 2 ) 9 . 5 2 0 ( 0 . 3 7 5 ) 1 6 . 5 1 0 ( 0 . 6 5 0 ) 4.820(0.190) 2.920(0.115) 1. 770(0. 070) option 1 option 2 option 3
as78xxa document number: ds36562 rev. 3 - 2 16 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated package outline dimensions (cont. all dimensions in mm(inch).) to-220f-3 4. 300(0. 169) 0. 450(0. 018) 0. 650(0. 026) 2. 540(0. 100) 9.700(0.382) 10.300(0. 406) 6. 900(0. 272) 7.100(0. 280) 3.000(0.119) 3.400(0.134) 14. 700(0. 579) 16. 000(0. 630) 1. 000(0. 039) 1. 400(0. 055) 1. 100(0. 043) 1. 500(0. 059) 2.790(0.110) 4.500(0.177) 12. 500(0. 492) 13. 500(0. 531) 0. 500(0. 020) 0. 900(0. 035) 2. 540(0.100) 3.000(0. 119) 3. 550(0. 140) 3. 370(0. 133) 3. 900(0. 154) 2. 350(0. 093) 2. 900(0. 114) 4. 900(0. 193) 2.520(0.099) 2.920(0.115) ? 3. 1 9 0( 0. 1 2 6) 3. 2 5 0( 0. 1 2 8) 5 5 5 option 1 option 2
as78xxa document number: ds36562 rev. 3 - 2 17 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated package outline dimensions (cont. all dimensions in mm(inch).) to-252-2 (3) 1.290.1 2 .900r ef 1. 400( 0.055 ) 1 .700(0.06 7 ) 0.470(0. 019) 0.600(0.024) 5 9 0 8 9.800(0.386) 10.400(0.409) 2. 200( 0. 087) 2.380(0. 094) 0. 900(0. 035) 1.100(0. 043) 4.700ref 6. 5 00( 0 . 256) 6. 7 00( 0 . 264) 5.130(0.202) 5.460(0. 215) 0.150(0.006) 0.750(0.030) 6.000(0.236) 6.200(0.244) 0.720(0.028) 0.850(0.033) 2. 286(0. 090) bsc 0.720(0. 028) 0.900(0. 035) 0. 900( 0. 035) 1.250(0.049) 1.800ref 8 0 0.600(0.024) 1.000(0.039) 7 3 9 5 5.250ref option 1 option 2
as78xxa document number: ds36562 rev. 3 - 2 18 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated package outline dimensions (cont. all dimensions in mm(inch).) to-252-2 (4) ?
as78xxa document number: ds36562 rev. 3 - 2 19 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated package outline dimensions (cont. all dimensions in mm(inch).) to-252-2 (5) ?
as78xxa document number: ds36562 rev. 3 - 2 20 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated suggested pad layout to-252-2 (3) e1 x1 y2 y1 z x2 g dimensions z (mm)/(inch) x1 (mm)/(inch) x2 = y2 (mm)/(inch) y1 (mm)/(inch) g (mm)/(inch) e1 (mm)/(inch) value 11.600/0.457 1.500/0.059 7.000/0.276 2.500/0.098 2.100/0.083 2.300/0.091
as78xxa document number: ds36562 rev. 3 - 2 21 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated suggested pad layout (cont.) to-252-2 (4) e1 x1 y2 y1 z x2 g dimensions z (mm)/(inch) x1 (mm)/(inch) x2 = y2 (mm)/(inch) y1 (mm)/(inch) g (mm)/(inch) e1 (mm)/(inch) value 11.600/0.457 1.500/0.059 7.000/0.276 2.500/0.098 2.100/0.083 2.300/0.091
as78xxa document number: ds36562 rev. 3 - 2 22 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated suggested pad layout (cont.) to-252-2 (5) e1 x1 y2 y1 z x2 g dimensions z (mm)/(inch) x1 (mm)/(inch) x2 = y2 (mm)/(inch) y1 (mm)/(inch) g (mm)/(inch) e1 (mm)/(inch) value 11.600/0.457 1.500/0.059 7.000/0.276 2.500/0.098 2.100/0.083 2.300/0.091
as78xxa document number: ds36562 rev. 3 - 2 23 of 23 www.diodes.com september 2013 ? diodes incorporated a s78xxa a product line o f diodes incorporated important notice diodes incorporated makes no warranty of any kind, express or implied, with regards to this document, including, but not limited to, the im plied warranties of merchantability and fitness for a particular purpose (and their equivalents under the laws of any jurisdiction). diodes incorporated and its subsidiaries rese rve the right to make modifications, enhanc ements, improvements, corrections or ot her changes without further notice to this document and any product descri bed herein. diodes incorporated does not assume any liability ari sing out of the application or use of this document or any product described herein; neither does diodes inco rporated convey any license under its patent or trademark rights, nor the rights of others. any customer or user of this document or products described herein in such applicat ions shall assume all risks of such use and will agree to hold diodes incorporated and all the companies whose products are represented on diodes incorporated website, harmless against all damages. diodes incorporated does not warrant or accept any liability w hatsoever in respect of any products purchased through unauthoriz ed sales channel. should customers purchase or use diodes inco rporated products for any unintended or una uthorized application, customers shall i ndemnify and hold diodes incorporated and its representativ es harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death a ssociated with such unintended or unauthorized application. products described herein may be covered by one or more united states, international or foreign patents pending. product names and markings noted herein may also be covered by one or more un ited states, international or foreign trademarks. this document is written in english but ma y be translated into multiple languages for re ference. only the english version of th is document is the final and determinative format released by diodes incorporated. life support diodes incorporated products are specifically not authorized for use as critical com ponents in life support devices or systems without the express written approval of the chief executive offi cer of diodes incorporated. as used herein: a. life support devices or system s are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when proper ly used in accordance with instructions for use provided in the labeling can be reasonably expected to re sult in significant injury to the user. b. a critical component is any component in a life support devic e or system whose failure to perform can be reasonably expecte d to cause the failure of the life support device or to affect its safety or effectiveness. customers represent that they have all necessary expertise in the safety and regulatory ramifi cations of their life support dev ices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-rel ated requirements concerning the ir products and any use of diodes incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or s ystems-related information or support that may be provided by diodes incorporat ed. further, customers must fully indemnify diodes incorporated and its representatives against any damages arisi ng out of the use of diodes incorporated pr oducts in such safety-critical, life suppor t devices or systems. copyright ? 2013, diodes incorporated www.diodes.com

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