23213 3 - terminal fixed voltage regulator H79L12 shantou huashan electronic devices co.,ltd . ? description ? features ? absolute maximum ratings ? t a =25 ?? ? ? internal block diagram v in ?a?a input voltage ?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?- - 35v t amb ?a?a operating temperature range ?-?-?-?-?-?-?-?-?-?-?-?- - 20~85 ?? t stg ?a ?a storage temperature range ?-?-?-?-?-?-?-?-?-?-?-?-?- - 55~150 ?? t j ?a?a junction temperature ?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?- - 55~150 ?? 1 d gnd 2 d in put 3 d out put l output current up to 100ma l low noise l high ripple rejection l power amplify output protection l thermal overload protection l current overload protection and shor t circuit protection h79l 12 is the three terminal negative regulators with single chip, and in a wide range of applications ? it suppli es fixed output voltages of - 12 v , deliver over 1 00m a output current ,and employs internal current limiting, t hermal shut down and safe operating area protection, making it essentially indestructible. to - 92 input 3 output 1 gnd 2 current generator series bypass element starting circuit referen ce voltage error amplifier thermal protection circuit soa protection
23213 3 - terminal fixed voltage regulator H79L12 shantou huashan electronic devices co.,ltd . ? typi cal application ? ele c trical chara c teristic s ? u nless ot herwise specified , v in = - 19v ,i o =40 ma, 0 ??? t j ? 125 ?? ,c in =0.33 | f ,c out =0.1 | f ? symbol parameter min. typ. max. unit conditions - 11.5 - 12 .0 - 12.5 t j = 25 ?? - 11.4 - 12.6 - 27 v ? v in ? - 14.5 v, 1ma ? i o ? 4 0 ma v o output voltage - 11.4 - 12.6 v v in = - 1 9v, 1ma ? i o ? 7 0 ma 250 t j = 25 ?? , - 2 7v ? v in ? - 14.5 v | v o line regulation 200 m v t j = 25 ?? , - 27v ? v in ? - 16v 100 t j = 25 ?? , 1ma ? i o ? 10 0 ma | v o load regulation 5 0 m v t j = 25 ?? , 1ma ? i o ? 4 0 ma i q quiescent current 6.5 ma t j = 25 ?? 1.5 - 27 v ? v in ? - 16 v | i q quiescent current change 0.1 m a 1ma ? i o ? 40 ma v n output noise volt age 80 | v t j = 25 ?? ,10hz ? f ? 10 0 khz rr ripple rejection 37 42 db t j = 25 ?? , - 25 v ? v in ? - 15 v, f=120hz v d dropout voltage 1.7 v t j = 25 ?? H79L12
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