23213 3 - terminal fixed vol t age regula t or H78L12 shantou huashan electronic devices co.,ltd . ? description h78l1 2 is th e t h r ee te rm in al p o s i t i v e re gu la to rs w i t h si ngl e c h ip , a n d i n a wid e ra ng e of ap pl ic at ion s ? it s u p p l i e s f ix ed ou tp u t vo lt ag es of 12 v, de li v e r ov er 10 0 ma ou tp ut c u r r e nt ,a nd em pl oy s i n t e r n a l cur re nt l i m iti ng , th er mal s h u t do wn an d sa fe op er at in g area protection, making it essentially indestructible. 1 d output 2 d gnd 3 d input t o -92 ? featur es o u tput current up to 100m a low noise h i gh ripple rejection pow e r a m plify o u tput protection therm a l overload protection current o v erload protection and short circuit protection ? absolute maximum ratings ? t a =25 ??? v in ?a?a input v o ltage ?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?- 35v p d ?a?a pow e r of d i ssipation ?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?- 700m w t am b ?a?a operating t e m p erature range ?-?-?-?-?-?-?-?-?-?-?-?- -20~85 ?? t stg ?a?a s t orage t e m p erature range ?-?-?-?-?-?-?-?-?-?-?-?-?- -55~150 ?? t j ?a?a junction t e m p erature ?-?-?-?-?-?-?-?-?-?-?-?-?-?-?-?- -55~150 ?? r th ?a?a therm a l resis t ance ? jun c ti on to e n viro n m ent ? ?-?-?-?-?-?-?- 18 0 ?? /w ? internal block diagram soa protection therm a l protection circuit error am plifier reference v o ltage s t arting circuit series bypass elem ent current generator gnd 2 output 1 input 3
23213 3 - terminal fixed vol t age regula t or H78L12 shantou huashan electronic devices co.,ltd . ? t y pical application H78L12 gnd output input ? electrical characteristics ? u nless otherwise specified, v in =19v,i o =40ma,0 ??? t j ? 125 ?? ,c i n =0.33 | f,c o u t =0.1 | f ? symbol p a r a m e t e r m i n . t y p . m a x . u n i t c o n d i t i o n s 1 1 . 5 1 2 . 0 1 2 . 5 t j =25 ?? 1 1 . 5 1 2 . 5 14v ? v in ? 27v,1ma ? i o ? 40ma v o o u t p u t v o l t a g e 1 1 . 5 1 2 . 5 v v in =19v,1ma ? i o ? 70ma 1 4 2 5 0 t j =25 ?? , 14.5v ? v in ? 27v | v o l i n e r e g u l a t i o n 1 0 2 0 0 mv t j =25 ?? , 16v ? v in ? 27v 2 0 1 0 0 t j =25 ?? ,1ma ? i o ? 100ma | v o l o a d r e g u l a t i o n 1 0 5 0 mv t j =25 ?? ,1ma ? i o ? 40ma i q qu ie sc en t current 2 . 6 6 . 0 m a t j =25 ?? 1 . 5 16v ? v in ? 27v, i o =40ma | i q qu ie sc en t current change 0 . 1 ma v in =19v,1ma ? i o ? 40ma v n ou tp ut no is e voltage 1 1 5 2 8 0 | v t j =25 ?? ,10hz ? f ? 100khz r r r i pp le re je ct io n 4 7 6 6 d b t j =25 ?? ,15v ? v in ? 25v, f=120hz v d d r o p o u t v o l t a g e 1 . 7 v t j =25 ?? i sc sh or t ci rc ui t current 8 8 m a t j =25 ?? , v in =20v i pk peak current 1 2 5 1 6 0 2 0 5 m a t j =25 ?? | v o / | t te mp er at ur e co ef fi ci en t of v o 1 . 1 mv/ ?? i o =5ma
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