input voltage 100 -55~+150 output current s t o r a g e t e m p e r a t u r e r a n g e tj t s t g i o c c o o operating junction temperature range p a r a m e t e r s y m b o l r a t i n g s u n i t v ma v in -3 5 a b s o l u t e m a x i m u m r a t i n g s total power dissipation p d 0~+125 350 mw h t t p : / / w w w . s e c o s g m b h . c o m / a n y c h a n g i n g o f s p e c i f i c a t i o n w i l l n o t b e i n f o r m e d i n d i v i d u a l 0 1 - j u n - 2 0 0 2 r e v . a p a g e 1 o f 2 e l ek tr on isch e b a u e lemen te sm7 9l 12 3-terminal negative voltage regulator sot-89 ref. min. max. ref. min. max. a 4.4 4.6 g 3.00 ref. b 4.05 4.25 h 1.50 ref. c 1.50 1.70 i 0.40 0.52 d 1.30 1.50 j 1.40 1.60 e 2.40 2.60 k 0.35 0.41 f 0.89 1.20 l 5 typ. m 0.70 ref. millimeter millimeter application circuit sm79l 12 d e s c r i p t i o n t h e s m 7 9 l 1 2 s e r i e s o f t h r e e - t e r m i n a l n e g a t i v e r e g u l a t o r s a r e a v a i l a b l e i n t h e s o t - 8 9 p a c k a g e . t h e y c a n p r o v i d e l o c a l o n c a r d - r e g u l a t i o n , e l i m i n a t i n g t h e d i s t r i b u t i o n p r o b l e m s a s s o c i a t e d w i t h s i n g l e p o i n t r e g u l a t i o n ; f u r t h e - m o r e , h a v i n g t h e s a m e v o l t a g e o p t i o n s a s t h e s m 7 9 l 1 2 p o s i t i v e s t a n d a r d s e r i e s , t h e y a r e p a r t i c u l a r l y s u i t e d f o r s p l i t p o w e r s u p p l i e s . i f a d e q u a t e h e a t s i n k i n g i s p r o v i d e d , t h e s m 7 9 l 1 2 s e r i e s c a n d e l i v e r a n o u t p u t c u r r e n t i n e x c e s s o f 1 0 0 m a a l t h o u g h d e s i g n e d p r i m a r i l y a s f i x e d v o l t a g e r e g u l a t o r s , t h e s e d e v i c e s c a n b e u s e d w i t h e x t e r n a l c o m p o n e n t s t o o b t a i n a d j u s t a b l e v o l t a g e a n d c u r r e n t s .
h t t p : / / w w w . s e c o s g m b h . c o m / a n y c h a n g i n g o f s p e c i f i c a t i o n w i l l n o t b e i n f o r m e d i n d i v i d u a l 01 -jun-2002 rev. a page 2 of 2 e l e k t r o n i s c h e b a u e l e m e n t e sm7 9l 12 3-terminal negative voltage regulator 2 1 0 u v v n o 6 4 _ 6 m v m v m a _ _ _ _ o r i p p l e v o - 1 1 . 5 8 v r r s y m b o l m a x . t y p . t e s t c o n d i t i o n m i n . u n i t v i = - 1 9 v , i o = 4 0 m a , t j = 2 5 c , c i n = 0 . 3 3 u f , c o u t = 0 . 1 u f u n l e s s o t h e r w i s e s p e c i f i e d - 1 2 - 1 2 . 4 2 v o - v i n ( l i n e r e g u l a t i o n ) v o - i o ( l o a d r e g u l a t i o n ) _ 3 6 2 5 0 1 0 0 v i n = - 1 4 . 5 v ~ - 2 7 v , i o = 4 0 m a v i n i q d b = - 1 9 v , i o = 4 0 m a 1 6 3 . 5 3 7 r a n k a ( 3 % ) q u i e s c e n t c u r r e n t o u t p u t v o l t a g e n o i s e r e j e c t i o n v i n = - 1 9 v , i o = 1 ~ 1 0 0 m a v i n = - 1 9 v , i o = 4 0 m a v i n = - 1 9 v , b w = 1 0 h z ~ 1 0 0 k h z , i o = 4 0 m a v i n = - 1 5 v ~ - 2 5 v , i o = 4 0 m a , e i n = 1 v p - p , f = 1 9 0 h z 2 1 0 u v v n o 6 4 _ 6 m v m v m a _ _ _ _ o r i p p l e v o - 1 1 . 4 v r r s y m b o l m a x . t y p . t e s t c o n d i t i o n m i n . u n i t v i = - 1 9 v , i o = 4 0 m a , t j = 2 5 c , c i n = 0 . 3 3 u f , c o u t = 0 . 1 u f u n l e s s o t h e r w i s e s p e c i f i e d - 1 2 - 1 2 . 6 v o - v i n ( l i n e r e g u l a t i o n ) v o - i o ( l o a d r e g u l a t i o n ) _ 3 6 2 5 0 1 0 0 v i n i q d b = - 1 9 v , i o = 4 0 m a 1 6 3 . 5 3 7 r a n k b ( 5 % ) q u i e s c e n t c u r r e n t o u t p u t v o l t a g e n o i s e r e j e c t i o n v i n = - 1 9 v , i o = 1 ~ 1 0 0 m a v i n = - 1 9 v , i o = 4 0 m a v i n = - 1 9 v , b w = 1 0 h z ~ 1 0 0 k h z , i o = 4 0 m a v i n = - 1 4 . 5 v ~ - 2 7 v , i o = 4 0 m a v i n = - 1 5 v ~ - 2 5 v , i o = 4 0 m a , e i n = 1 v p - p , f = 1 9 0 h z e l e c t r i c a l c h a r a c t e r i s t i c s a t t a = 2 5 c o
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