e l ek tr on isch e b a u e lemen te SCLM317L 100ma adjustable voltage regulator d e s c r i p t i o n t h e s clm317l is a monolithic integral circuit, designed for use as positive adjustable voltage regulator. it is designed to supply unit 100ma of load current with an output voltage adjustable over a 1.25v to 37v range. * short circuit protection f e a t u r e s * thermal overload protection * floating operation for high voltage applications * output voltage adjustable from 1.25v to 37v * output transistor save area compensation * output current in excess of 100ma 01 -jun-2002 rev. a page 1 of 3 http://www.secosgmbh.com/ any changing of specification will not be informed individual r o h s c o m p l i a n t p r o d u c t block diagram test circuit s clm317l l e1 b e seating plane b1 a d c s1 e ref. min. max. ref. min. max. a 4.45 4.7 d 4.44 4.7 s 1 1.02 - e 3.30 3.81 b 0.36 0.51 l 12.70 - b 1 0.36 0.76 e1 1.150 1.390 c 0.36 0.51 e 2.42 2.66 millimeter millimeter to-92
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 ( v i n - v o u t = 5 v , 0 c t j 1 2 5 c , i o = 4 0 m a , u n l e s s o t h e r w i s e s p e c i f i e d ) o o sc lm317l 1 0 0 m a a d j u s t a b l e v o l t a g e r e g u l a t o r i n p u t - o u t p u t v o l t a g e d i f f e r e n c e j u n c t i o n t e m p e r a t u r e p o w e r d i s s i p a t i o n s t o r a g e t e m p e r a t u r e r a n g e o p e r a t i n g j u c t i o n t e m p e r a t u r e 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 m w v i n - v o u t t j 4 0 + 1 2 5 - 4 0 ~ + 1 5 0 0 ~ + 7 0 a b s o l u t e m a x i m u m r a t i n g s a t t a = 2 5 c p d t s t r t o p r c o c o 6 2 5 o c o n o t e : 1 . a b s o l u t e m a x . r a t i n g s a r e t h o s e v a l u e s b e y o n d w i t c h t h e d e v i c e c o u l d b e p e r m a n e n t l y d e m a g e d . a b s o l u t e m a x . r a t i n g s a r e s t r e s s r a t i n g s o n l y a n d f u n c t i o n a l d e v i c e o p e r a t i o n i s n o t i m p l i e d . 2 . t h e d e v i c e i s g u a r a n t e e d t o m e e t p e r f o r m a n c e s p e c i f i c a t i o n w i t h i n 0 c ~ 7 0 c o p e r a t i n g t e m p e r a t u r e r a n g e a n d a s s u r e d b y d e s i g n f r o m - 2 0 c ~ 8 5 c . o o o o e l e k t r o n i s c h e b a u e l e m e n t e 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 3 max unit t j =25 : - 0.01 0.04 %/v line regulation reg line v in -v out =3~40v i o <20ma 0 : t j 125 : - 0.02 0.07 %/v t j =25 : - 5 25 i o =5~100ma v out 5v 0 : t j 125 : - 20 70 mv t j =25 : - 0.1 0.5 load regulation reg load i o =5~100ma v out 5v 0 : t j 125 : - 0.3 1.5 %/v out adjustable pin current i adj - 50 100 a adjustable pin current change i adj v in -v out =3~40v i o =5~100ma, p d < 625mw - 0.2 5 a reference voltage v ref v in -v out =3~40v i o =5~100ma, p d < 625mw 1.2 1.25 1.3 v output voltage temperature stability v out /v out - 0.7 - % minimum load current i load(min) v in -v out =40v - 3.5 5 ma v in -v out =3~13v 100 200 maximum output current i out(max) v in -v out =40v 25 50 - ma output noise voltage (% of v out ) en f=10hz ~ 10khz, t j =25 : - 0.003 - %/v out c adj =0 - 65 - ripple rejection rr t j =25 : , f=120hz c adj =10uf 66 80 - db characteristics curve t y p m i n t e s t c o n d i t i o n s s y m b o l p a r a m e t e r
01-jun-2002 rev. a page 3 of 3 h 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 e l e k t r o n i s c h e b a u e l e m e n t e sc lm317l 1 0 0 m a a d j u s t a b l e v o l t a g e r e g u l a t o r f i g 1 . b a s i c a d j u s t a b l e r e g u l a t o r f i g 2 . v o l t a g e r e g u l a t o r w i t h p r o t e c t i o n d i o d e s f i g 3 . s l o w t u r n - o n 1 5 v r e g u l a t o r f i g 4 . 5 v e l e c t r o n i c s h u t - d o w n r e g u l a t o r s c lm317l 4 1 2 , 3 , 6 , 7 s c lm317l 4 1 2,3, 6,7 s c lm317l 4 1 2 , 3 , 6 , 7 s c lm317l 4 1 2 , 3 , 6 , 7 a p p l i c a t i o n i n f o r m a t i o n a n d c i r c u i t s t h e s clm317l provides an internal reference voltage of 1.25v between the output and adjustments terminals.this is used to s e t a c o n s t a n t c u r r e n t f l o w a c r o s s a n e x t e r n a l r e s i s t o r d r i v e r , g i v i n g a n o u t p u t v o l t a g e v o u t o f : v o u t = v r e f * ( 1 + r 2 / r 1 ) + i a d j * r 2 . t h e d e v i c e i s d e s i g n e d t o m i n . t h e t e r m i a d j ( 1 0 0 u a m a x ) a n d t o m a i n t a i n i t v e r y c o n s t a n t w i t h l i n e a n d l o a d c h a r g e s . u s u a l l y , t h e e r r o r t e r m i a d j * r 2 c a n b e n e g l e c t e d . t o o b t a i n t h e p r e v i o u s r e q u i r e m e n t , a l l t h e r e g u l a t o r q u i e s c e n t c u r r e n t i s r e t u r n e d t o t h e o u t p u t t e r m i n a l , i m p o s i n g a m i n . l o a d c u r r e n t c o n d i t i o n . i f t h e l o a d i s i n s u f f i c i e n t , t h e o u t p u t v o l t a g e w i l l r i s e . t h e s clm317l i s a f l o a t i n g r e g u l a t o r , i n p u t - o u t p u t d i f f e r e n t i a l v o l t a g e , s u p p l i e s o f v e r y h i g h v o l t a g e w i t h r e s p e c t t o g r o u n d c a n b e r e g u l a t e d a s l o n g a s t h e m a x . i n p u t - o u t p u t d i f f e r e n t i a l i s n o t e x c e e d e d . f u r t h e m o r e , p r o g r a m m a b l e r e g u l a t o r s a r e e a s i l y o b t a i n a b l e a n d , b y c o n n e c t i n g a f i x e d r e s i s t o r b e t w e e n t h e a d j u s t m e n t a n d o u t p u t , t h e d e v i c e c a n b e u s e d a s a p r e c i s i o n c u r r e n t r e g u l a t o r .
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