e l ek tr on isch e b a u e lemen te s m 21 2 3 cmos positive voltage regulator d e s c r i p t i o n t h e sm 2123 series of positive,linear regulators feature low quiescent current (30ma typ.) with low dropout voltage, making them ideal * factory pre-set output voltage f e a t u r e s * high accurate * over-temperature shutdown 1.5% * very low dropout voltage * low temperature coefficient * short circuit current fold-back * guaranteed 300ma output * current limiting * portable electronics applications * pc peripherals * wireless devices * battery powered widgets * electronic scales * instrumentation * cordless phones for battery applications. these rugged devices have both thermal shutdown, and current fold-back to prevent device failure under the "worst" of operating conditions. the s m21 23 is stable with an output capacitance of 2.2mf or greater. 01 -jun-2002 rev. a page 1 of 5 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 typical application circuit block diagram sot-89 sm21 23 e 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
t c i sc psrr en 150 300 4 note v _ _ _ _ _ _ _ _ _ _ _ i n p u t v o l t a g e o v e r t e m p e r a t u r e s h u t d o w n o v e r t e m p e r a t u r e h y s t e r s i s o u t p u t v o l t a g e t e m p e r a t u r e c o e f f i c i e n t s h o r t c i r c u i 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 v in o ts o th 3 7 30 30 150 50 20 15 30 _ _ _ _ _ c o c o ppm/ ma db uvrms c o v in =v out (t)+1v,v out =0v f=1khz f=10khz f=100khz co=2.2uf io=100ma co=2.2uf f=10hz~100khz io=10ma - 0 . 4 0 . 2 0 . 4 4 . 0 v v ( t ) o u t reg line quiescent current line regulation i q 1 30 1300 0.02 -0.2 0.1 u a % v in =v out (t)+1v _ _ _ 2 . 8 v < v ( t ) v o = v % mv _ _ _ _ 400 300 out out 50 -0.15 -0.1 0.2 0.15 io=1ma v in =v out (t)+1 to v out (t)+2 1.3v v out (t) 1.4v 1.4v< v out (t) 2.0v 2.0v< v out (t)<4.0v 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 t a = 2 5 p a r a m e t e r s y m b o l m a x . t y p . c o n d i t i o n m i n . u n i t output voltage output current current limit dropout voltage v o ut io i lim v dropout - 1.5% 3 00 300 -1 v ma vo>1.2v v in =v out (t)+1v,1o=1ma v in =v out (t)+2v,v out _ _ _ _ v o u t ( t ) 2 . 0 v 2 . 0 v v o u t ( t ) 2 . 8 v o c 1 ??v out (e)*0.96 (e) v o ut 2 (e) 1.5% 450 ma load regulation reg load 0.2 v in =v out (t)+2v,io=1ma to300ma 1.3v _ io=300ma (e)-2% o c) thermal resistance power dissipation ( input voltage output current output voltage operating ambient temperature junction temperature parameter symbo l ratings unit v ma v w / c c mw v in i out tj max. 8 p d /(v in -v o ) -40~+125 1 . 3 ~ 5 3 8 1 8 0 5 5 0 -40~+85 o o a b s o l u t e m a x i m u m r a t i n g s max. junction temperature t=100 eds classification v out topr tj q jc q ja p d 150 b c o c o w / c 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 5 < note 1: v out (e) =effective output voltage (i.e. the output voltage when "v out (t) +1.0v" is provided at the vin pin while maintaining a certain i out value). 2: v out (t) =specified output voltage 3: v in (min) =v out +v dropout 4: to prevent the short circuit current protection feature from being prematurely activated, the input voltage must be applied before a current source load is applied. s m 21 23 cmos positive voltage regulator
01-jun-2002 rev. a page 3 of 5 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 s m 2 1 2 3 - 1 3 p a r t n u m b e r m a r k i n g o u t p u t v o l t a g e p a r t n u m b e r m a r k i n g o u t p u t v o l t a g e s m 2 1 2 3 - 1 8 s m 2 1 2 3 - 2 0 s m 2 1 2 3 - 2 7 s m 2 1 2 3 - 2 9 s m 2 1 2 3 - 3 1 s m 2 1 2 3 - 3 4 s m 2 1 2 3 - 3 6 s m 2 1 2 3 - 3 8 3 e 1 3 2 1 . 3 v 1 . 8 v 2 . 0 v 2 . 7 v 2 . 9 v 3 . 1 v 3 . 4 v 3 . 6 v 3 . 8 v s m 2 1 2 3 - 1 5 s m 2 1 2 3 - 1 9 s m 2 1 2 3 - 2 5 s m 2 1 2 3 - 2 8 s m 2 1 2 3 - 3 0 s m 2 1 2 3 - 3 3 s m 2 1 2 3 - 3 5 s m 2 1 2 3 - 3 7 1 . 5 v 1 . 9 v 2 . 5 v 2 . 8 v 3 . 0 v 3 . 3 v 3 . 5 v 3 . 7 v x x x x 3 e 1 8 2 x x x x 3 e 2 0 2 x x x x 3 e 2 7 2 x x x x 3 e 2 9 2 x x x x 3 e 3 1 2 x x x x 3 e 3 4 2 x x x x 3 e 3 6 2 x x x x 3 e 3 8 2 x x x x 3 e 1 5 2 x x x x 3 e 1 9 2 x x x x 3 e 2 5 2 x x x x 3 e 2 8 2 x x x x 3 e 3 0 2 x x x x 3 e 3 3 2 x x x x 3 e 3 5 2 x x x x 3 e 3 7 2 x x x x s m 2 1 2 3 - 5 0 5 . 0 v 3 e 5 0 2 x x x x c h a r a c t e r i s t i c s c u r v e ordering information(contd.) s m 21 23 cmos positive voltage regulator
01-jun-2002 rev. a page 4 of 5 http://www.secosgmbh.com/ any changing of specification will not be informed individual e l e k t r o n i s c h e b a u e l e m e n t e s m 21 23 cmos positive voltage regulator
http://www.secosgmbh.com/ any changing of specification will not be informed individual 01-jun-2002 rev. a page 5 of 5 elektronische bauelemente s m 21 23 cmos positive voltage regulator
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