e l ek tr on isch e b a u e lemen te S5M2111 cmos positive voltage regulator * factor per-set output voltage f e a t u r e s * excellent psrr type 70db * over-temperature shutdown * very low dropout voltage * noise reduction bypass capacitor * short circuit current fold-back * guaranteed 1 5 0ma output * current limiting * portable electronics applications * pc peripherals * wireless devices * battery powered widgets * instrumentation * power-saving shutdown mode the s 5m21 1 1 series positive,linear regulators feature low quiescent current ( 50 m a typ.) with low dropout voltage, voltage and excellent description psrr, thus making them ideal for telecommunications and other battery applications. these rugged devices have both thermal shut- down, and current fold-back to prevent device failure under the "worst" of operating conditions. as an additional feature, the S5M2111 is stable with an output capacitance of just extended 0.22mf or greater. typical application circuit functional block diagram 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 ref. min. max. ref. millimeter a 4.40 4.60 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 0.80 - l 5 typ. millimeter dimensions S5M2111 * cameras * cellular phones * telecommunications * electronic scales * cordless phones
h t t p : / / w w w . s e c o s g m b h . c o m / o c) power dissipation ( input voltage output current output voltage operating ambient temperature junction temperature parameter symbo l ratings unit v ma v c mw v in i out tj max. 6 p d /(v in -v o ) -40~+125 1.5~3.3 -40~+85 550 o max. junction temperature t=100 eds classification v out topr tj p d 150 b c o c o a b s o l u t e m a x i m u m r a t i n g s e l e k t r o n i s c h e b a u e l e m e n t e 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 electrical characteristics t a =25 unless otherwise noted (v out (t)>2.0v v i n =v out (t)+0.5v; v out (t) 2.0v v i n =v out (t)+1v; v shdn =v i n , c i n =c out =1uf) parameter symbol condition min typ max unit i o =0.1ma, v out (t) 2.0v -1.0 1.0 i o =0.1ma, v out (t)<2.0v -1.5 1.5 output voltage v out (e) (note1) i o =150ma -2.0 v out (t) (note2) 2.0 % current limit i lim v o >800mv 150 200 - ma fold-back current i fb v o =0v - 80 - a v out >2.0v v i n =v out (t)+0.5v -1 0.5 1 load regulation reg load i o =0.1 to 150ma v out 2.0v v i n =v out (t)+1v -2 - 2 % v out (t) 2.0v - 300 500 1.8v v out (t)<2.0v - 700 1000 dropout voltage v dropout i o =150ma v o =v out (e)-2% 1.5v v out (t)<1.8v - 900 1300 mv quiescent current i q v i n =5v, i o =0ma - 60 - a ground pin current i gnd v i n =5v, i o =1ma to150ma - 50 - a i o =0.1ma, v out >2.0v v i n =v out (t)+0.5v to 5.5v -0.2 0.1 0.2 line regulation reg line i o =0.1ma, v out 2.0v v i n =v out (t)+1v to 5.5v -0.4 - 0.4 % i nput voltage vi n note3 - 5.5 v over temperature shutdown ots - 137 - : over temperature hysterisis oth - 23 - : output voltage temperature coefficient tc - 30 - ppm/ : power supply rejection psrr r o=100 ,co=2.2mf, f=1khz - 70 - db output voltage noise en f=10hz~100khz, i o=10ma, co=2.2 f - 30 - vrms v shdnh v shdn =0.8* v i n 0.8* v i n - v i n v shdn i nput threshold v shdnl v shdn =0.6v 0 - 0.6 v shdn i nput bias current v i n =5v, en=0v, or 5v - 0.01 - a shutdown supply current i sd v i n =5v, v o =0v - 0.5 1 a shutdown output voltage v o,sd output loading 1200 , vo=0v 0 - 0.4 v note 1: v out (e) =effective output voltage (i.e. the output voltage when v out (t)>2.0v v i n =v out (t)+0.5v; v out (t) 2.0v v i n =v out (t)+1v; v shdn =v i n is provided at the v i n pin while maintaining a certain i out value). 2: v out (t) =specified output voltage 3: v i n (m i n) =v out +v dropout s 5m2111 cmos positive voltage regulator
01-jun-2002 rev. a page 3 of 5 h t t p : / / w w w .s e c o sg m b h .c o m/ a n y c ha n g i n g o f s pe c if i c a t i o n w ill no t b e i n f o r m ed i nd i v i dual 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 5 m 2 1 1 1 - 1 5 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 1 p 1 5 2 1 . 5 v x x x x o r d e r i n g i n f o r m a t i o n ( c o n t d . ) 1 . 8 v s 5 m 2 1 1 1 - 1 8 1 p 1 8 2 x x x x s 5 m 2 1 1 1 - 2 0 1 p 2 0 2 2 . 0 v x x x x 2 . 5 v s 5 m 2 1 1 1 - 2 5 1 p 2 5 2 x x x x s 5 m 2 1 1 1 - 2 7 1 p 2 7 2 2 . 7 v x x x x 2 . 8 v s 5 m 2 1 1 1 - 2 8 1 p 2 8 2 x x x x s 5 m 2 1 1 1 - 2 h 1 p 2 h 2 2 . 8 5 v x x x x 3 . 0 v s 5 m 2 1 1 1 - 3 0 1 p 3 0 2 x x x x s 5 m 2 1 1 1 - 3 2 1 p 3 2 2 3 . 2 v x x x x 3 . 3 v s 5 m 2 1 1 1 - 3 3 1 p 3 3 2 x x x x d e t a i l e d d e s c r i p t i o n t h e g 5 m 2 1 1 1 s e ri e s o f c o m s re g u l a t o rs co n t a i n a p m o s p a ss t ra n s i s t o r , v o l t a g e re f e re n ce , e rro r a m p l i f i e r , o v e r-cu rre n t p ro t e c t i o n , a n d t h e r m a l s h u t d o w n . t h e p-ch a n n e l p a s s t ra n s i s t o r re ce i v e s d a t a f ro m t h e e rro r a m p l i f i e r , o v e r-cu rre n t s h u t d o w n , a n d t h e rm a l p ro t e ct i o n c i rcu i t s . d u ri n g n o r m a l o p e ra t i o n , t h e e rro r a m p l i f i e r co m p a re s t h e o u t p u t v o l t a g e t o a p re ci s i o n re f e re n ce . o v e r- cu rre n t a n d t h e r m a l s h u t d o w n ci rcu i t s b e co m e a ct i v e w h e n t h e j u n ct i o n t e m p e ra t u re e x ce e d s 1 5 0 : , o r t h e cu rre n t e xce e d s 1 5 0 m a. d u r i n g t h e r m a l s h u t d o w n , t h e o u t p u t v o l t a g e re m a i n s l o w . n o r m a l o p e ra t i o n i s re s t o re d w h e n t h e j u n ct i o n t e m p e ra t u re d ro p s b e l o w 1 2 0 : . t h e g 5 m 2 1 1 1 s w i t ch e s f ro m v o l t a g e m o d e t o cu rre n t m o d e w h e n t h e l o a d e x ce e d s t h e ra t e d o u t p u t cu rre n t . t h i s p re v e n t s o v e r-s t re s s . t h e g 5 m 2 1 1 1 a l s o i n co rp o r a t e s cu rre n t f o l d -b a ck t o re d u ce p o w e r d i s s i p a t i o n w h e n t h e o u t p u t i s s h o rt ci rcu i t e d . t h i s f e a t u re b e co m e s a ct i v e w h e n t h e o u t p u t d ro p s b e l o w 0 . 8 v o l t s , a n d re d u ce s t h e cu rre n t f l o w b y 6 5 % . f u l l cu rre n t i s re s t o re d w h e n t h e v o l t a g e e x ce e d s 0 . 8 v o l t s . e x t e r n a l c a p a c i t o r s t h e g 5 m 2 1 1 1 i s s t a b l e w i t h a n o u t p u t ca p a ci t a n ce t o g ro u n d o f 0 . 2 2 f o r g re a t e r . c e ra m i c ca p a ci t o rs h a v e t h e l o w e s t esr , a n d w i l l o f f e r t h e b e s t ac p e r f o r m a n c e . c o n v e rs e l y , a l u m i n u m e l e ct ro l y t i c ca p a ci t o rs e x h i b i t t h e h i g h e s t esr , re s u l t i n g i n t h e p o o re s t ac re s p o n s e . a s e co n d ca p a ci t o r i s re co m m e n d e d b e t w e e n t h e i n p u t a n d g ro u n d t o s t a b i l i ze v i n . t h e i n p u t ca p a ci t o r s h o u l d b e a t l e a s t 1 f t o h a v e a b e n e f i ci a l e f f e ct . a l a rg e ca p a ci t o r i m p ro v e s t h e ac r i p p l e re j e ct i o n , b u t a l s o m a ke s t h e o u t p u t co m e u p s l o w l y . t h i s so f t t u rn -o n i s d e s i ra b l e i n s o m e a p p l i ca t i o n s t o l i m i t t u rn -o n s u rg e s . al l ca p a ci t o rs s h o u l d b e p l a ce d i n c l o s e p ro x i m i t y t o t h e p i n s . a q u i e t g ro u n d t e r m i n a t i o n i s d e s i ra b l e . t h i s ca n b e a ch i e v e d w i t h a s t a r co n n e ct i o n . s h u t d o w n w h e n a ct i v e l y , p u l l e d l o w , t h e pm o s p a s s t ra n s i s t o r s h u t s o f f , a n d a l l i n t e rn a l c i rcu i t s a re p o w e re d d o w n . i n t h i s s t a t e , t h e q u i e s ce n t cu rre n t i s l e s s t h a n 1 a. t h i s p i n b e h a v e s m u ch l i ke a n e l e c t ro n i c s w i t ch . c h a r a c t e r i s t i c s c u r v e s 5m2111 cmos positive voltage regulator
e l ek tr on isch e b a u e lemen te 01 -jun-2002 rev. a page 4 of 5 http://www.secosgmbh.com/ any changing of specification will not be informed individual s 5m2111 cmos positive voltage regulator
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 5 of 5 s 5m2111 cmos positive voltage regulator
|
