???? w w w . b e l l i n g . c o m . c n 1 BL8068 7 00ma high psrr, low noise, fast response linear regulator d e s c r i p t i o n b l 8068 series is a group of positive voltage output, l o w p o w e r c o n s u m p t i o n , l o w d r o p o u t v o l t a g e r e g u l a t o r . b l 8068 can provide output value in the range of 1 . 2 v ~ 4 . 5 v e v e r y 0 . 1 v s t e p . i t a l s o c a n b e c u s t o m i z e d o n c o m m a n d . b l 8068 includes high accuracy voltage reference, e r ro r a m p l i ? e r , c u r re n t l i m i t c i rc u i t a n d o u t p u t d r i v e r m o d u l e w i t h d i s c h a r g e c a p a b i l i t y . b l 8068 has excellent load and line transient response a n d g o o d t e m p e r a t u r e c h a r a c t e r i s t i c s , w h i c h c a n a s s u r e t h e s t a b i l i t y o f c h i p a n d p o w e r s y s t e m . a n d i t u s e s t r i m m i n g t e c h n i q u e t o g u a r a n t e e o u t p u t v o l t a g e a c c u r a c y w i t h i n 2 % . b l 8068 is available in sot-23-5, sc-70-5 packages w h i c h i s l e a d f r e e . f e a t u r e s l o w p o w e r c o n s u m p t i o n : 3 0 u a t y p . ? l o w o u t p u t n o i s e ( 5 0 u v r m s ) ? s t a n d b y m o d e : 0 . 1 u a ? l o w d r o p o u t v o l t a g e : 0 . 0 8 v @ 1 5 0 m a ( t y p . ) ? h i g h r i p p l e r e j e c t i o n : 7 2 d b @ 1 0 0 0 h z ( t y p . ) ? l o w t e m p e r a t u r e c o e f ? c i e n t : 1 0 0 p p m / ? o c e x c e l l e n t l i n e r e g u l a t i o n : 0 . 0 5 % / v ? b u i l d - i n c h i p e n a b l e a n d d i s c h a r g e c i r c u i t ? o u t p u t v o l t a g e r a n g e : 1 . 2 v ~ 4 . 5 v ( c u s t o m i z e d o n ? c o m m a n d e v e r y 0 . 1 v s t e p ) h i g h l y a c c u r a t e : 2 % ? o u t p u t c u r r e n t l i m i t ? a p p l i c a t i o n s p o w e r s o u r c e f o r c e l l u l a r p h o n e s a n d v a r i o u s k i n d ? o f p c s s b a t t e r y p o w e r e d e q u i p m e n t ? p o w e r m a n a g e m e n t o f m p 3 , p d a , d s c , m o u s e , ? p s 2 g a m e s r e f e r e n c e v o l t a g e s o u r c e ? r e g u l a t i o n a f t e r s w i t c h i n g p o w e r ? t y p i c a l a p p l i c a t i o n c i rc u i t n o t e : i n p u t c a p a c i t o r ( c i n = 1 u f ) a n d o u t p u t c a p a c i t o r ( c o u t 1 u f ) a r e r e c o m m e n d e d i n a l l a p p l i c a t i o n c i r c u i t . 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 l o a d r e g u l a t i o n ( v i n = 4 . 5 v , v o u t = 3 . 3 v )
???? w w w . b e l l i n g . c o m . c n 2 BL8068 o r d e r i n g i n f o r m a t i o n b l 8068 ????? code description ? t emperatur e&r ohs: c: -40~85 o c ,pb fr ee r ohs s t d. ? p ackage type: a5: sc-70-5 b5a: so t-23-5(a) b5b: so t-23-5(b) ? p acking type: tr:t ape&r eel (s tandar d) ? output v oltage: e.g. 15=1.5v 18=1.8v 45=4.5v ? v oltage accuracy: blank(default)=2% m a r k i n g d e s c r i p t i o n f : p r o d u c t c o d e x : o u t p u t v o l t a g e v out code v out code v out code 2.6v 6 4.1v 1 1.2v 2 2.7v 7 4.2v 2 1.3v 3 2.8v 8 4.3v 3 1.4v 4 2.9v 9 4.4v 4 1.5v 5 3.0v 0 4.5v 5 1.6v 6 3.1v 1 1.7v 7 3.2v 2 1.8v 8 3.3v 3 1.9v 9 3.4v 4 2.0v 0 3.5v 5 2.1v 1 3.6v 6 2.2v 2 3.7v 7 2.3v 3 3.8v 8 2.4v 4 3.9v 9 2.5v 5 4.0v 0 d a t e c o d e 1 s t z : t h e y e a r o f m a n u f a c t u r i n g , " 8 " f o r y e a r 2 0 0 8 , a n d " 0 " f o r y e a r 2 0 1 0 . d a t e c o d e 2 n d z : t h e w e e k of m a n u f a c t u r i n g , " a " f o r w e e k 1 , " z " f o r w e e k 2 6 , " a " f o r w e e k 2 7 , " z " f o r w e e k 5 2 . p i n c o n f i g u r a t i o n p ar t no. BL8068ca5tr marking f: pr oduct code x: output v oltage zz: dat e code p ar t no. bl80 68cb5atr marking f: pr oduct code x: output v oltage zz: dat e code p ar t no. BL8068 cb5btr marking f: pr oduct code x: output v oltage zz: dat e code | : t ype b p i n d e s c r i p t i o n pin description v s s gound v i n input v oltage supply v o u t output v oltage c e chip enable n c no connection xzz f xzz f xzzi f
???? w w w . b e l l i n g . c o m . c n 3 BL8068 a b s o l u t e m a x i m u m r a t i n g p aramet er s v alue input v oltage -0.3 ~ 6 v operation junction t emperatur e (tj) 150 o c output curr ent 800 ma s t orage t emperatur e -65 ~ 150 o c p ow er dissip ation sc70-5 250 mw so t23-5 360 mw ir r e?ow lead t emperatur e and time 260 o c , 10s esd rating, human body mode 3000 v n o t e : e x c e e d t h e s e l i m i t s t o d a m a g e t o t h e d e v i c e . e x p o s u r e t o a b s o l u t e m a x i m u m r a t i n g c o n d i t i o n s m a y a f f e c t d e v i c e r e l i a b i l i t y . r e c o m m e n d e d o p e r a t i o n r a n g e p aramet er s v alue input v oltage 1.2 ~ 6 v operation ambient t emperatur e -40 ~ 85 o c b l o c k d i ag r a m d i ag r a m e x p l a n a t i o n b l 8 068 includes high accuracy voltage r e f e r e n c e , e r r o r a m p l i f i e r , c u r r e n t l i m i t c i r c u i t a n d o u t p u t d r i v e r m o d u l e w i t h d i s c h a r g e c a p a b i l i t y . b l 8 068 h a s e x c e l l e n t l o a d a n d l i n e t r a n s i e n t r e s p o n s e a n d g o o d t e m p e r a t u r e c h a r a c t e r i s t i c s , w h i c h c a n a s s u r e t h e s t a b i l i t y o f c h i p a n d p o w e r s y s t e m . a n d i t u s e s t r i m m i n g t e c h n i q u e t o g u a r a n t e e o u t p u t v o l t a g e a c c u r a c y w i t h i n 2 % . l o w e s r c e r a m i c c a p a c i t o r c a n b e u s e d f o r b l 80 68 for both input and output ends. b o t h 1 u f c a n k e e p b l 8 068 work stable. h o w e v e r , a l a r g e r o u t p u t c a p a c i t o r , s u c h a s 3 . 3 u f / 4 . 7 u f i s a l w a y s r e c o m m e n d e d t o c o m p e n s a t e d y m a n i c l o a d c u r r e n t c h a n g e .
???? w w w . b e l l i n g . c o m . c n 4 BL8068 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 e s t c o n d i t i o n : c i n = 1 u f , c o u t = 1 u f , t a = 2 5 o c , u n l e s s o t h e r w i s e s p e c i ? e d . b l 8068 , for arbitrary output voltage (vout set ) s ymbol p aramet er s condition min. t yp. max. unit vin input v oltage 1.2 6 v v out output v oltage vin=v out set +1v 1maiout30ma v out set x 0.98 v out set v out set x 1.02 v iout max maximum output curr ent 700 ma v dr op dr opout v oltage, v out2.8v iout=50ma 25 40 mv iout=100ma 50 75 mv iout=150ma 75 115 mv iout=400ma 220 280 mv line r eguation iout=40ma ; 2.8vvin6v 0.05 0.1 %/v lo ad r egulation vin=v out set +1v 1maiout500ma 100 150 mv iss supply curr ent when operation vin=v out set +1v 30 50 ua ishut down s u p p l a y c u r r e n t w h e n s h u t d o w n vin=v out set +1v , v ce=0v 0.1 1 ua output v oltage t emperatur e coef?cient vin=set v out+1v iout=30ma 50 ppm/ o c psrr p ow er supply ripple r ejection rat e f=1000hz, ripple=0.5v pp vin=v out set +1v 72 db i limit output shor t curr ent limit v out=0v 800 ma v ceh ce input v oltage for high 1.4 v v cel ce input v oltage for low 0.25 v e n output noise bandwith=10~100khz 50 uv r ms n o t e : v o u t s e t i s t h e n o m i n a l o u t p u t v o l t a g e t h a t b l 8 0 68 is set to, for example, 3.3v. v d r o p = v i n - ( v o u t * 0 . 9 8 ) , i n w h i c h v o u t i s t h e o u t p u t v o l t a g e w h e n v i n = v o u t s e t + 1 . 0 v a t d i f f e r e n t o u t p u t c u r r e n t , a n d v i n i s t h e i n p u t v o l t a g e a t w h i c h t h e o u t p u t v o l t a g e b e c o m e s 9 8 % o f v o u t a f t e r g r a d u a l l y d e c r e a s i n g t h e i n p u t v o l t a g e . . vout vin vout ? ? ? iout vout ? ? / vout t vout ? ? ?
???? w w w . b e l l i n g . c o m . c n 5 BL8068 t y p i c a l p e r f o r m a n c e c h a r a c t e r i s t i c s ( c o n t ' ) t e s t c o n d i t i o n : c i n = 1 u f , c o u t = 1 u f , t a = 2 5 o c , c e p i n i s t i e d t o v i n , v o u t s e t = 3 . 3 v , u n l e s s o t h e r w i s e s p e c i ? e d . 5) line t ransient r esponse (ch1: vin 4 ? 5v; ch2: v out) 6) lo ad t ransient r esponse (ch1: iout 1 ? 50ma ; ch2: v out) 7) s tar tup by ce (ch1: v out; ch2: ce) 8) shut down by ce (ch1: v out; ch2: ce)
???? w w w . b e l l i n g . c o m . c n 6 BL8068 p a c k ag e o u t l i n e d i m e n s i o n p ackage sc70-5 devices per r eel 3000 dimension (mm) p ackage so t23-5 devices per r eel 3000 dimension (mm)
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