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3 a b u s t e r m i n a t i o n r e g u l a t o r c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 1 a n p e c r e s e r v e s t h e r i g h t t o m a k e c h a n g e s t o i m p r o v e r e l i a b i l i t y o r m a n u f a c t u r a b i l i t y w i t h o u t n o t i c e , a n d a d v i s e c u s t o m e r s t o o b t a i n t h e l a t e s t v e r s i o n o f r e l e v a n t i n f o r m a t i o n t o v e r i f y b e f o r e p l a c i n g o r d e r s . sourcing and sinking current up to 3a wide input voltage range: 1.2v to 3.6v vtt and vttref voltage tracks at half the vref voltage vtt and vttref voltage with 20mv accuracy excellent load transient response - droop compensation - fast loop response stable with 20 m f ceramic output capacitors current limit protection thermal shutdown protection power-on-reset function on vcntl s3, s5 input signals for acpi states available in a thermal enhanced msop-10p package lead free available (rohs compliant) f e a t u r e s a p p l i c a t i o n s ddr 1/2/3 memory termination sstl-2, stl-18 and hstl termination g e n e r a l d e s c r i p t i o n t h e a p l 5 3 3 3 l i n e a r r e g u l a t o r i s d e s i g n e d t o p r o v i d e a r e g u l a t e d v o l t a g e w i t h b i - d i r e c t i o n a l o u t p u t c u r r e n t f o r d d r - s d r a m t e r m i n a t i o n . t h e a p l 5 3 3 3 i n t e g r a t e s t w o p o w e r t r a n s i s t o r s t o s o u r c e o r s i n k c u r r e n t u p t o 3 a . i t a l s o i n c o r p o r a t e c u r r e n t - l i m i t , t h e r m a l s h u t d o w n i n t o a s i n g l e c h i p . t h e o u t p u t v o l t a g e o f a p l 5 3 3 3 t r a c k s t h e v o l t a g e a t v r e f p i n . a n i n t e r n a l r e s i s t o r d i v i d e r i s u s e d t o p r o v i d e a h a l f v o l t a g e o f v r e f f o r v t t r e f a n d v t t v o l t a g e . t h e v t t o u t p u t v o l t a g e i s o n l y r e q u i r i n g 2 0 m f o f c e r a m i c o u t p u t c a p a c i t a n c e f o r s t a b i l i t y a n d f a s t t r a n s i e n t r e s p o n s e . t h e s 3 a n d s 5 p i n s p r o v i d e t h e s l e e p s t a t e f o r v t t ( s 3 s t a t e ) a n d s u s p e n d s t a t e ( s 4 / s 5 s t a t e ) f o r d e v i c e , w h e n s 5 a n d s 3 a r e b o t h p u l l e d l o w t h e d e v i c e p r o v i d e s t h e s o f t - o f f f o r v t t a n d v t t r e f . t h e m s o p - 1 0 p p a c k a g e w i t h a c o p p e r p a d i s a v a i l a b l e w h i c h p r o v i d e s e x c e l l e n t t h e r m a l i m p e d a n c e . s i m p l i f i e d a p p l i c a t i o n c i r c u i t v tt vref vtt vin pgnd vttsns vcntl s5 gnd s3 vttref APL5333 1 2 3 4 5 6 9 8 7 10 v in v cntl 5v o r d e r i n g a n d m a r k i n g i n f o r m a t i o n n o t e : a n p e c l e a d - f r e e p r o d u c t s c o n t a i n m o l d i n g c o m p o u n d s / d i e a t t a c h m a t e r i a l s a n d 1 0 0 % m a t t e i n p l a t e t e r m i n a t i o n f i n i s h ; w h i c h a r e f u l l y c o m p l i a n t w i t h r o h s a n d c o m p a t i b l e w i t h b o t h s n p b a n d l e a d - f r e e s o l d e r i n g o p e r a t i o n s . a n p e c l e a d - f r e e p r o d u c t s m e e t o r e x c e e d t h e l e a d - f r e e r e q u i r e m e n t s o f i p c / j e d e c j s t d - 0 2 0 c f o r m s l c l a s s i f i c a t i o n a t l e a d - f r e e p e a k r e f l o w t e m p e r a t u r e . package code xa : msop-10p temperature range i : - 40 to 85 o c handling code tr : tape & reel lead free code l : lead free device APL5333 handling code temperature range package code l5333 xxx xx APL5333 xa : x - date code lead free code
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 2 symbol parameter rating unit q ja junction to ambient resistance in free air 60 c/w symbol parameter ra nge unit v cntl v cntl to gnd 4.5~5.5 v v in vin to gnd 1.2~3.6 v v tt vtt to gnd 0.6 ~ 1.8 v v ref vref to gnd 1.2 ~ 3.6 v i vtt vtt output current (note 4) - 3~+3 a c in vin input capacitor 4.7~100 m f c out capacitance of vtt o ut put mult i - layer ceramic capacitor (mlcc) 4.7~47 m f t a ambient temperature - 40~+80 o c t j junction temperature - 40~+125 o c a b s o l u t e m a x i m u m r a t i n g s (note 1) symbol parameter rating unit v cntl vcntl supply voltage (v cntl to gnd ) - 0.3~6 v v in vin supply voltage (vin to gnd) - 0.3~6 v v tt vtt output voltage (vtt to gnd) - 0.3~6 v v ttref vttref output voltage (vttref to gnd) - 0.3~6 v vttsns, vref, s3 and s5 vo ltage - 0.3 ~6 v pgnd to gnd voltage - 0.3~0.3 v t j maximum junction temperature 150 o c t stg storage temperature range - 65 to 150 o c t sdr maximum lead soldering temperature 260, 10 s ec o c t h e r m a l c h a r a c t e r i s t i c (note 2) n o t e 2 : q j a i s m e a s u r e d w i t h t h e c o m p o n e n t m o u n t e d o n a h i g h e f f e c t i v e t h e r m a l c o n d u c t i v i t y t e s t b o a r d i n f r e e a i r . r e c o m m e n d e d o p e r a t i n g c o n d i t i o n s (note 3) p i n c o n f i g u r a t i o n n o t e 3 : refer to the typical application circuit note 4 : if the vtt output current is ?+3a?, then vtt source would be 3a current, and vice versa. n o t e 1 : a b s o l u t e m a x i m u m 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 h i c h t h e l i f e o f a d e v i c e m a y b e i m p a i r e d . e x p o s u r e t o a b s o l u t e m x i m u m r a t i n g c o n d i t i o n s f o r e x t e n d e d p e r i o d 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 . vin 2 vtt 3 8 gnd pgnd 4 6 vttref 9 s5 7 s3 vref 1 vttsns 5 10 vcntl msop-10p APL5333
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 3 v cntl =5v, v in =v ref =1.8v, t a = -40 to 85 c, unless otherwise specified. typical values refer to t a =25 c. APL5333 symbol parameter test conditions min typ max unit supply current i vcntl vcntl supply current t a =25 o c , v s3 =v s5 =5v, no load 0.3 0.7 2 ma vcntl stan d by current t a =25 o c , v s3 =0v, v s5 =5v, no load 20 40 80 vcntl shutdown current t a =25 o c , v s3 =v s5 =0v, no load v in =v ref =0v - 0.04 1.0 m a i vin vin supply current t a =25 o c , v s3 =v s5 =5v, no load 0.7 2 4 ma vin stan d by current t a =25 o c , v s3 =0v, v s5 =5v, no load - 6 10 vin shutdown current t a =25 o c , v s3 =v s5 =0v, no load - 0.3 1.0 m a input current i vref vref input current v s3 =v s5 =5v 1 3 5 i vttsns vttsns input current v s3 =v s5 =5v - 1.00 - 1.00 m a power - on - reset v cntl por threshold v cntl rising 3.6 3.8 4.0 v v cntl por hysteresis 0.1 0.2 0.3 v vtt output v in =v ref =2.5v - 1.25 - v in =v ref =1.8v - 0.9 - v tt vtt output voltage v in =v ref =1.5v - 0.75 - v v in =v ref =2.5v, i vtt =0a - 20 - 20 v in =v ref =2.5v, i vtt = 1.5a - 30 - 30 v in =v ref =2.5v, i vtt = 3a - 40 - 40 v in =v ref =1.8v, i vtt =0a - 20 - 20 v in =v ref =1.8v , i vtt = 1a - 30 - 30 v in =v ref =1.8v, i vtt = 2a - 40 - 40 v in =v ref =1.5v, i vtt =0a - 20 - 20 v in =v ref =1.5v, i vtt = 1a - 30 - 30 vtt output voltage tolerance v in =v ref =1.5v, i vtt = 2a - 40 - 40 mv vtt current limit v tt < 0.5 x v ref x 1.05 and v tt > 0.5 x v ref x 0.95 3.3 3. 8 4. 5 vtt short circuit current limit v tt > 0.5 x v ref x 1.1 or v tt < 0.5 x v ref x 0.9 1 1.7 2.3 a upper mosfet - 230 330 r ds(on) internal power mosfets r ds(on) lower mosfet - 230 330 m w vtt leakage current v tt =1.25v, v s3 =0v, v s5 =5v, t a =25 o c - 2.5 4.0 m a vttsns leakage current v tt =1.25v, t a =25 o c - 1.00 - 1.00 m a vtt discharge current v tt =0.5v, v s3 =v s5 =0v, t a =25 o c v ref =0v 20 35 50 ma 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
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 4 APL5333 symbol parameter test conditions min typ max unit v tt ref output v in =v ref =2.5v - 1.25 - v in =v ref =1.8v - 0.9 - v ttref vttref output voltage v in =v ref =1.5v - 0.75 - v vttref output voltage tolerance v in =v ref, i vttref <10ma - 20 - +20 mv i vttref vttref source current limit v ttref =0v 10 20 30 ma i vrefdis vttref discharge current v ttref =2.5v, v s3 =v s5 =0v, t a =25 o c 1 2 3 ma logic threshold v ih high threshold voltage v s3 , v s5 rising 1.6 - - v v il low threshold voltage v s3 , v s5 falling - - 0.3 v leakage current s3, s5, t a =25 o c - 1 - 1 m a thermal shutdown t sd thermal shutdown temperature t j rising - 150 - o c thermal shutdown hysteresis - 3 0 - o c 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 ( c o n t . ) v cntl =5v, v in =v ref =1.8v, t a = -40 to 85 c, unless otherwise specified. typical values refer to t a =25 c.
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 5 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s f r e q u e n c y r e s p o n s e f r e q u e n c y r e s p o n s e v c n t l p s r r v c n t l s u p p l y c u r r e n t v s . v c n t l v o l t a g e ( r e f e r t o t h e s e c t i o n ? t y p i c a l a p p l i c a t i o n c i r c u i t s ? , v c n t l = 5 v , v i n = v r e f = 1 . 8 v , v t t = 0 . 9 v , t a = 2 5 o c ) g a i n ( d b ) -80 -60 -40 -20 0 20 40 1000 10000 100000 1000000 frequency (hz) v tt =1.25v, i vtt =+2.5a v tt =0.75v, i vtt =+2.5a frequency (hz) p h a s e ( d e g r e e ) -100 -50 0 50 100 150 200 1000 10000 100000 1000000 v tt =1.25v, i vtt =+2.5a v tt =0.75v, i vtt =+2.5a d r o p o u t v o l t a g e v s . v t t o u t p u t c u r r e n t d r o p o u t v o l t a g e v s . v t t o u t p u t c u r r e n t frequency (hz) p s r r ( d b ) -60 -50 -40 -30 -20 -10 0 1000 10000 100000 v tt =0.9v, i vtt =+1.5a v tt =0.75v, i vtt =+1.5a v tt =1.25v, i vtt =+1.5a 0 100 200 300 400 500 600 700 800 900 1000 0 1 2 3 d r o p o u t v o l t a g e , v d r o p ( m v ) vtt output current, i vtt (a) v tt =0.75v t j =-50 o c t j =-25 o c t j =25 o c t j =75 o c t j =125 o c 0 100 200 300 400 500 600 700 800 900 1000 0 1 2 3 d r o p o u t v o l t a g e , v d r o p ( m v ) vtt output current, i vtt (a) v tt =0.9v t j =-50 o c t j =-25 o c t j =25 o c t j =75 o c t j =125 o c v vcntl =5v 0 100 200 300 400 500 600 700 800 0 1 2 3 4 5 6 vcntl voltage, v cntl (v) v c n t l s u p p l y c u r r e n t , i v c n t l ( g a ) s3=s5=high
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 6 t y p i c a l o p e r a t i n g c h a r a c t e r i s t i c s ( c o n t . ) d r o p o u t v o l t a g e v s . v t t o u t p u t c u r r e n t v t t r e f a n d v t t o f f s e t v o l t a g e v s . j u n c t i o n t e m p e r a t u r e v t t l o a d r e g u l a t i o n v s . o u t p u t c u r r e n t ( r e f e r t o t h e s e c t i o n ? t y p i c a l a p p l i c a t i o n c i r c u i t s ? , v c n t l = 5 v , v i n = v r e f = 1 . 8 v , v t t = 0 . 9 v , t a = 2 5 o c ) 0 200 400 600 800 1000 1200 0 1 2 3 d r o p o u t v o l t a g e , v d r o p ( m v ) vtt output current, i vtt (a) v tt =1.25v t j =-50 o c t j =-25 o c t j =25 o c t j =75 o c t j =125 o c v t t s o u r c e c u r r e n t l i m i t v s . j u n c t i o n t e m p e r a t u r e -10 -8 -6 -4 -2 0 2 4 6 8 10 -50 -25 0 25 50 75 100 125 junction temperature ( o c ) v t t r e f a n d v t t o f f s e t v o l t a g e ( m v ) i vtt =-10ma i vtt =10ma junction temperature ( o c ) v t t s o u r c i n g c u r r e n t l i m i t ( a ) 0 1 2 3 4 5 -50 -25 0 25 50 75 100 125 150 v in =1.8v -30 -20 -10 0 10 20 30 -3 -2 -1 0 1 2 3 output current, i vtt (a) v t t l o a d r e g u l a t i o n ( m v ) v tt =0.9v
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 7 o p e r a t i n g w a v e f o r m s (refer to the section ?typical application circuits?, v cntl =5v, v in =v ref =1.8v, v tt =0.9v, t a =25 o c) s5 low to high ch1 : v s5 , 5v/div time : 10 m s/div ch3 :v ttref , 1v/div ch4 : v tt , 1v/div 2 1 3 4 ch2 : v s3 , 5v/div v s 5 v ttref v s 3 v tt 2 1 3 4 v s 5 v ttref v s3 v tt s5 high to low ch1 : v s5 , 5v/div time : 20 m s/div ch3 :v ttref , 1v/div ch4 : v tt , 1v/div ch2 : v s3 , 5v/div power on ch1 : v cntl , 5v/div time : 2ms/div ch3 : v tt , 500mv/div ch4 : i v tt , 1a/div 2 1 3 4 ch2 : v in , 1v/div v cntl v tt v in i v tt r load =1 w 2 1 3 4 power off v cntl v tt v in i v tt ch1 : v cntl , 5v/div time : 5ms/div ch3 : v tt , 500mv/div ch4 : i v tt , 1a/div ch2 : v in , 1v/div r load =1 w
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 8 o p e r a t i n g w a v e f o r m s ( c o n t . ) (refer to the section ?typical application circuits?, v cntl =5v, v in =v ref =1.8v, v tt =0.9v, t a =25 o c) s3 low to high 2 1 3 4 ch1 : v s5 , 5v/div time : 20 m s/div ch3 :v ttref , 1v/div ch4 : v tt , 1v/div ch2 : v s3 , 5v/div v s 5 v ttref v s 3 v tt s3 and s5 high to low v s 5 v ttref v s 3 v tt ch1 : v s5 , 5v/div time : 5ms/div ch3 :v ttref , 1v/div ch4 : v tt , 1v/div ch2 : v s3 , 5v/div 2 1 3 4 current limit and short circuit current limit ch1 : v in , 2v/div time : 500 m s/div ch3 : v tt , 500mv/div ch4 : i v tt , 2a/div ch2 : v ttref , 1v/div v in v ttref i v tt v tt 1 2 3 4
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 9 p i n d e s c r i p t i o n pin no. pin name description 1 vref reference voltage input for vtt and vttref regulator. 2 vin power input for vtt and vttref pin. an input capacitor should be connected from vin to pgnd. 3 vtt vtt output voltage pin. source and sink current up to 3a. to insure the stability issue, the output capacitor typical 20 m f(10 m f*2) should be connected from vtt to pgnd. 4 pgnd power ground for vin and vtt. 5 vttsns voltage sense for vtt. connect to the positive node of v tt output capacitors. 6 vttref vtt reference output pin. a small capacitor 0.1 m f should be connected from vttref to gnd. 7 s3 s3 signal input. 8 gnd signal ground. 9 s5 s5 signal input 10 vcntl power input for internal control circuitry. a bypass capacitor 0.1 m f should be connected near the pin. b l o c k d i a g r a m t y p i c a l a p p l i c a t i o n c i r c u i t v tt 1.25/0.9/0.75v -3~+3a vref vtt vin pgnd vttsns vcntl s5 gnd s3 vttref APL5333 1 2 3 4 5 6 9 8 7 10 c out 2x10 m f c1 0.1 m f v in 2.5/1.8/1.5v v cntl 5v c2 0.1 m f c in 10 m f soft-start and control logic por thermal shutdown current limit vref vcntl s3 s5 pgnd vtt vttref vin vttsns gnd
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 1 0 f u n c t i o n d e s c r i p t i o n v t t s o u r c e / s i n k r e g u l a t o r t h e a p l 5 3 3 3 i s a l o w d r o p o u t s o u r c e / s i n k l i n e a r r e g u l a t o r w i t h m a x i m u m 3 a s o u r c e / s i n k c u r r e n t . t w o i n t e r n a l n - c h a n n e l m o s f e t s c o n t r o l l e d b y s e p a r a t e h i g h b a n d w i d t h e r r o r a m p l i f i e r s r e g u l a t e t h e o u t p u t v o l t a g e b y s o u r c i n g c u r r e n t f r o m v i n o r s i n k i n g c u r r e n t t o p g n d . t o p r e v e n t t w o p a s s e l e m e n t s f r o m s h o o t - t h r o u g h , a v o l t a g e o f f s e t i s c r e a t e d b e t w e e n t w o p o s i t i v e i n p u t s o f t h e e r r o r amplifiers. the APL5333 has a droop compensation for minimizing the amplitude of the peak-to-peak vtt volt- age during load transient response. the droop voltage, added to the reference voltage applied to the positive input s, is regulated by and proportional to the vtt sourc - ing and sinking output current. therefore, the droop volt- age is positive at sinking current and negative at sourc- ing current. typical droop voltage is within 40mv in all conditions. p o w e r - o n - r e s e t ( p o r ) t h e a p l 5 3 3 3 m o n i t o r s t h e v c n t l p i n v o l t a g e f o r p o w e r - o n - r e s e t f u n c t i o n t o p r e v e n t erroneous o p e r a t i o n . t h e b u i l t - i n p o r c i r c u i t k e e p s t h e o u t p u t s s h u t o f f u n t i l i n t e r n a l c i r c u i t i s o p e r a t i n g p r o p e r l y . t y p i c a l p o r t h r e s h - o l d i s 3 . 8 v w i t h 0 . 2 v h y s t e r e s i s . v t t r e f r e g u l a t o r vttref voltage follows 1/2vref voltage which is the reference of t he vtt regulator. the vttref block con sists of a resistor divider and a low pass filter. t h e r e g u l a t o r c a n s o u r c e c u r r e n t u p t o 1 0 m a . t o i n s u r e t h e s t a b i l i t y , a 0 . 1 m f c e r a m i c c a p a c i t o r s h o u l d b e c o n n e c t e d f r o m v t t r e f t o g n d . s o f t - s t a r t , c u r r e n t l i m i t a n d s h o r t c i r c u i t c u r r e n t l i m i t the APL5333 provides a current limit protection to pre- vent the device from burnout. a c c o r d i n g t o t h e v o l t a g e b e t w e e n v t t a n d v t t r e f , c u r r e n t l i m i t l e v e l i s d i v i d e d i n t o t w o l e v e l s . w h e n t h e v t t v o l t a g e i s o u t o f t h e 1 0 % v t t r e f v o l t a g e , t h e c u r r e n t l i m i t i s 1 . 7 a ( t y p i c a l ) a n d v t t v o l t a g e c o m e s i n s i d e t h e 5 % o f v t t r e f v o l t a g e , t h e c u r r e n t l i m i t s w i t c h e s t o 3 . 8 a ( t y p i c a l ) . the APL5333 pr ovides a soft-start function, using the constant current to charge the output capacitor that gives a rapid and lin ear state s3 s5 vttref vtt s0 h h 1 1 s3 l h 1 0 (high - z) s4/5 l l 0 (discharge) 0 (discharge) table1. the truth table of s3 and s5 pins s 3 , s 5 c o n t r o l t h e s 3 a n d s 5 s i g n a l s c o n t r o l t h e v t t a n d v t t r e f s t a t e s a n d t h e s e p i n s s h o u l d b e c o n n e c t e d t o s l p _ s 3 a n d s l p _ s 5 s i g n a l s r e s p e c t i v e l y . t h e t a b l e 1 s h o w s t h e t r u t h t a b l e o f t h e s 3 a n d s 5 p i n s . w h e n b o t h s 3 a n d s 5 a r e a b o v e t h e l o g i c t h r e s h o l d v o l t a g e , t h e v t t a n d v t t r e f a r e t u r n e d o n a t s 0 s t a t e . w h e n s 3 i s l o w a n d s 5 i s h i g h , t h e v t t v o l t a g e i s d i s a b l e d a n d l e f t h i g h i m p e d a n c e i n s 3 s t a t e . w h e n b o t h s 3 a n d s 5 a r e l o w , t h e v t t a n d v t t r e f a r e t u r n e d o f f a n d d i s c h a r g e d t o t h e g r o u n d t h r o u g h i n t e r - n a l m o s f e t s d u r i n g s 4 / s 5 s t a t e . ( n o t e t h a t i f t h e s 3 i s f o r c e d h i g h a n d s 5 i s f o r c e d l o w , t h e n v t t r e f i s d i s - c h a r g e d a n d v t t i s a t h i g h - z s t a t e . s u c h c o n d i t i o n i s n o t r e c o m m e n d e d . ) t h e r m a l s h u t d o w n a t h e r m a l s h u t d o w n c i r c u i t l i m i t s t h e j u n c t i o n t e m p e r a - t u r e o f t h e a p l 5 3 3 3 . w h e n t h e j u n c t i o n t e m p e r a t u r e e x - c e e d s + 1 5 0 c , t h e d e v i c e w i l l t u r n o f f t h e m o s f e t s , a l l o w i n g t h e d e v i c e t o c o o l d o w n . t h e r e g u l a t o r r e g u l a t e s t h e o u t p u t a g a i n t h r o u g h i n i t i a t i o n o f a n e w s o f t - s t a r t c y c l e a f t e r t h e j u n c t i o n t e m p e r a t u r e c o o l s b y 3 0 o c , r e s u l t i n g i n a p u l s e d o u t p u t d u r i n g c o n t i n u o u s t h e r m a l o v e r l o a d c o n d i t i o n s . t h e t h e r m a l s h u t d o w n d e s i g n e d w i t h a 3 0 c h y s t e r e s i s l o w e r s t h e a v e r a g e j u n c t i o n t e m p e r a t u r e d u r i n g c o n t i n u o u s t h e r m a l o v e r l o a d c o n d i t i o n s , e x t e n d - i n g l i f e t i m e o f t h e d e v i c e . f o r n o r m a l o p e r a t i o n , d e v i c e p o w e r d i s s i p a t i o n s h o u l d b e e x t e r n a l l y l i m i t e d s o t h a t j u n c t i o n t e m p e r a t u r e s w i l l n o t e x c e e d + 1 2 5 c . output voltage rise. i f t h e l o a d c u r r e n t i s a b o v e t h e c u r r e n t l i m i t 1 . 7 a a t s t a r t - u p , t h e v t t c a n n o t s t a r t s u c e s s f u l l y .
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 1 1 i n p u t c a p a c i t o r t h e a p l 5 3 3 3 r e q u i r e s p r o p e r i n p u t c a p a c i t o r s t o s u p p l y s u r g e c u r r e n t d u r i n g s t e p p i n g l o a d t r a n s i e n t s t o p r e v e n t t h e i n p u t r a i l f r o m d r o p p i n g . b e c a u s e t h e p a r a s i t i c i n d u c - t o r f r o m t h e v o l t a g e s o u r c e s o r o t h e r b u l k c a p a c i t o r s t o t h e v i n l i m i t s t h e s l e w r a t e o f t h e s u r g e c u r r e n t , i t i s n e c - e s s a r y t o p l a c e t h e i n p u t c a p a c i t o r s n e a r v i n a s c l o s e a s p o s s i b l e . i n p u t c a p a c i t o r s s h o u l d b e g r e a t e r t h a n 4 . 7 m f . a capacitor of 0.47 m f (mlcc) or above is recommended for vcntl pin noise decoupling. o u t p u t c a p a c i t o r t h e a p l 5 3 3 3 n e e d s a p r o p e r o u t p u t c a p a c i t o r t o m a i n - t a i n c i r c u i t s t a b i l i t y a n d i m p r o v e t r a n s i e n t r e s p o n s e o v e r t e m p e r a t u r e a n d c u r r e n t . i n o r d e r t o i n s u r e t h e c i r c u i t s t a b i l i t y , a 4.7 m f mlcc (minimum) as an output capaci- tor must be placed near the vtt. w i t h x 5 r a n d x 7 r d i e l e c t r i c s , 2 0 m f i s s u f f i c i e n t a t a l l o p e r a t i n g t e m p e r a t u r e s . a t t a c h i n g t w o 1 0 m f c e r a m i c c a p a c i t o r s i n p a r a l l e l , t h e e f - f e c t s f r o m e s r a n d e s l c a n b e m i n i m i z e d . t h e r m a l c o n s i d e r a t i o n t h e a p l 5 3 3 3 m a x i m u m p o w e r d i s s i p a t i o n d e p e n d s o n t h e d i f f e r e n c e s o f t h e t h e r m a l r e s i s t a n c e a n d t e m p e r a - t u r e b e t w e e n j u n c t i o n a n d a m b i e n t a i r . t h e p o w e r d i s s i - p a t i o n p d a c r o s s t h e d e v i c e i s : p d = ( t j - t a ) / c j a w h e r e ( t j - t a ) i s t h e t e m p e r a t u r e d i f f e r e n c e b e t w e e n t h e j u n c t i o n a n d a m b i e n t a i r . c j a i s t h e t h e r m a l r e s i s t a n c e b e t w e e n j u n c t i o n a n d a m b i e n t a i r . a s s u m i n g t h e t a = 2 5 c a n d m a x i m u m t j = 1 5 0 c ( t y p i c a l t h e r m a l l i m i t t h r e s h o l d ) , t h e m a x i m u m p o w e r d i s s i p a t i o n i s c a l c u l a t e d a s : a p p l i c a t i o n i n f o r m a t i o n p d ( m a x ) = ( 1 5 0 - 2 5 ) / 6 0 = 2 . 0 8 ( w ) f o r n o r m a l o p e r a t i o n , d o n o t e x c e e d t h e m a x i m u m o p e r - a t i n g j u n c t i o n t e m p e r a t u r e o f t j = 1 2 5 c . t h e c a l c u l a t e d p o w e r d i s s i p a t i o n s h o u l d b e l e s s t h a n : l a y o u t c o n s i d e r a t i o n f i g u r e 1 i l l u s t r a t e s t h e l a y o u t . b e l o w i s a c h e c k l i s t f o r y o u r l a y o u t : 1 . p l e a s e p l a c e t h e i n p u t c a p a c i t o r s c l o s e t o t h e v i n . 2 . o u t p u t c a p a c i t o r s f o r v t t m u s t b e c l o s e t o t h e p i n w i t h s h o r t a n d w i d e t r a c k . 3 . v t t s n s s h o u l d b e c o n n e c t e d t o t h e o u t p u t c a p a c i t o r s o f v t t s e p a r a t e d f r o m l a r g e c u r r e n t p a t h t o a v o i d e f - f e c t o f e s r a n d e s l . t h e e s r a n d e s l o f g r o u n d t r a c k b e t w e e n v t t a n d g n d s h o u l d b e m i n i m i z e d . 4 . vref should be connected to vin by a separate track. vref is the reference voltage of vttref, so avoid any noise to get into the vref. 5. pgnd is the ground of vin and vtt. g n d i s t h e s i g n a l g r o u n d o f v r e f , v t t r e f s 3 a n d s 5 . g n d a n d p g n d s h o u l d b e i s o l a t e d w i t h a s i n g l e p o i n t c o n n e c t i o n b e - t w e e n t h e m . 6 . s o l d e r i n g t h e e x p o s e d p a d t o g r o u n d i s g o o d f o r h e a t s i n k i n g . n u m e r o u s v i a s 0 . 3 3 m m i n d i a m e t e r c o n - n e c t e d f r o m t h e t h e r m a l l a n d t o t h e i n t e r n a l / s o l d e r - s i d e g r o u n d p l a n e ( s ) s h o u l d b e u s e d t o e n h a n c e d i s s i p a t i o n . l a r g e g r o u n d p l a n e i s g o o d f o r h e a t s i n k i n g . o p t i m u m p e r f o r m a n c e c a n o n l y b e a c h i e v e d w h e n t h e d e v i c e i s m o u n t e d o n a p c b o a r d a c c o r d i n g t o t h e b o a r d l a y o u t d i a g r a m s w h i c h a r e s h o w n a s f i g u r e 2 . f i g u r e 1 v tt vref vtt vin pgnd vttsns vcntl s5 gnd s3 vttref APL5333 1 2 3 4 5 6 9 8 7 10 c in c out c1 v in v cntl 5v c2 p d = ( 1 2 5 - 2 5 ) / 6 0 = 1 . 6 6 ( w ) t h e exposed pad p r o v i d e s a n e l e c t r i c a l c o n n e c t i o n t o g r o u n d a n d c h a n n e l s h e a t a w a y . c o n n e c t t h e exposed pad t o g r o u n d b y u s i n g a l a r g e g r o u n d p l a n e .
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 1 2 a p p l i c a t i o n i n f o r m a t i o n ( c o n t . ) l a y o u t c o n s i d e r a t i o n ( c o n t . ) f i g u r e 2 r e c o m m e n d e d l a y o u t recommended minimum footprint APL5333 vin vtt pgnd gnd c out for dissipating heat vcntl c in c1 c2 pgnd gnd 0 . 1 8 1 0 . 0 6 1 0.020 0.010 1 2 3 4 8 7 6 5 0 . 0 9 8 0.098 unit : inch 10 9 8 7 5 6
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 1 3 p a c k a g e i n f o r m a t i o n m s o p - 1 0 p a 0 l view a 0 . 2 5 gauge plane seating plane a 1 see view a a 2 c s y m b o l min. max. 1.10 0.00 0.17 0.33 0.08 0.23 0.15 a a1 b c d e e1 e l millimeters a2 0.75 0.95 0.50 bsc msop-10p 0.40 0.80 0.020 bsc min. max. inches 0.043 0.000 0.030 0.037 0.007 0.013 0.003 0.009 0.016 0.031 0 0.006 0 8 0 8 4.70 5.10 2.90 3.10 2.90 3.10 0.114 0.122 0.185 0.201 0.114 0.122 note: 1. follow jedec mo-187 ba-t. 2. dimension ? d ? does not include mold flash, protrusions or gate burrs. mold flash, protrusion or gate burrs shall not flash or protrusions. 3. dimension ? e1 ? does not include inter-lead flash or protrusions. inter-lead flash and protrusions shall not exceed 6 mil per side. exposed pad e b d d1 e 1 e 2 e e2 1.50 2.50 0.059 0.098 d1 1.50 2.50 0.059 0.098
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 1 4 d e v i c e s p e r u n i t package type unit quantity m sop - 10 p tape & reel 3000 c a r r i e r t a p e & r e e l d i m e n s i o n s application a h t1 c d d w e1 f 330.0 ? 2.00 50 min. 12.4+2.00 - 0.00 13.0+0.50 - 0.20 1.5 min. 20.2 min. 12.0 ? 0.30 1.75 ? 0.10 5.5 ? 0.10 p 0 p1 p 2 d 0 d1 t a 0 b 0 k 0 msop - 10p 4.00 ? 0.10 8.00 ? 0.10 2.00 ? 0.10 1.5+0.10 - 0.00 1.5 min. 0.6+0.00 - 0.40 6.70 ? 0.20 3.30 ? 0.20 1.40 ? 0.20 (mm) h t1 a d a e 1 a b w f t p0 od0 b a0 p2 k0 b 0 section b-b section a-a od1 p1
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 1 5 test item method description solderability mil - std - 883d - 2003 245 c, 5 sec holt mil - std - 883d - 1005.7 1000 hrs bias @125 c pct jesd - 22 - b,a102 168 hrs, 100 % rh, 121 c tst mil - std - 883d - 1011.9 - 65 c~150 c, 200 cycles esd mil - std - 883d - 3015.7 vhbm > 2kv, vmm > 200v latch - up jesd 78 10ms, 1 tr > 100ma r e f l o w c o n d i t i o n ( i r / c o n v e c t i o n o r v p r r e f l o w ) c l a s s i f i c a t i o n r e f l o w p r o f i l e s profile feature sn - pb eutectic assembly pb - free assembly average ramp - up rate (t l to t p ) 3 c/second max. 3 c/second max. preheat - temperature min (tsmin) - temperature max (tsmax) - time (min to max) (ts) 100 c 150 c 60 - 120 seconds 150 c 200 c 60 - 180 seconds time maintained above: - temperature (t l ) - time (t l ) 183 c 60 - 150 seconds 217 c 60 - 150 seconds peak /classification temperature (tp) see table 1 see table 2 time within 5 c of actual peak temperature (tp) 10 - 30 seconds 20 - 40 seconds ramp - down rate 6 c/sec ond max. 6 c/second max. time 25 c to peak temperature 6 minutes max. 8 minutes max. note: all temperatures refer to topside of the package. measured on the body surface. t 25 c to peak tp ramp-up t l ramp-down ts preheat tsmax tsmin t l t p 25 t e m p e r a t u r e time critical zone t l to t p r e l i a b i l i t y t e s t p r o g r a m
c o p y r i g h t ? a n p e c e l e c t r o n i c s c o r p . r e v . a . 1 - f e b . , 2 0 0 8 a p l 5 3 3 3 w w w . a n p e c . c o m . t w 1 6 table 2. pb - free process ? package classification reflow temperatures package thickness volume mm 3 <350 volume mm 3 350 - 2000 volume mm 3 >2000 <1.6 mm 260 +0 c* 260 +0 c* 260 +0 c* 1.6 mm ? 2.5 mm 260 +0 c* 250 +0 c* 245 +0 c* 3 2.5 mm 250 +0 c* 245 +0 c* 245 +0 c* * tolerance: the device manufacturer/supplier shall assure process compatibility up to and including the stated classification temperature (this means peak reflow temperature +0 c. for example 260 c+0 c) at the rated msl level. c u s t o m e r s e r v i c e table 1. snpb eutectic process ? package peak reflow temperature s package thickness volume mm 3 <350 volume mm 3 3 350 <2.5 mm 240 +0/ - 5 c 225 +0/ - 5 c 3 2.5 mm 225 +0/ - 5 c 225 +0/ - 5 c c l a s s i f i c a t i o n r e f l o w p r o f i l e s ( c o n t . ) a n p e c e l e c t r o n i c s c o r p . head office : no.6, dusing 1st road, sbip, hsin-chu, taiwan, r.o.c. tel : 886-3-5642000 fax : 886-3-5642050 t a i p e i b r a n c h : 2 f , n o . 1 1 , l a n e 2 1 8 , s e c 2 j h o n g s i n g r d . , s i n d i a n c i t y , t a i p e i c o u n t y 2 3 1 4 6 , t a i w a n t e l : 8 8 6 - 2 - 2 9 1 0 - 3 8 3 8 f a x : 8 8 6 - 2 - 2 9 1 7 - 3 8 3 8

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