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C p a g e 1 o f 1 8 v 4 . 0 a a t 1 1 0 2 p r o d u c t i n f o r m a t i o n p r e s e n t e d i s c u r r e n t a s o f p u b l i c a t i o n d a t e . d e t a i l s a r e s u b j e c t t o c h a n g e w i t h o u t n o t i c e a d v a n c e d p w m d c - d c c o n v e r t e r w i t h i n t e r n a l s w i t c h a n d s o f t - s t a r t f e a t u r e s 1 . 6 a , 0 . 2 3 , i n t e r n a l s w i t c h h i g h e f f i c i e n c y : 9 0 % a d j u s t a b l e o u t p u t : d d v t o 1 2 . 5 v a d j u s t a b l e f r e q u e n c y : 6 4 0 k h z o r 1 . 3 m h z w i d e i n p u t r a n g e : + 2 . 6 v t o + 5 . 5 v l o w s h u t d o w n c u r r e n t : a 1 . 0 p r o g r a m m a b l e s o f t - s t a r t s m a l l 8 - p i n m s o p p a c k a g e p i n c o n f i g u r a t i o n g e n e r a l d e s c r i p t i o n t h e a a t 1 1 0 2 i s a s t e p - u p d c - d c c o n v e r t e r w i t h a 1 . 6 a , 2 3 . 0 i n t e r n a l s w i t c h . e q u i p p e d w i t h a n e x t e r n a l c o m p e n s a t i o n p i n , t h i s d e v i c e o f f e r s u s e r f l e x i b i l i t y i n d e t e r m i n i n g l o o p d y n a m i c a n d a d j u s t i n g o p e r a t i n g f r e q u e n c y . a a t 1 1 0 2 a l s o a l l o w s t h e u s e o f s m a l l , l o w e q u i v a l e n t r e s i s t a n c e ( e s r ) c e r a m i c o u t p u t c a p a c i t o r , a n d i t s c a p a b l e o f c o n v e r t i n g a s t a n d a r d i n p u t o f 3 . 3 v t o m u l t i p l e o u t p u t s o f 8 v , v 8 , a n d 2 3 v . f u r t h e r m o r e , f i l t e r i n g a n d l o o p p e r f o r m a n c e a r e f a c i l i t a t e d a n d e n h a n c e d b y a h i g h s w i t c h i n g f r e q u e n c y o f e i t h e r 6 4 0 k h z o r 1 . 3 m h z . t h e a a t 1 1 0 2 s v e r s a t i l i t y c o m e s w i t h a p o w e r - s m a r t d e s i g n . a s o f t - s t a r t p r o g r a m m e d w i t h a n e x t e r n a l c a p a c i t o r t h a t s e t s t h e i n p u t c u r r e n t r a m p r a t e , r e d u c e s t h e c u r r e n t c o n s u m p t i o n t o a 1 . 0 i n s h u t d o w n m o d e . w h e n o p e r a t i n g , a m e r e 2 . 6 v i n p u t y i e l d s a n i m p r e s s i v e o u t p u t v o l t a g e a s h i g h a s 1 2 . 5 v . h i g h s w i t c h i n g f r e q u e n c y a n d e c o n o m i c a l d e s i g n a l l o w a a t 1 1 0 2 t o b e l e s s t h a n 1 . 1 m m h i g h . i t s c o m p a c t 8 - p i n m s o p p a c k a g e a n d s u p e r i o r p e r f o r m a n c e m a k e i t a n i d e a l p a r t f o r b i a s i n g t f t d i s p l a y s . a a t 1 1 0 2 8 7 6 5 1 2 3 4 s s f r e q v d d s w e o i n g n d s h d n 8 - p i n m s o p t o p v i e w

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C p a g e 2 o f 1 8 v 4 . 0 a a t 1 1 0 2 p i n d e s c r i p t i o n s p i n n a m e f u n c t i o n 1 e o c o m p e n s a t i o n p i n f o r e r r o r a m p l i f i e r 2 i n f e e d b a c k p i n w i t h a t y p i c a l r e f e r e n c e v o l t a g e o f 1 . 2 4 v , o u t v = i n ( 1 + r 2 r 1 ) 3 s h d n s h u t d o w n c o n t r o l p i n . t h e d e v i c e w i l l t u r n o f f w h e n s h d n i s l o w 4 g n d g r o u n d 5 s w s w i t c h p i n 6 d d v p o w e r s u p p l y p i n 7 f r e q f r e q u e n c y s e l e c t p i n . s w i t c h o s c i l l a t o r f r e q u e n c y t o 6 4 0 k h z w h e n f r e q i s l o w , a n d 1 . 3 m h z w h e n f r e q i s h i g h 8 s s s o f t - s t a r t c o n t r o l p i n . n o s o f t - s t a r t w h e n t h e p i n i s l e f t o p e n a b s o l u t e m a x i m u m r a t i n g s p a r a m e t e r s y m b o l v a l u e u n i t s w t o g n d 3 . 0 t o + 1 8 v i n , s h d n , d d v , f r e q t o g n d 3 . 0 t o + 6 v s s , e o t o g n d 3 . 0 v t o ( d d v + 0 . 3 v ) v r m s s w p i n c u r r e n t s w i 1 . 2 a c o n t i n u o u s p o w e r d i s s i p a t i o n ( c t = 7 0 ) 8 - p i n m s o p ( d e - r a t e m w 1 . 4 / a b o v e + 7 0 ) d p 3 3 0 m w o p e r a t i o n t e m p e r a t u r e r a n g e c t 2 0 t o + 8 5 s t o r a g e t e m p e r a t u r e r a n g e s t o r a g e t 4 5 t o + 1 2 5 l e a d t e m p e r a t u r e ( s o l d e r i n g f o r 1 0 s e c o n d s ) l t + 3 0 0 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 r e s h o l d l i m i t v a l u e s t h a t m u s t n o t b e e x c e e d e d . 2 . o p e r a t i o n a b o v e t h e s e a b s o l u t e m a x i m u m r a t i n g s m a y c a u s e d e g r a d a t i o n o r p e r m a n e n t d a m a g e t o t h e d e v i c e . 3 . t h e s e a r e s t r e s s r a t i n g s o n l y a n d d o n o t n e c e s s a r i l y i m p l y f u n c t i o n a l o p e r a t i o n b e l o w t h e s e l i m i t s .

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C p a g e 3 o f 1 8 v 4 . 0 a a t 1 1 0 2 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 d d v 3 v s h d n , f r e q = g n d , u n l e s s o t h e r w i s e s p e c i f i e d . t y p i c a l v a l u e s a r e a t c t c 2 5 ) p a r a m e t e r s y m b o l c o n d i t i o n s m i n t y p m a x u n i t s i n p u t s u p p l y v o l t a g e r a n g e d d v 2 . 6 5 . 5 v d d v u n d e r v o l t a g e l o c k o u t u v l o w h e n d d v i s r i s i n g , t y p i c a l h y s t e r e s i s i s 4 0 m v ; s w r e m a i n s o f f b e l o w t h i s l e v e l 2 . 2 5 2 . 3 8 2 . 5 2 v i n v = 1 . 3 v , n o t s w i t c h i n g 0 . 2 1 0 . 3 5 q u i e s c e n t c u r r e n t d d i i n v = 1 . 0 v , s w i t c h i n g 1 . 2 5 . 0 m a s h u t d o w n c u r r e n t s c i s h d n = g n d 0 . 1 1 0 . 0 a e r r o r a m p l i f i e r p a r a m e t e r s y m b o l c o n d i t i o n s m i n t y p m a x u n i t s f e e d b a c k v o l t a g e i n v l e v e l t o p r o d u c e v e o = 1 . 2 4 v 1 . 2 2 2 1 . 2 4 0 1 . 2 5 8 v d d v i n p u t b i a s c u r r e n t i n i v i n = 1 . 2 4 v 0 4 0 n a f e e d b a c k - v o l t a g e l i n e r e g u l a t i o n l e v e l t o p r o d u c e v e o = 1 . 2 4 v , 2 . 6 v < d d v < 5 . 5 v 0 . 0 5 0 . 1 5 % / v t r a n s c o n d u c t a n c e m g 5 i a 7 0 1 0 5 2 4 0 a / v v o l t a g e g a i n v a 1 , 5 0 0 v / v o s c i l l a t o r p a r a m e t e r s y m b o l c o n d i t i o n s m i n t y p m a x u n i t s f r e q = g n d 5 4 0 6 4 0 7 4 0 f r e q u e n c y o s c f f r e q = d d v 1 , 1 0 0 1 , 3 2 0 1 , 6 0 0 k h z f r e q = g n d 7 9 8 5 9 2 m a x i m u m d u t y c y c l e m a x d f r e q = d d v 8 5 %

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C p a g e 4 o f 1 8 v 4 . 0 a a t 1 1 0 2 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 3 v s h d n v d d , f r e q = g n d , u n l e s s o t h e r w i s e s p e c i f i e d . t y p i c a l v a l u e s a r e a t c 2 5 t c ) n - c h a n n e l s w i t c h p a r a m e t e r s y m b o l c o n d i t i o n s m i n t y p m a x u n i t s c u r r e n t l i m i t l i m i d d v = 1 v , d u t y c y c l e = 6 5 % 1 . 2 1 . 6 2 . 3 a o n - r e s i s t a n c e o n r s w i = 1 . 2 a 0 . 2 3 0 . 5 0 l e a k a g e c u r r e n t s w o f f i s w v = 1 2 v 0 . 0 1 2 0 . 0 0 a s o f t - s t a r t p a r a m e t e r s y m b o l c o n d i t i o n s m i n t y p m a x u n i t s r e s e t s w i t c h r e s i s t a n c e 3 0 0 c h a r g e c u r r e n t s s v = 1 . 2 v 1 . 5 4 . 0 7 . 0 a c o n t r o l i n p u t s p a r a m e t e r s y m b o l c o n d i t i o n s m i n t y p m a x u n i t s i n p u t l o w v o l t a g e i l v s h d n , f r e q ; d d v = 2 . 6 v t o 5 . 5 v 0 . 3 B d d v v i n p u t h i g h v o l t a g e i h v s h d n , f r e q ; d d v = 2 . 6 v t o 5 . 5 v 0 . 7 B d d v v h y s t e r e s i s s h d n , f r e q 0 . 1 B d d v v f r e q p u l l - d o w n c u r r e n t f r e q i 1 . 8 5 . 0 9 . 0 a s h d n i n p u t c u r r e n t s h d n i 0 . 0 0 1 1 . 0 0 0 a

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C p a g e 5 o f 1 8 v 4 . 0 a a t 1 1 0 2 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

p a g e 6 o f 1 8 v 4 . 0 a a t 1 1 0 2 f i g . 1 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 o f f o n / 5 v t o 2 . 6 v v d d

p a g e 7 o f 1 8 v 4 . 0 a a t 1 1 0 2 f i g . 2 b l o c k d i a g r a m

p a g e 8 o f 1 8 v 4 . 0 a a t 1 1 0 2 f i g . 3 a a t 1 1 0 2 i n a s e p i c c o n f i g u r a t i o n 5 v t o 2 . 6 v v d d

p a g e 9 o f 1 8 v 4 . 0 a a t 1 1 0 2 f i g . 4 m u l t i p l e - o u t p u t t f t l c d p o w e r s u p p l y

p a g e 1 0 o f 1 8 v 4 . 0 a a t 1 1 0 2 i n d u c t o r s e l e c t i o n s i n i n p e a k l l f d v i i 2 ) ( , w h e r e d i s d u t y c y c l e a n d d i i o i n 1 , o i n v v d 1 , t h e i n d u c t o r c u r r e n t r a t i n g m u s t b e g r e a t e r t h a n l ( p e a k ) i . l o o p c o m p e n s a t i o n d e s i g n f i g . 1 . c l o s e d - c u r r e n t l o o p f o r b o o s t w i t h p c m f i g . 2 . b l o c k d i a g r a m o f b o o s t c o n v e r t e r w i t h p c m p o w e r s t a g e t r a n s f e r f u n c t i o n s t h e d u t y t o o u t p u t v o l t a g e t r a n s f e r f u n c t i o n p t i s : 2 2 2 0 2 ) ) ( ( ) ( n n z e s r p o p w s w s w s w s t d v s t w h e r e c l c o p r r d r v t 1 0 , c e s r c r w 1 a n d l r d r w l z 2 2 1 , c l l n r r l c r r d w 2 1 ] 1 [ 2 ] 1 [ 2 2 l c l c l c l r d r r r l c l d r r r r r c , f d s l r d d r r r ) 1 ( l r i s t h e i n d u c t o r e q u i v a l e n t s e r i e s r e s i s t a n c e , c r i s c a p a c i t o r e s r , l r i s t h e c o n v e r t e r l o a d r e s i s t a n c e , c i s o u t p u t f i l t e r c a p a c i t o r , d s r i s t h e t r a n s i s t o r o n - r e s i s t a n c e , a n d f r i s t h e d i o d e f o r w a r d r e s i s t a n c e . t h e d u t y t o i n d u c t o r c u r r e n t t r a n s f e r f u n c t i o n p i t i s : 2 2 0 2 ) ( n n z i p i l p i w s w s w s t d i s t w h e r e , 2 0 c l c l o p i r r l r r v t c l z i r r c w 2 / 1

p a g e 1 1 o f 1 8 v 4 . 0 a a t 1 1 0 2 c u r r e n t s a m p l i n g t r a n s f e r f u n c t i o n e r r o r v o l t a g e t o d u t y t r a n s f e r f u n c t i o n m f i s : s h z i c s p i n n s e i m w s w s s r t w s w s f v d s f 0 2 2 2 2 2 ) ( w h e r e 1 1 3 s s h w w , a a m m m m 1 2 , s s f w . 2 t h e r e f o r e , m f d e p e n d s o n d u t y t o i n d u c t o r c u r r e n t t r a n s f e r f u n c t i o n p i t , a n d s f i s t h e c l o c k s w i t c h i n g f r e q u e n c y ; c s r i s t h e c u r r e n t - s e n s e a m p l i f i e r t r a n s r e s i s t a n c e . f o r t h e b o o s t c o n v e r t e r 1 m = i n v / l a n d 2 m = ( o v - i n v ) / l f o r a a t 1 1 0 2 , c s r = 0 . 2 7 5 v / a , a m i s s l o p e c o m p e n s a t i o n , a m = 0 . 8 1 0 6 . t h e c l o s e d - c u r r e n t l o o p t r a n s f e r f u n c t i o n i c l t i s : 2 2 2 2 0 2 1 2 2 1 2 ) ( s s h z i n n p i c s s i c l f s w s w s w s w s t r f s t t h e v o l t a g e - l o o p g a i n w i t h c u r r e n t l o o p c l o s e d t h e c o n t r o l t o o u t p u t v o l t a g e t r a n s f e r f u n c t i o n d t i s : ) ( ) ( ) ( ) ( ) ( s t s t s v s v s t p i c l c o d t h e v o l t a g e - l o o p g a i n w i t h c u r r e n t l o o p c l o s e d i s : ) ( ) ( ) ( s t s t s l d c v i 0 0 2 1 2 p i c s p s c c m t r t f s w s r g ) 1 2 ( 2 2 2 1 s h s z i z z f s w s w s w s w s w h e r e v o v f b , t h e c o m p e n s a t o r t r a n s f e r f u n c t i o n s w s r g v v s t c c m f b c c ) ( , w h e r e c c c c r w 1 f i g . 3 . v o l t a g e l o o p c o m p e n s a t o r c o m p e n s a t o r d e s i g n g u i d e : 1 . c r o s s o v e r f r e q u e n c y s c i f f 2 1 2 . g a i n m a r g i n > 1 0 d b 3 . p h a s e m a r g i n > 4 0 4 . t h e 1 ) ( s l v i a t c r o s s o v e r f r e q u e n c y , t h e r e f o r e , t h e c o m p e n s a t o r r e s i s t a n c e , c r i s d e t e r m i n e d b y :

p a g e 1 2 o f 1 8 v 4 . 0 a a t 1 1 0 2 d r r d r r k g c r f v v r l c l m c s c i f b o c 1 1 2 2 f b v i s e q u a l t o r e f e r e n c e v o l t a g e , r e f v . r e f v = 1 . 2 4 v , k i s t h e c o r r e c t f a c t o r , a n d ) 8 6 ( k 5 . t h e o u t p u t f i l t e r c a p a c i t o r i s c h o s e n s o c . l r p o l e c a n c e l s c r . c c z e r o c l c c r r c c r 2 3 1 , a n d c l c c r r r c c 2 3 1 e x a m p l e : i n v = 5 v , o v = 9 . 6 v , o i = 2 5 0 m a , s f = 6 0 0 k h z , f b v = 1 . 2 5 v , u h l 8 . 6 , u s g m 1 0 5 , 2 7 5 . 0 c s r v / a , 1 . 0 l r , 2 3 . 0 d s r , m r c 5 0 , k = 7 4 . 1 f r , 4 . 2 1 c i f k h z , c c = 1 . 3 n f , c r = 2 7 k , c = 4 . 7 u f f i g . 4 . c h 1 : p w m w a v e f o r m , c h 2 , p p v f o r v o f i g . 5 . b o d e d i a g r a m u s i n g m a t l a b s i m u l a t i o n

p a g e 1 3 o f 1 8 v 4 . 0 a a t 1 1 0 2 p a c k a g e d i m e n s i o n m s o p - 8

p a g e 1 4 o f 1 8 v 4 . 0 a a t 1 1 0 2 p a c k a g e d i m e n s i o n ( c o n t . ) m s o p - 8

p a g e 1 5 o f 1 8 v 4 . 0 a a t 1 1 0 2 t a p e a n d r e e l p a c k i n g m e t h o d : 2 , 5 0 0 p c s / r e e l , 1 r e e l / b o x

p a g e 1 6 o f 1 8 v 4 . 0 a a t 1 1 0 2 t a p e a n d r e e l ( c o n t . ) p a c k i n g m e t h o d : 2 , 5 0 0 p c s / r e e l , 1 r e e l / b o x

p a g e 1 7 o f 1 8 v 4 . 0 a a t 1 1 0 2 p a r t m a r k i n g m s o p 8 t o p m a r k i n g 1 1 0 2 m a a c m s o p 8 b a c k m a r k i n g y y w w

p a g e 1 8 o f 1 8 v 4 . 0 a a t 1 1 0 2 o r d e r i n g i n f o r m a t i o n

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