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SC1404ITSTR Datasheet(PDF) 4 Page - Semtech Corporation |
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SC1404ITSTR Datasheet(HTML) 4 Page - Semtech Corporation |
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4 / 27 page ![]() 4 2003 Semtech Corp. www.semtech.com SC1404 PRELIMINARY POWER MANAGEMENT R E T E M A R A PE D O CS N O I T I D N O CN I MP Y TX A MS T I N U t n e r r u C k n i S F E RK S F E R Ie g a t l o v F E R n i e s i r V m 0 10 1A µ t u o k c o L t l u a F F E R e g a t l o V V U F E Re g d e g n il l a F8 . 12 . 2V g n i t a r e p O + V t n e r r u C y l p p u S P O P V I, n o S P M S V 5 , 5 T U O V o t r e v o d e h c t i w s L V I 5 D A O L I = 3 D A O L V 0 = # E V A S P , A 0 = 0 10 5A µ y b d n a t S + V t n e r r u C y l p p u S B S P V I; V 0 = # E V A S P , f f o S P M S h t o b , V 0 3 o t V 6 = + V # N D H S o t n i t n e r r u c s e d u l c n i 0 0 3 n w o d t u h S + V t n e r r u C y l p p u S D S P V IV 0 = # N D H S , V 0 3 o t V 6 = + V1 -3 5 1 r e w o P t n e c s e i u Q n o i t p m u s n o C Q PS P M S n o d a o L o N , d e l b a n e S P M S6 W m N O I T C E T E D T L U A F p i r T e g a t l o v r e v O d l o h s e r h T V O 5 V , V O 3 Ve g a t l o v t u p t u o d e d a o l n u o t t c e p s e r h t i W7 0 15 1% t l u a F - e g a t l o v r e v O y a l e D n o i t a g a p o r P V p i r t e g a t l o v r e v o e v o b a % 2 n e v i r d t u p t u O H T 5 . 1s µ t u p t u O e g a t l o v r e d n U d l o h s e r h T V U 5 V , V U 3 Ve g a t l o v t u p t u o d e d a o l n u o t t c e p s e r h t i W5 65 75 8% t u p t u O e g a t l o v r e d n U e m i T t u o k c o L O T V U 3 V O T V U 5 V f o t t c e p s e r h t i w , d e l b a n e S P M S h c a e m o r F C S O 0 0 0 54 4 1 60 0 0 7s k l c l a m r e h T n w o d t u h S d l o h s e r h T C ° 0 1 = s i s e r e t s y h l a c i p y T0 5 1 +C ° # T E S E R p i r T # T E S E R d l o h s e r h T T S R 3 V T S R 5 V g n il l a f , e g a t l o v t u p t u o d e d a o l n u o t t c e p s e r h t i W % 1 = s i s e r e t s y h l a c i p y t ; e g d e 2 1 -9 -5 -% # T E S E R y a l e D n o i t a g a p o r P p i r t # T E S E R w o l e b % 2 n e v i r d t u p t u o , e g d e g n il l a F d l o h s e r h t 5 . 1s µ y a l e D # T E S E R e m i T L D S R 3 T L D S R 5 T f o t t c e p s e r h t i W C S O 0 0 0 , 7 20 0 0 , 2 30 0 0 , 7 3 s k l c S T U P T U O D N A S T U P N I w o L t u p n I c i g o L e g a t l o V , P O I V , 3 O I V , D S O I V , 5 O I V N S O I V C N Y S , # N D H S , 5 N O , # E V A S P , 3 N O ) F E R = Q E S ( 6 . 0V h g i H t u p n I c i g o L e g a t l o V , P H I V , 3 H I V , D S H I V , 5 H I V N S H I V C N Y S , # N D H S , 5 N O , # E V A S P , 3 N O ) F E R = Q E S ( 4 . 2V Electrical Characteristics Cont. Unless otherwise noted: V+ = 15V, both PWMs on, SYNC = 0V, VL load = 0mA, REF load = 0mA, PSAVE# = 0V, T A =-40 to 85°C. Typical values are at T A = +25°C. Circuit = Typical Application Circuit |
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