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SC4521 数据表(PDF) 3 Page - Semtech Corporation |
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SC4521 数据表(HTML) 3 Page - Semtech Corporation |
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3 / 18 page ![]() 3 2007 Semtech Corp. www.semtech.com POWER MANAGEMENT SC4521 r e t e m a r a Pl o b m y Ss 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 t u p n I B FI B F 5 2 . 0 -1 -A µ e g a tl o V k c a b d e e FV B F 4 8 7 . 08 . 06 1 8 . 0V e n i L e g a tl o V k c a b d e e F n o it a l u g e R V < V 4 . 4 N I V 4 2 < ) 1 ( 3 +V / V m V o t B F P M O C n i a G e g a tl o V ) 2 ( V 9 . 0 ≤ V P M O C ≤ V 0 . 20 5 10 5 3V / V V o t B F P M O C e c n a t c u d n o c s n a r T ) 2 ( ∆ I P M O C = ± A µ 0 1 0 0 50 5 80 0 3 1o h M µ V P M O C t n e r r u C e c r u o S n i PV B F V 6 . 0 =0 70 1 1A µ V P M O C t n e r r u C k n i S n i PV B F V 0 . 1 =0 7 -0 1 1 -A µ V P M O C t n e r r u C h c ti w S o t n i P e c n a t c u d n o c s n a r T V P M O C V 5 2 . 1 =3 . 4V / A V P M O C g n i h c ti w S m u m i x a M n i P d l o h s e r h T % 0 = e l c y c y t u D6 . 0V V P M O C d l o h s e r h T P C OV P M O C g n i s ir2 V V P M O C d l o h s e r h T y r t e R p u c c i HV P M O C g n il l a f5 2 . 0V e l c y C y t u D h c ti w S m u m i x a MD X A M V P M O C I , V 2 . 1 = W S A m 0 0 4 =5 8% e v o b A e g a tl o V t s o o B m u m i n i M h c ti w S ) 2 ( 7 . 2V t n e r r u C t s o o BI W S A 1 =0 15 1A m I W S A 3 =0 35 4 e g a tl o V d l o h s e r h T t u p n I e l b a n EV H T E 1 . 17 2 . 15 . 1V t n e r r u C s a i B t u p t u O e l b a n EI L O E d l o h s e r h t w o l e b V m 0 5 = N E8 A µ I H O E d l o h s e r h t w o l e b V m 0 5 = N E0 1A µ t n e r r u C g n i g r a h C t r a t S tf o S ) 3 ( I S S V S S 0 =6 1A µ t n e r r u C g n i g r a h c s i D t r a t S tf o SI S S 2 -A m Electrical Characteristics (Cont.) Notes: (1) The required minimum input voltage for a regulated output depends on the output voltage and load condition. (2) Guaranteed by design. (3) See Application Information. Unless specified: V IN = 12V, VCOMP = 0.8V, VBST = VIN + 5V, EN = tied to VIN, SW = open. T A = TJ = -40°C to 125°C. |
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