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SC4624A Datasheet(PDF) 10 Page - Semtech Corporation

Part # SC4624A
Description  Low Input Voltage, High Efficiency, 4A Integrated FET Synchronous Step down DC/DC Regulator
Download  19 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC4624A Datasheet(HTML) 10 Page - Semtech Corporation

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 2008 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC4624A
Block Diagram
AGND
VCC
SS
FB
COMP
SYNC/EN
FB
BANDGAP
BANDGAP
VREF
SOFT
START
OSC
CLOCK
SD
PWM
BLOCK
PWM
LOGIC
ERROR
OPAMP
SHOOT-
THRU
PROTECTION
THERMAL
SHUTDOWN
UVLO
+
-
0.5V
OVER
CURRENT
PROTECT
BOTTOM
GATE
LOW SIDE DRIVER
AND LOGIC
1.1VREF
0.9VREF
PGOOD
PGND2
PGND1
PH3
PH2
PH1
ISET
PVIN2
PVIN1
I = F(R_ISET)
HIGH SIDE DRIVER
AND LOGIC
TOP GATE
ASYNCHRONOUS
START UP
FS


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