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SC1404ITSTR Datasheet(PDF) 7 Page - Semtech Corporation

Part # SC1404ITSTR
Description  Mobile Multi-Output PWM Controller with Virtual Current Sense
PDF  27 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC1404ITSTR Datasheet(HTML) 7 Page - Semtech Corporation

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 2003 Semtech Corp.
www.semtech.com
SC1404
POWER MANAGEMENT
Block Diagram
2.5V
REF
V+
+3.3V
VL
VIN
VL
BST3
DH3
LX3
DL3
CSH3
CSL3
COMP3
REF
TIME/ON5
RUN/ON3
SEQ
RESET
COMP5
CSL5
CSH5
PGND
DL5
LX5
DH5
BST5
VL
SYNC
V+
PSAVE
5V
REG
EN
DELAY
CSL5
VL
LS
OSC
LS
HS
VL
50mV
7.5mV
2.5mV
3V
CTL
LOGIC
OC
PS
POL
50mV
7.5mV
2.5mV
OC
PS
POL
5V
CTL
LOGIC
PWM
MODULATOR
PWM
MODULATOR
OV FAULT
+10%
-25%
UV FAULT
3
VL
2
POW ER-ON
SEQUENCE
LOGIC
0.5
2.0
SS
TIMER
BV
DELAY
+5V
VIN
CURRENT
RAMP
V+
CSL3
CSL5
12OUT
VDD
+
4.7µ f
200mA
2.2µ f
+
T1
1:3
12 V
REG
PS
PS



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