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SC2643VXTSTRT Datasheet(PDF) 7 Page - Semtech Corporation

Part # SC2643VXTSTRT
Description  Multi-Platform Multi-Phase PWM Controller
PDF  11 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC2643VXTSTRT Datasheet(HTML) 7 Page - Semtech Corporation

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 2005 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC2643VX
Block Diagram
OCP &
SHUTDOWM
ERROUT
BGOUT
R
PWRGD
16
VID5
15
OUT
+
-
C/A3
AGND
18
E/A
VCC
OS3
1
DAC
VBG
BUFFER
CLOCK DIVIDER
CLK
SEL3
P1
P2
P3
P4
OUTSEN 23
DACSTEP
8
VID4
10
R
PWM4
OUT
+
-
2R
PWM2
OUTSEN
OUT
+
-
C/A4
Power Good Threshold
R
R
S
Q
3/4 Phase selection
Threshold
DRV3
VID0
14
R
UVLO &
LATCH
OSCREF 17
OUT
+
-
DRV4
R
S
Q
PWR_GOOD
DRV1
C/A1
OUT1
19
R
DRV2
Errout
VID1
13
OUT4
22
R
S
Q
2R
OS2
2
DROOP
OUT
+
-
VBG
OUT
+
-
OS1
3
OUT
+
-
VCC
GSEN
VREF
PWM1
GNDSEN
6
VID0
VID1
VID2
VID3
VID4
VID5
VDAC
OS4 24
OUT
+
-
OUT
+
-
BGOUT
4
C/A2
3 PHASE
SELECT
ERROUT
5
OUT
+
-
OUT
+
-
BANDGAP
BGOUT
OUT
+
-
11111
INHIBIT
OUT3
21
OUT
+
-
VID3
11
PWM3
OUT
+
-
OUTSEN
R
S
Q
OUT2
20
OSCILLATOR
OSC
ROSC
Ramp
VCC
9
FB
7
VID2
12



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