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ISL6420A Datasheet, PDF (6/21 Pages) Intersil Corporation – Advanced Single Synchronous Buck Pulse-Width Modulation PWM Controller
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ISL6420A
Typical 5V Input DC/DC Application Schematic
5V ±10%
C1
C7
R2
0.1µF
C8
C2
C3
C4
C5
VIN VCC5
PVCC
D1
OCSET R1
ENSS
MONITOR AND
PROTECTION
BOOT
RT
PGOOD
OSC
Q1
UGATE
C9
CDEL
REF
PHASE
SGND
--
FB
+
-
+
+
LGATE
Q2
PGND
R3
COMP
C11
C6
L1
C10
R5 C12
R4
C13
USE INTERNAL VREF WITH NO
VOLTAGE MARGINING
SEE PAGE 12 FOR MORE DETAILS
VOUT
Typical 5.5V to 28V Input DC/DC Application Schematic
5.5V to 28V
C7
0.1µF
C1
R2
C8
C2
C3
C4
C5
VIN VCC5
PVCC
D1
OCSET R1
ENSS
MONITOR AND
PROTECTION
BOOT
RT
Q1
PGOOD
OSC
UGATE
C9
CDEL
REF
PHASE
SGND
--
FB
+
-
+
+
LGATE
Q2
PGND
R3
C11 COMP
C6
L1
C10
R5 C12
R4
C13
USE INTERNAL VREF WITH NO
VOLTAGE MARGINING
SEE PAGE 12 FOR MORE DETAILS
VOUT
6
FN9169.4
December 4, 2009
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