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ISL6553 Datasheet(PDF) 2 Page - Intersil Corporation

Part No. ISL6553
Description  Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL6553 Datasheet(HTML) 2 Page - Intersil Corporation

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2
Block Diagram
Simplified Power System Diagram
D/A
CURRENT
CORRECTION
OV
LATCH
POWER-ON
RESET (POR)
X1.15
SOFT-
START
AND FAULT
LOGIC
+
-
+
-
UV
OVP
+
-
E/A
+
-
PWM
PWM
OC
+
-
PWM1
PWM2
ISEN1
ISEN2
GND
PGOOD
VCC
FB
I_TRIP
FS/EN
S
STATE
I_TOT
+
-
+
-
+
+
-
CLOCK AND
THREE
VID3
VID2
VID1
VID0
VID25mV
COMP
VSEN
GENERATOR
SAWTOOTH
+
X 0.9
SYNCHRONOUS
ISL6553
MICROPROCESSOR
VSEN
VID
RECTIFIED BUCK
CHANNEL
SYNCHRONOUS
RECTIFIED BUCK
CHANNEL
PWM 1
PWM 2
ISL6553


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