ISL6553 Intersil Corporation, ISL6553 Datasheet - Page 2
ISL6553
Manufacturer Part Number
ISL6553
Description
Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller
Manufacturer
Intersil Corporation
Datasheet
1.ISL6553.pdf
(15 pages)
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Block Diagram
Simplified Power System Diagram
VID25mV
COMP
VSEN
VID3
VID2
VID1
VID0
FB
VSEN
ISL6553
VID
X1.15
X 0.9
D/A
2
PWM 1
PWM 2
AND FAULT
+
-
-
+
OVP
UV
START
LOGIC
SOFT-
GND
OC
I_TOT
+
-
+
PGOOD
E/A
-
S
LATCH
I_TRIP
OV
RECTIFIED BUCK
RECTIFIED BUCK
+
+
SYNCHRONOUS
SYNCHRONOUS
+
ISL6553
CHANNEL
CHANNEL
CORRECTION
CURRENT
-
+
RESET (POR)
POWER-ON
VCC
GENERATOR
CLOCK AND
-
SAWTOOTH
+
+
-
-
PWM
PWM
MICROPROCESSOR
THREE
STATE
FS/EN
PWM1
PWM2
ISEN1
ISEN2