ISL6553 Intersil Corporation, ISL6553 Datasheet - Page 2

• Manufacturer Part Number: ISL6553
• Description: Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller
• Manufacturer: Intersil Corporation

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