isl8120 Intersil Corporation, isl8120 Datasheet - Page 8

• Manufacturer Part Number: isl8120
• Description: Dual/n-phase Buck Pwm Controller With Integrated Drivers
• Manufacturer: Intersil Corporation

Typical Application IV (3-Phase Regulator with Precision Resistor Sensing)
R
ISEN3
+2.97V TO +22V
VIN_F
C
L
C
OUT3
F3
BOOT3
8
C
GND
F3
Q4
GND
VIN
Q3
VCC
VCC
C
C
F1
F1
EN/FF1
EN/FF1,2
EN/FF2
PHASE2
UGATE2
LGATE2
VSEN2+
ISEN2A
ISEN2B
VSEN2-
PGOOD
BOOT2
R
FB2
FS
VIN
CLKOUT/REFIN
PGOOD
BOOT2
UGATE2
PHASE2
LGATE2
ISEN2A
ISEN2B
FB2
VMON2
VSEN2+
VSEN2-
VIN
FSYNC
EN/FF1,2
PHASE 1 AND 3
VCC
VCC
ISL8120
ISL8120
PHASE 2
GND
ISL8120
R
R
CC
CC
GND
PVCC
PVCC
ISET
BOOT1
UGATE1
PHASE1
LGATE1
ISEN1A
ISEN1B
COMP1/2
FB1
VMON1/2
VSEN1+
VSEN1-
ISHARE
CLKOUT/REFIN
BOOT1
UGATE1
PHASE1
LGATE1
ISEN1A
ISEN1B
COMP1
FB1
VMON1
VSEN1+
VSEN1-
FSYNC
ISHARE
ISET
L
IN
R
R
C
C
F2
F2
VCC
Z
VIN_F
COMP1
C
Q2
Q2
Q1
Q1
R
R
IN
ISEN1
ISEN1
R
VIN_F
R
OS1
C
C
L
BOOT2
BOOT1
L
R
OUT1
OUT2
Z
R
FB1
FB1
C
SEN1
R
ISEN2
C
OUT
10Ω
V
V
V
OUT
SENSE1-
SENSE1+
March 28, 2008
10Ω
FN6641.0