isl8120 Intersil Corporation, isl8120 Datasheet - Page 13

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

Typical Application VIIII (4 Outputs Operation with DCR Sensing)
V
V
2Ω
SENSE4-
SENSE4+
V
OUT4
C
+2.97V TO +22V
OUT4
2Ω
R
VIN_F
VIN_F
R
FB4
L
L
L
OS4
OUT6
OUT5
OUT4
R
VIN_F
R
R
C
C
C
ISEN5
ISEN4
ISEN6
BOOT6
BOOT2
BOOT4
Z
FB3
C
C
C
SEN4
C
F3
F3
F3
Q4
Q4
Q4
13
VIN
Q3
Q3
Q3
Z
GND
VCC
GND
VCC
COMP4
C
C
C
F1
F1
F1
EN/FF1,2
EN/FF1,2
UGATE2
PHASE2
UGATE2
PHASE2
VSEN2+
LGATE2
UGATE2
PHASE2
PGOOD
LGATE2
VSEN2+
LGATE2
VSEN2+
PGOOD
VSEN2-
VMON2
COMP2
ISEN2A
ISEN2B
PGOOD
ISEN2A
ISEN2B
VSEN2-
ISEN2A
ISEN2B
VSEN2-
EN/FF2
BOOT2
BOOT2
FSYNC
BOOT2
FB2
FB2
FB2
VIN
CLKOUT/REFIN
OUTPUT 3 AND 4
VIN
VIN
(PHASE 3 and 6)
(PHASE 1 and 4)
(PHASE 2 and 5)
VCC
VCC
VCC
OUTPUT 2
ISL8120
ISL8120
OUTPUT 1
ISL8120
GND
R
R
R
CC
CC
CC
ISL8120
GND
GND
PVCC
PVCC
PVCC
BOOT1
UGATE1
PHASE1
LGATE1
ISEN1A
ISEN1B
COMP1
FB1
VMON1
VSEN1+
VSEN1-
ISHARE/ISET
EN/FF1
FSYNC
BOOT1
UGATE1
PHASE1
LGATE1
ISEN1A
ISEN1B
COMP1/2
FB1
VMON1/2
VSEN1+
VSEN1-
CLKOUT/REFIN
FSYNC
ISHARE/ISET
BOOT1
UGATE1
PHASE1
LGATE1
ISEN1A
ISEN1B
VMON1
FB1
COMP1/2
VMON2
VSEN1+
VSEN1-
CLKOUT/REFIN
ISHARE/ISET
L
IN
R
Z
C
C
C
OS1
COMP2
F2
F2
F2
R
Z
VIN_F
R
COMP1
C
Q2
Q2
VIN_F
VIN_F
Q2
Q1
Q1
Q1
IN
R
Z
FB2
C
C
C
R
BOOT3
BOOT1
BOOT1
OS3
Z
R
Z
FB3
OS2
FB1
R
L
L
L
R
OS1
OUT2
OUT3
OUT1
FB1
R
R
R
R
FB3
ISEN3
ISEN2
ISEN1
C
R
SEN3
FB2
C
SEN2
C
R
SEN1
FB1
2Ω
C
V
V
V
OUT3
OUT3
SENSE3-
SENSE3+
2Ω
C
2Ω
C
V
V
V
V
V
OUT1
OUT2
OUT1
SENSE1-
SENSE1+
SENSE2-
SENSE2+
V
OUT2
2Ω
2Ω
2Ω
March 28, 2008
FN6641.0