isl8120 Intersil Corporation, isl8120 Datasheet - Page 9

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

Typical Application V (4 Phase Operation with DCR Sensing)
+2.97V TO +22V
VIN_F
VIN_F
L
L
R
OUT4
C
OUT3
R
ISEN3
F3
C
ISEN4
C
BOOT4
BOOT3
VCC
C
F3
VCC
VCC
Q4
Q4
VCC
Q3
Q3
VCC
VCC
VIN
9
C
C
F1
F1
VSEN1,2+
EN/FF1,2
VSEN1,2-
EN/FF1,2
PHASE2
PHASE2
UGATE2
UGATE2
LGATE2
LGATE2
VSEN2+
PGOOD
PGOOD
ISEN2A
ISEN2A
ISEN2B
ISEN2B
VSEN2-
BOOT2
BOOT2
R
FB2
FS
FB2
VIN
VIN
CLKOUT/REFIN
FSYNC
PHASE 1 AND 3
PHASE 2 AND 4
VCC
VCC
ISL8120
ISL8120
GND
R
R
CC
CC
ISL8120
GND
PVCC
PVCC
CLKOUT/REFIN
PHASE1
BOOT1
UGATE1
LGATE1
VSEN1-
ISET
ISEN1B
COMP1/2
BOOT1
UGATE1
PHASE1
LGATE1
ISEN1A
ISEN1B
COMP1/2
FB1
VMON1/2
ISET
FSYNC
ISHARE
ISEN1A
VMON1/2
VSEN1+
ISHARE
FB1
L
IN
R
R
C
C
F2
F2
Z
COMP1
C
VIN_F
Q2
Q2
Q1
Q1
VIN_F
2ND DIVIDER TO AVOID
SINGLE POINT FAILURE
IN
R
C
C
OS1
R
BOOT2
BOOT1
R
R
R
R
OS1
ISEN2
FB1
Z
L
L
R
FB1
OUT2
OUT1
FB1
R
C
ISEN1
C
SEN1
OS
10
C
V
V
V
March 28, 2008
OUT
OUT1
Ω
SENSE1-
SENSE1+
FN6641.0
10
Ω