ISL6402 Datasheet, PDF (3/19 Pages) Intersil Corporation – 300kHz Dual, 180 Degree Out-of-Phase, Step-Down PWM and Single Linear Controller

Block Diagram
SGND VCC_5V
VIN
SYNC
PGOOD
FB3
GATE3
SS1
SS2
LDO &
SS1
POWER-ON
SS2
RESET (POR)
POR +5V
RAMP
BOOT1
UGATE1
PHASE1
HGDR
VCC_5V
HI
GATE LOGIC
PWM1
SHUTDOWN ^SD1
LGATE1
PGND
LGDR
LO
PWM
SD1
FB1
OCSET1
-
REF
ISEN1
-
-
OC
COMP
∑
CLOCK
CLK
FB1
OUTPUT
FB3
VOLTAGE
FB2
MONITOR
LINEAR
CONTROLLER
REF
HI
GATE LOGIC
PWM2
SD2 _SHUTDOWN
HGDR
BOOT2
UGATE2
PHASE2
VCC_5V
PWM
LGDR
LO
LGATE2
OC SS1
LOGIC
SS2 OC
LOGIC
-
SQ
CLK
R
PWM1
LATCH
QS
-
CLK
R
PWM2
LATCH
-
OC
COMP
∑
SD2
-
REF
FB2
OCSET2
ISEN2
-