ISL6540A Datasheet, PDF (2/22 Pages) Intersil Corporation – Single-Phase Buck PWM Controller with Integrated High Speed MOSFET Driver and Pre-Biased Load Capability

Block Diagram
REFIN
REFOUT
MAR_CTRL
OFS+
OFS-
EN
VCC
REFERENCE
V_REF = 0.591 V
POWER-ON
RESET (POR)
VOLTAGE
MARGINING
OTA
SOFT-START
AND
FAULT LOGIC
VIN
LIN_DRV
INTERNAL SERIES EXTERNAL SERIES
LINEAR
LINEAR DRIVER
SOURCE OCP
100µA
HSOC
BOOT
UGATE
SS
FB
COMP
VCC
1.8V
VSEN+
VSEN-
G=1
UNITY GAIN
DIFF AMP
PWM
COMP
EA
OV/UV
COMP
PGOOD
COMP
SOURCE
OCP
100μA
SINKING OCP
OSCILLATOR
G = -1
VMON PG_DLY PG
LSOC
VFF
FS
GATE
CONTROL
LOGIC
PHASE
PVCC
LGATE
PGND
GND
GND