ISL6522A Datasheet, PDF (3/13 Pages) Intersil Corporation – Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller

Block Diagram
ISL6522A
VCC
OCSET
FB
COMP
RT
200µA
0.8V_REF
REFERENCE
POWER-ON
RESET (POR)
+
- _OVER
CURRENT
4V
SOFT-
START
10µA
+
-
ERROR
AMP
PWM
COMPARATOR
INHIBIT
+
-
PWM
GATE
CONTROL
LOGIC
OSCILLATOR
EN
SS
BOOT
UGATE
PHASE
PV_CC
LGATE
PGND
GND
3
FN9122.2
April 13, 2005