ISL6522B Datasheet, PDF (3/15 Pages) Intersil Corporation – Buck and Synchronous Rectifier Pulse-Width Modulator (PWM) Controller

ISL6522B
Typical Application
12V
V_CC
+5V OR +12V
SS
MONITOR AND
PROTECTION
ISL6522B
RT
OSC
OCSET
EN
BOOT
UGATE
REF
PHASE
PV_CC ^+12V
+V_O
-
FB
+
+
-
LGATE
PGND
COMP
GND
Block Diagram
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