ISL6406_07 Datasheet, PDF (3/18 Pages) Intersil Corporation – Single Synchronous Buck Pulse-Width Modulation (PWM) Controller

Functional Block Diagram
VCC
ISL6406
CPVOUT
CT1
CT2
CPGND
OCSET
CHARGE
PUMP
20μA
SDWN
POWER-ON
RESET (POR)
+
-
OC
COMPARATOR
SOFTSTART
FB
VOUT
COMP
+
0.8V
-
ERROR
AMP
+
-
PWM
COMPARATOR
+
-
SDWN
GATE
CONTROL
PWM ^LOGIC
OSCILLATOR
SYNC/EN RT
GND
BOOT
UGATE
PHASE
LGATE
3
FN9073.7
January 16, 2007