isl8501 Intersil Corporation, isl8501 Datasheet - Page 4

• Manufacturer Part Number: isl8501
• Description: Triple Output Controller With 1a Standard Buck Pwm And Dual Ldos
• Manufacturer: Intersil Corporation

Functional Block Diagram
EN_LDO1
EN_LDO2
PG_PWM
PG_LDO
GND
VCC
SS
EN
30μA
VIN
VCC
LDO
SOFT-START
CONTROL
4
POWER-ON
MONITOR
VOLTAGE
MONITOR
MONITOR
RESET
FAULT
FAULT
FAULT
POR
POR
REF
REF
OC
MONITOR
VIN_LDO1
VIN_LDO2
PVCC
REFERENCE
THERMAL
MONITOR
+150
CONTROL
CONTROL
0.6V
LOGIC
LDO1
LOGIC
LDO2
ISL8501
o
-15% COMP.
-15% COMP.
C
+
-
EA
OSCILLATOR
RAMP
GENERATOR
Gm
Gm
+
-
PWM
VIN
+
DRIVE
-
GATE
+
-
POR
LDO2
LDO1
OC
MONITOR
VIN (x2)
PHASE (x2)
CC1
VIN_LDO1
VOUT1
FB_LDO1
CC2
VIN_LDO2
VOUT2
FB_LDO2
July 12, 2007
FN6500.1