ISL62386 Datasheet, PDF (11/20 Pages) Intersil Corporation – High-Efficiency, Quad Output System Power Supply Controller for Notebook Computers

Block Diagram
FSET 1, 2
FB 1, 2
AGND1, 2
FCCM
VOUT1, 2
VREF
0.6V
ISL62386
VIN
R³
MODULATOR
5V
LDO
4 .8V
VOUT2
PWM
UGATE
DRIVER
SOFT DISCHARGE
EN1, 2
LDO3EN
START-UP
AND
SHUTDOWN
LOGIC
LGATE
DRIVER
LDO 5
BOOT1, 2
UGATE1, 2
PHASE1, 2
LGATE1, 2
PGND
PGOOD
OCSET1, 2
ISEN1, 2
10µA
V REF + 16%
FB1/2
VREF- 16%
BIAS AND
REFERENCE
OCP
PROTECTION LOGIC
OVP/ UVP/ OCP/ OTP
UVP
OVP
VCC
VIN _{START- UP}
3.6V
LDO5
3.3V
LDO
THERMAL
MONITOR
SOFT DISCHARGE
VCC
LDO3
11
FN6831.0
February 4, 2009