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ISL6549 Datasheet, PDF (3/18 Pages) Intersil Corporation – Single 12V Input Supply Dual Regulator Synchronous Rectified Buck PWM and Linear Power Controller
Simplified Power System Diagram
+VIN1
+12V
+VIN2
Q3
VOUT2
+
ISL6549
LINEAR
CONTROLLER
ISL6549
PWM
CONTROLLER
Q1
VOUT1
+
Q2
Typical Application Schematic
+VIN1
+12V
+VIN2
+
CVIN2
CBP
CBP5
VOUT2
Q3
+
COUT2
CBP12
PVCC5
VCC12
VCC5
LDO_DR
BOOT
UGATE
PHASE
CBOOT
LDO_FB
LGATE
ISL6549
FB
FS_DIS
COMP
GND
PGND
+
CVIN1
Q1
LOUT
Q2
VOUT1
+
COUT1
3
FN9168.2
September 22, 2006