ISL6549 Datasheet, PDF (2/18 Pages) Intersil Corporation – Single 12V Input Supply Dual Regulator Synchronous Rectified Buck PWM and Linear Power Controller

Pinouts
ISL6549 (SOIC)
TOP VIEW
ISL6549
ISL6549 (QFN)
TOP VIEW
ISL6549 (QSOP)
TOP VIEW
BOOT 1
FS_DIS 2
COMP 3
FB 4
LDO_DR 5
LDO_FB 6
GND 7
14 UGATE
13 PHASE
12 PGND
11 LGATE
10 PVCC5
9 VCC5
8 VCC12
16 15 14 13
COMP 1
FB 2
LDO_DR 3
LDO_FB 4
METAL
GND
PAD
(BOTTOM)
12 PGND
11 LGATE
10 PVCC5
9 VCC5
5678
BOOT 1
FS_DIS 2
COMP 3
FB 4
LDO_DR 5
LDO_FB 6
AGND 7
DGND 8
16 UGATE
15 PHASE
14 PGND
13 LGATE
12 PVCC5
11 VCC5
10 VCC12
9 VCC12
Block Diagram
VOLTAGE
REFERENCE
LDO_FB
LDO_DR
EA2
DIS
FS_DIS
GND
OSCILLATOR
UV2
VCC5
POWER-ON
RESET (POR)
VCC12
5V
REGULATOR
SOFT-START
RESTART
INHIBIT
DIS
SOFT-START
PWM
EA1
COMP
GATE
LOGIC
PVCC5
BOOT
UGATE
PHASE
LGATE
PGND
UV1
FB COMP
2
FN9168.2
September 22, 2006