ISL6237 Datasheet, PDF (23/35 Pages) Intersil Corporation – High-Efficiency, Quad-Output, Main Power Supply Controllers for Notebook Computers

ISL6237
VIN: 5.5V TO 25V
C5
1µF
OUT1
5V/7A
C11
330µF
9mΩ
6.3V
C10
10µF
Q3
IRF7807V
L1: 4.7µH
C9
0.1µF
Q4
IRF7811AV
PVCC
VIN
BOOT1
UGATE1
PHASE1
LGATE1
VCC
LDO
LDOREFIN
BOOT2
UGATE2
PHASE2
LGATE2
VCC
OUT1
EN1
BYP
FB1 TIED TO GND = 5V
FB1 TIED TO VCC = 1.5V
R3
200kΩ
FB1
AGND
ILIM1
ISL6237
PGND
OUT2
EN2
REFIN2
ILIM2
ON
OFF
GND
SKIP
EN LDO
TON
PAD
REF
POK1
POK2
C4
0.1µF
LDO
C1
10µF
C6
4.7µF
Q1
IRF7821
L2: 4.7µH
OUT2
3.3V/11A
Q2
IRF7832
C2
330µF
9mΩ
4V
VCC
REFIN2: STATIC 0 TO 2.5V
VCC _{REFIN2 TIED TO VREF3 = 1.05V}
R5
150kΩ
REFIN2 TIED TO VCC = 3.3V
VCC
VCC
0.1µF
C7
R4
200kΩ
R6
200kΩ
FIGURE 64. ISL6237 TYPICAL 3.3V/5V SYSTEM REGULATOR APPLICATION CIRCUIT
23
FN6418.4
March 18, 2008