ISL8112 Intersil Corporation, ISL8112 Datasheet - Page 14

• Manufacturer Part Number: ISL8112
• Description: Main Power Supply Controllers
• Manufacturer: Intersil Corporation

33µF
9mΩ
6.3V
C11
C11
1.5V/5A
OUT1
FB1 TIED TO GND = 5V
FB1 TIED TO VCC = 1.5V
C10
10µF
L1: 3.3µH
VIN: 5.5V to 25V
FIGURE 18. ISL8112 TYPICAL SYSTEM REGULATOR APPLICATION CIRCUIT
14
Q3b
Q3a
SI4816BDY
VCC
VCC
3.3V
ON
ON
0.1µF
C9
VCC
VCC
OFF
OFF
OFF
1µF
R3
200kΩ
C8
L1
L2
C2
C11
FREQUENCY-DEPENDENT COMPONENTS
1.5V/1.05V SMPS
FREQUENCY
SWITCHING
PVCC
VIN
BOOT1
UG1
PH1
LG1
VSEN1
EN1
BYP
FB1
AGND
ILIM1
MODE
EN_LDO
NC
FS
5V
ISL8112
ISL8112
PAD
VCC
1µF
C5
3.3µH
2.7µH
330µF
330µF
OUT2REF
PGOOD1
PGOOD2
LDOREF
200kHz/300kHz
BOOT2
VSEN2
VREF2
VREF1
PGND
ILIM2
UG2
FS = VCC
LDO
PH2
LG2
EN2
200kΩ
R5
0.22µF
C4
VCC
0.01µF
0.1µF
C3
C7
VCC
VREF2
Q1a
Q1b
OUT2REF: DYNAMIC 0 TO 2.5V
OUT2REF TIED TO VREF2 = 1.05V
OUT2REF TIED TO VCC = 3.3V
LDOREF TIED TO GND = 5V
LDOREF TIED TO VCC = 3.3V
L2: 2.2µF
SI4816BDY
VCC
C1
C1
10µF
10
200kΩ
R4
LDO
1.05V/5A
OUT2
VCC
C6
4.7µF
C2
C2
330µF
4mΩ
6.3V
200kΩ
F
R6
November 21, 2006
FN6396.0