ISL8112 Intersil Corporation, ISL8112 Datasheet - Page 13

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

330µF
9mΩ
6.3V
OUT1 – PCI-e
C11
C11
1.25V/5A
C10
10µF
10kΩ
R2
VIN: 5.5V to 25V
SI4816BDY
L1: 3.3µH
7.87kΩ
R1
FB1 TIED TO GND = 5V
FB1 TIED TO VCC = 1.5V
13
Q3a
Q3b
FIGURE 17. ISL8112 TYPICAL DYNAMIC GFX APPLICATION CIRCUIT
GND
VCC
VCC
0.1µF
5V
C9
VCC
1µF
R3
200kΩ
C8
L1
L2
C2
C11
FREQUENCY-DEPENDENT COMPONENTS
1.25V/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
VCC
PAD
1µF
C5
3.3µH
2.7µH
2 x 330µF
330µF
OUT2REF
PGOOD1
PGOOD2
LDOREF
200kHz/300kHz
BOOT2
VSEN2
VREF2
VREF1
PGND
ILIM2
LDO
FS = VCC
UG2
PH2
LG2
EN2
OUT2REF: DYNAMIC 0 TO 2.5V
OUT2REF TIED TO VREF2 = 1.05V
OUT2REF TIED TO VCC = 3.3V
200kΩ
R5
NC
GND
C4
0.22µF
OPEN
0.1µF
C3
C7
VCC
Q2
IRF7832
Q1
IRF7821
L2: 2.2µH
VCC
C1
C1
10
10µF
R4
200kΩ
TRACK OUT2REF/10A
2 BITS
DAC
+
OUT2-GFX
+
VCC
2 x 330µF
C2
C2
4mΩ
6.3V
R6
200kΩ
DROOP
November 21, 2006
+
+
+
-
-
-
FN6396.0