isl6236 Intersil Corporation, isl6236 Datasheet - Page 21

• Manufacturer Part Number: isl6236
• Description: High-efficiency, Quad-output, Main Power Supply Controllers For Notebook Computers
• Manufacturer: Intersil Corporation

330µF
9mΩ
6.3V
OUT1 – PCI-e
C11
C11
1.25V/5A
C10
10µF
R2
10kΩ
VIN: 5.5V to 25V
L1: 3.3µH
SI4816BDY
R1
7.87kΩ
FB1 TIED TO GND = 5V
FB1 TIED TO VCC = 1.5V
21
Q3a
Q3b
FIGURE 66. ISL6236 TYPICAL DYNAMIC GFX APPLICATION CIRCUIT
GND
VCC
VCC
0.1µF
5V
C9
VCC
R3
200kΩ
1µF
C8
L1
L2
C2
C11
FREQUENCY-DEPENDENT COMPONENTS
1.25V/1.05V SMPS
FREQUENCY
SWITCHING
PVCC
VIN
BOOT1
UGATE1
PHASE1
LGATE1
OUT1
EN1
BYP
FB1
AGND
ILIM1
SKIP#
EN LDO
SECFB
TON
5V
ISL6236
ISL6236
VCC
PAD
1µF
C5
3.3µH
2.7µH
2 x 330µF
330µF
LDOREFIN
UGATE2
PHASE2
LGATE2
200kHz/300kHz
REFIN2
BOOT2
VREF3
PGND
POK1
POK2
OUT2
ILIM2
t
LDO
REF
ON
EN2
= VCC
REFIN2: DYNAMIC 0 TO 2.5V
REFIN2 TIED TO VREF3 = 1.05V
REFIN2 TIED TO VCC = 3.3V
200kΩ
R5
C4
0.22µF
NC
GND
OPEN
0.1µF
C7
C3
VCC
Q2
IRF7832
Q1
IRF7821
L2: 2.2µH
VCC
C1
C1
10
10µF
2 BITS
DAC
R4
200kΩ
+
TRACK REFIN2/10A
+
OUT2-GFX
VCC
DROOP
C2
C2
2 x 330µF
4mΩ
6.3V
R6
200kΩ
+
+
+
-
-
-
June 28, 2007
FN6373.3