isl6236 Intersil Corporation, isl6236 Datasheet - Page 22
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isl6236
Manufacturer Part Number
isl6236
Description
High-efficiency, Quad-output, Main Power Supply Controllers For Notebook Computers
Manufacturer
Intersil Corporation
Datasheet
1.ISL6236.pdf
(36 pages)
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330µF
9mΩ
6.3V
C11
C11
1.5V/5A
OUT1
FIGURE 67. ISL6236 TYPICAL SYSTEM REGULATOR APPLICATION CIRCUIT WITHOUT CHARGE PUMP
FB1 TIED TO GND = 5V
FB1 TIED TO VCC = 1.5V
C10
10µF
L1: 3.3µH
VIN: 5.5V to 25V
22
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
UGATE1
PHASE1
LGATE1
OUT1
EN1
BYP
FB1
AGND
ILIM1
SKIP#
EN LDO
SECFB
TON
5V
ISL6236
ISL6236
PAD
VCC
1µF
C5
3.3µH
2.7µH
330µF
330µF
LDOREFIN
UGATE2
PHASE2
LGATE2
REFIN2
200kHz/300kHz
BOOT2
VREF3
PGND
OUT2
POK1
POK2
ILIM2
t
REF
LDO
EN2
ON
= VCC
200kΩ
R5
0.22µF
C4
VCC
0.01µF
0.1µF
C3
C7
VCC
VREF3
Q1a
Q1b
REFIN2: DYNAMIC 0V TO 2.5V
REFIN2 TIED TO VREF3 = 1.05V
REFIN2 TIED TO VCC = 3.3V
LDOREFIN TIED TO GND = 5V
LDOREFIN 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
June 28, 2007
FN6373.3