isl6236a Intersil Corporation, isl6236a Datasheet - Page 21
isl6236a
Manufacturer Part Number
isl6236a
Description
High-efficiency, Quad-output, Main Power Supply Controllers For Notebook Computers
Manufacturer
Intersil Corporation
Datasheet
1.ISL6236A.pdf
(37 pages)
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330µF
9mΩ
6.3V
OUT1 – PCI-e
C
1.25V/5A
11
C
10µF
10
R
10kΩ
VIN: 5.5V TO 25V
L
SI4816BDY
R
7.87kΩ
2
1
1
: 3.3µH
FB1 TIED TO GND = 5V
FB1 TIED TO VCC = 1.5V
21
Q3a
Q3b
FIGURE 66. ISL6236A TYPICAL DYNAMIC GFX APPLICATION CIRCUIT
GND
VCC
VCC
0.1µF
5V
VCC
C
9
R
200kΩ
1µF
C
3
8
L
L
C
C
FREQUENCY-DEPENDENT COMPONENTS
1
2
1.25V/1.05V SMPS
2
11
FREQUENCY
SWITCHING
PVCC
VIN
BOOT1
UGATE1
PHASE1
LGATE1
OUT1
EN1
BYP
FB1
AGND
ILIM1
SKIP#
EN LDO
SECFB
TON
5V
ISL6236A
ISL6236A
VCC
PAD
1µF
C
5
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 0V TO 2.5V
REFIN2 TIED TO VREF3 = 1.05V
REFIN2 TIED TO VCC = 3.3V
200kΩ
R
5
C
0.22µF
NC
GND
4
OPEN
0.1µF
C
C
VCC
3
7
Q
IRF7832
Q
IRF7821
2
1
L
2
: 2.2µH
VCC
C
C
10
10µF
2 BITS
DAC
1
R
200kΩ
+
4
TRACK REFIN2/10A
+
OUT2-GFX
VCC
DROOP
C
C
2 x 330µF
4mΩ
6.3V
R
200kΩ
2
+
+
+
-
-
-
6
June 28, 2007
FN6453.1
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