ISL6443A Intersil Corporation, ISL6443A Datasheet - Page 4

• Manufacturer Part Number: ISL6443A
• Description: Step-Down PWM and Single Linear Controller
• Manufacturer: Intersil Corporation

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Typical Application Schematic
+1.2V, 2A
VOUT1
4.99k
R1
10k
R2
330µF
C9
1µF
C3
+
PGOOD
BAT54HT1
6.4µH
0.1µF
L1
C7
D1
FDS6990S
Q1
4
0.1µF
C4
1.4k
R3
UGATE1
PHASE1
LGATE1
OCSET1
BOOT1
R7
120k
PGND
ISEN1
SD1
SD2
SS1
FB1
SGND
18
24
23
21
25
20
15
19
5
16
22
NOTE: Pin numbers correspond to the QFN pinout.
VIN
17
10
(SEE NOTE)
ISL6443A
ISL6443A
11
SYNC
4
VCC_5V
3
27
28
26
12
14
13
1
PGOOD
6
2
7
8
9
10k
R9
GATE3
SS2
BOOT2
UGATE2
PHASE2
ISEN2 R4
LGATE2
FB2
SGND
FB3
OCSET2
SGND
120k
C2
4.7µF
VCC_5V
R8
1.4k
0.1µF
C5
FDS6990S
Q2
BAT54HT1
0.1µF
D2
C11
0.01µF
C8
6.4µH
R12
100
L2
+
21.5k
R10
10k
R11
C1
56µF
C6
1µF
+
330µF
Q3
IRF7404
C10
+12V
10µF
+3.3V
C12
VOUT2
31.6k
R6
10k
R5
+2.5V, 500mA
December 7, 2007
VOUT3
+3.3V, 2A
VOUT2
FN6600.1