isl9444 Intersil Corporation, isl9444 Datasheet - Page 7

• Manufacturer Part Number: isl9444
• Manufacturer: Intersil Corporation

Typical Application - ISL9444
330µF
VOUT1 can be connected to EXTBIAS for lower IC power dissipation and IC self-bias.
Care must be taken to ensure VIN does not drop below EXTBIAS.
C5
+5.0V, 18A
+
10µF
CIN5
VOUT1
330µF
C6
1.74k
10.7k
R7
+
R6
CIN4
10µF
0.22µF
2.2µH
PGOOD2
L1
+16V
C3
CFF1
4700pF
V
R16
200
10k
64.9k
R15
R14
PGOOD1
RJK0329DPB
RJK0332DPB
PGOOD2
7
200k
200k
200k
47nF
47nF
C
C
R12
R13
PFO
R11
SS2
SS1
Q2
Q1
EXTBIAS
2.0k
R4
10
38
37
40
36
30
29
11
23
14
18
16
19
6
7
2 PFI
1
8
C1
0.1µF
EXTBIAS
BOOT1
UGATE1
PHASE1
ISEN1
LGATE1
FB1
PGOOD2
MODE/SYNC
PFO
EN2
TK/SS2
EN/SS1
PGOOD1
OCSET1
OCSET2
OCSET3
CLKOUT
3
PGND
ISL9444
ISL9444
29
VIN
SGND
5
15
PG3_DLY
PGOOD3
VCC_5V
PHASE2
PHASE3
UGATE2
UGATE3
LGATE2
LGATE3
TK/SS3
BOOT2
BOOT3
ISEN2
ISEN3
0.1µF
C10
RT
FB2
FB3
EN3
9
4
R
118k
T
33
34
32
31
35
26
27
25
24
27
20
17
13
12
21
22
3.92k
3.92k
R5
4.7µF
C2
R8
PGOOD1
+16V
C
47nF
RJK0332DPB
SS3
Q4
Q5
RJK0332DPB
RJK0329DPB
Q6
Q7
RJK0329DPB
+
External boot diode may be added for PWM2.
CIN3
150µF
Q3
1000pF
VOUT1
CFF2
V
200
CFF3
R3
22pF
L2
100k
2.2µH
RPG
C9
0.22µF
C4
0.22µF
1.5µH
+
L3
150µF
CIN2
10µF
CIN7
PGOOD
R1
3.24k
R2
52.3k
+
CIN9
10µF
R9
11.5k
R10
3.09k
150µF
CIN1
CIN6
10µF
+
C10
330µF
+ C7
+ 12.0V, 15A
180µF
VOUT2
+19V
CIN8
10µF
+3.3V, 15A
VOUT3
+ C11
May 23, 2011
+
180µF
330µF
C8
FN7665.0