isl9440b Intersil Corporation, isl9440b Datasheet - Page 4

• Manufacturer Part Number: isl9440b
• Description: Triple Step-down Pwm And Single Linear Controller With Programmable Soft-start
• Manufacturer: Intersil Corporation

Typical Application - ISL9440B
+ 5.0V, 15A
105k
20k
VOUT1
R2
R1
330µF
C4
10µF
CIN3
+2.5V, 800mA
+
220pF
CFF1
VOUT4
330µF
C5
CIN4
VOUT2
10µF
+
+3.3V
2.2µH
0.22µF
100µF
C12
C2
L1
Si4423DY
RJK0301DPB
+
4
RJK0305DPB
Q4
10k
Q1
21.5k
R10
R9
150k
150k
Q2
R13
R14
150k
R15
C
C
22nF
22nF
C
22nF
SS3
0.22µF
SS1
SS2
R12
C11
51
2.0k
R3
UGATE1
PHASE1
OCSET1
LGATE1
OCSET3
OCSET2
LDOFB
BOOT1
EN/SS1
EN/SS2
EN/SS3
ISEN1
FB1
G4
ISL9440B, ISL9440C
CINF
0.47µF
10
14
17
31
30
1
29
6
7
15
32
9
12
5
VIN
I
4
SL9440B
RINF
1
PGND
3
VCC_5V
23
SGND
11
26
27
25
24
28
20
21
19
18
22
13
16
8 RST
2
BOOT2
UGATE2
PHASE2
ISEN2 R4
LGATE2
FB2
BOOT3
UGATE3
PHASE3
ISEN3 R11
LGATE3
FB3
PGOOD
C1
4.7µF
2.0k
1.5k
V
V
100k
100k
VCC_5V
R16
R17
VCC_5V
Q3
Q5
RJK0305DPB
RJK0304DPB
Q6
+19V
RJK0301DPB
RJK0301DPB
Q4
RST
PGOOD
+
CIN2
150µF
3.3µH
0.22µF
1.5µH
C3
0.22µF
C8
L3
L2
+
CIN5
10µF
CIN1
150µF
CIN7
10µF
+
180µF
C9
+
330F
C6
+
180µF
C10
10µF
CIN6
220pF
CFF2
+ C7
330µF
+19V
140k
January 15, 2009
R7
10k
R8
+3.3V, 15A
+12V, 12A
VOUT3
VOUT2
FN6799.0
CFF3
330pF
31.6k
R6
10k
R5