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ISL9440C Datasheet(PDF) 6 Page - Intersil Corporation

Part # ISL9440C
Description  Triple PWM Step-Down Synchronous Buck Controller and One LDO
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL9440C Datasheet(HTML) 6 Page - Intersil Corporation

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background image
Schematic
Title
Size
Do cumen t Numbe r
Re v
Dat e:
Sh eet
of
REV 0. 0
2
I SL 944 0B HI GH CURRENT TRIPPLE VO UT EV BO AR D
Cu st om
11
Mon day , Ja nua ry 26 , 200 9
VO1
VIN
CSS3
22n
FB2
Cp3
OPT
Load Transien t Ci rcui t 2
PH2
J1 4
VFB1
VO2
J7
1
Q1
OPT
CO1 2
OPT
V01-
J1 2
1
2
2
3
C2 O PT
V02 +
CB20 .22u
16V
Cff1
220p
CI N7
10 u
35 V
EN3
QL1
RJK03 30D PB
RL3
1.6
CL3
820 p
VO1
R13
OPT, 0. 01
R1 7
OPT, 0 .1
J9
1
LDOFB
LG2
R5 4 7
Enabled
J10
1
Q7
OPT
UG 2
TP11
Ext. VCC
1
TP3
PGOOD
1
VO2
QL2
RJK0 330 DPB
EXTVCC
R9 21. 5K1%
Cp2
OPT
V03 +
C1 0. 22u
Q4
Visha y , P C han nel MOSFET, Si4 423 DY
G
4
CO2 2
330 u
6.3 V
Enabl ed
Cp1
OPT
CO 24
10 u
10 V
X5R
Q2
OPT
TP15
VO 4
1
CO2 3
10 u
10 V
CI N5
OPT
35V
V02-
Enabl ed
J11
1
R2
20 K
1%
CFIN1
0 .47 u
35V
UG3
CIN4
10u
35V
CO 31
OPT
TP4
RST
1
12V @ 12A
PGOOD
CIN 1
100 u
35V
Disabl ed
QU 3
RJ K0 332 DPB
TP16
GND
1
TP7
VO 2
1
J4
EN3
1
2
2
3
TP8
GND
1
J17
R15
OPT, 0. 01
Di sable d
J1
1
R14
OPT, 10K
VO 3
J18
ISTEP1
CI N9
10 u
35 V
Q10
O PT, SU D50N03-16P
J5
EN2
1
2
2
3
V03 -
Disabl ed
CSS2
22 n
TP1 0
GND
1
TP9
VO3
1
VI N
R10
10K
1%
CO11
330 u
6.3 V
Sany o, 6TPF3 30M9L
CO1 3
10 u
10 V
CO14
10u
10V
RO C2
16 9K
CO 15
33 0u
6. 3V
VIN
VO 2
Cff2 2 20p
CIN1 0
1 00u
35V
U1
ISL9440B
ISEN1
1
PGOO D
2
VCC_ 5V
3
VIN
4
EN/SS1
5
FB1
6
OCSET1
7
RST_ N
8
EN/ SS3
17
ISEN3
18
PHASE3
19
BO OT3
20
UGATE3
21
LGATE3
22
PGND
23
ISEN2
24
LG3
TP19
GND
1
Ext. V CC
R12
OPT, 10 K
Int. V CC
TP1
VIN
1
RL1
1.6
CL1
82 0p
TP2
GND
1
5V @ 15A
VO1
CI N3
10u
35V
Cf f3
3 30p
CIN6
10u
35V
3. 3V @ 14A+1A
TP12
EN1
1
CIN 8
10u
35V
RL2
1.6
CL2
82 0p
TP5
VO1
1
TP6
GND
1
FB3
VI N+
CI N2
10 0u
35 V
CVC C1 4 .7u
10V
VO3
Q6
OPT
TP17
GN D
1
EN 2
VCC 5V
R3
140 K
1%
R8 3 4K
1%
J2
1
LG2
ROC1
1 69K
PH3
J8
1
CO41
10u
Q5
OPT
CO21
OPT
CB10 .22u
16V
TP1 3
EN 3
1
ROC3
169 K
CIN1 1
10u
35V
QL3
RJK033 0DPB
R1 10 5K 1%
QU2
RJK03 05DPB
J3
EN1
1
2
2
3
CO 32
15 0u
16 V
CO 34
10 u
16 V
CO3 3
10 u
16 V
2. 5V @ 1A
CO3 5
150 u
16V
Sany o, 16 SVP15 0MX
Load Transien t Ci rcui t 3
J1 5
R18
OPT, 0. 1
R16
OPT, 10K
UG1
TP14
EN2
1
J16
ISTEP3
Q9
O PT, SUD 50N 03- 16P
TP18
GN D
1
VI N-
RPG1
10 0K
Q3
OPT
L1
2 .2u
IHL P5 050 FD ER2R2 M01
R11
10. 7K
1%
PH1
CO 42
1 50u
6. 3V
Sany o, 6TPE1 50MAZB
16V to 23V
CB3 0 .2 2u 16 V
R4 O PT
R7 0
J6
1
RFI N1
13
CSS1
22n
Rs en1
2K
J1 3
ISTEP2
QU1
R JK030 5DPB
Q8
O PT, SU D50 N03- 16 P
CO 25
33 0u
6. 3V
Sany o, 6TPF3 30M9L
En gine er: Ma njing Xie
Rse n3 1. 69 K
L2 1.5u
IH LP505 0FDER1R 5M0 1
L3
3.3u
IH LP505 0FDER3R 3M0 1
V01+
LG 1
Rsen 2
2.0 K
EN 1
R6
10K
1%


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