Intersil ISL9440CEVAL1Z, Application Note

Page: 6 / 12

6
AN1482
.0
June
30, 200
9
Schematic
Title
Size Document Number Rev
Date: Sheet of
<Doc> B
ISL9440CEVAL1Z EVALUATION BOARD
1 1 Monday , May 11, 2009
UG2
VIN
Cp3
DNP
VO2
LG2
R23 DNP
C2 22p
R21 0
PH1
CB2 0.1u
16V
Cf f 1 2.2n
CIN5
10u
25V
FB2
RL3
1.2
PH2
CL3
820p
VO1
R5 51
Enabled
M6
DNP
TP11
Int. VCC
1
TP3
PGOOD
1
Q1
Q2
M1
IRF7907
Q1
Q2
M3
IRF7907
R9 21.5K 1%
Cp2
DNP
C1 0.22u
R13 0
CO22
DNP
6.3V
Enabled
Cp1
3.3n
CO24
10u
6.3V
TP15
VO4
1
CO23
DNP
10V
CO34
DNP
6.3V
LDOFB
Enabled
M5
DNP
R2
102K
1%
CFIN1 0.47u
35V
CIN4
10u
25V
TP4
RST
1
5V @ 4A
CIN1
100u
25V
Disabled
TP16
GND
1
FB3
J4
EN3
1
1
2
2
3
3
TP7
VO2
1
TP8
GND
1
VIN
R4 DNP
R25
DNP
UG1
Disabled
VO3
CIN6
10u
25V
SV
IN
J5
EN2
1
1
2
2
3
3
Disabled
TP10
GND
1
TP9
VO3
1
LG3
R10
10K
1%
PH3
VO3
CO11
330u
2.0V
Sany o, 2R5TPE330M7
CO13
10u
6.3V
CO14
10u
6.3V
LG1
ROC2 200K
CO12
DNP
6.3V
VO2
Cf f 2 100p
U1
ISL9440C
ISEN1
1
PGOOD
2
VCC_5V
3
VIN
4
EN/SS1
5
FB1
6
OCSET1
7
RST_N
8
G4
9
LD
OF
B
10
SG
N
D
11
OC
S
E
T
2
12
FB
2
13
EN
/S
S
2
14
OC
S
E
T
3
15
FB
3
16
EN/SS3
17
ISEN3
18
PHASE3
19
BOOT3
20
UGATE3
21
LGATE3
22
PGND
23
ISEN2
24
PH
ASE2
25
BO
O
T
2
26
U
G
AT
E2
27
L
G
AT
E2
28
L
G
AT
E1
29
U
G
AT
E1
30
BO
O
T
1
31
PH
ASE1
32
33
PA
D
TP19
GND
1
Css1
10n
TP1
VIN
1
RL1
1.2
CL1
820p
TP2
VIN-
1
1V @ 6A
LDOFB
VO1
CIN3
10u
25V
OPT. Load Tran.
OPT. Load Tran.
OPT. Load Tran.
Cf f 3
100p
3.3V @ 5.0A+1.0A
TP12
EN1
1
R14 0
RL2
1.2
CL2
820p
TP5
VO1
1
TP6
1
VIN+
CIN2
100u
25V
CVCC1 4.7u
16V
TP17
GND
1
R19 0
VCC5V
Css3
10n
R3
105K
1%
R8 107K 1% C3
1u
EN3
ROC1
100K
UG3
Css2
10n
R26 DNP
CO41
10u
M8
DNP
CB1 0.1u
16V
R27
DNP
ROC3
200K
TP13
EN3
1
TP20
VIN
1
R24 DNP
M7
DNP
VIN
TP21
GND
1
VIN
EN1
R17 0
R1 25.5K 1%
J3
EN1
1
1
2
2
3
3
CO32
DNP
6.3V
R18 0
CO33
10u
6.3V
2.5V @ 1.0A
VO2
CO31
220u
6.3V
Sany o, 6TPE220MI
TP14
EN2
1
VIN-
RPG1
100K
L1 1.0u
TOKO, #919AS-1R0N
R11
34K
1%
M4
Si4423DY
CO42
100u
4.0V
4TPE100MZB
R22
DNP
CB3
0.1u
16V
PGOOD
R7 0
RFIN1 10
R15
0
Rsen1
1.82K
R20 0
CO21
220u
6.3V
Sany o, 6TPE220MI
R16
0
Rsen3 3.32K
L2 1.8u
TOKO, #919AS-1R8N
R12 0
L3 2.8u
TOKO, #919AS-2R8M
Q1
Q2
M2
IRF7907
Rsen2
3.32K
R6
20K
1%
Application Note 1482