7
AN1396
.0
July 31, 200
8
ISL6238xxxEVAL1Z Evaluation Board Schematic
ISL62381LOEVAL1Z
04/10/08
REV A
1
1
Q14
0.68
R35
OPEN
C35
L2
4.7UH
1200PF
R13
C14
1200PF
VOUT1
SUD50N03_07
Q11
Q13
SUD50N03_07
2N7002
IRF7821
Q4
IRF7832
IRF7821
10UF
1UF
R34
200
SW1
BAT54S
SSL_LXA3025IGC
2N7002
Q6
ISL62381HRTZ
R9
OPEN
C36
OPEN
R23
TP16
R38
TP5
R10
C9
C19
L1
R3
R7
C6
R37
R36
J7
J6
R19
R16
R41
C8
U1
R39
R40
R25
R14
C25
R22
R18
R4
R26
D4
C16
R2
R27
R8
C7
R11
R12
C17
D1
D2
TP20
R17
R20
C18
U4
U3
R32
R33
Q10
C31
C32
SW2
TP19
D3
Q12
TP13
R28
R5
R6
C24
Q8
Q5
TP14
TP15
C21
TP7
C11
C13
C15
Q2
Q7
Q3
U2
J3
J1
TP17
TP8
TP9
TP10
R31
R21
R24
C34
C22
C23
C30
TP6
TP18
Q1
R15
J5
R29
C10
TP3
C12
Q9
TP2
TP1
C1
C2
C33
C4
C5
TP11
TP12
C29
C28
C26
C27
J4
1.58K
10K
VCC1
0.22UF
0.01UF
0.22UF
10UF
2N7002
LDO3EN
EN1
EN2
OPEN
100K
78B04S
1UF
4.7UF
10UF
0.022UF
PHASE2
1UF
45.3K
15.8K
15.8K
15.8K
68.1K
LDO5
0
OPEN
EN2
750
PHASE2
10UF
VCC1
PHASE1
100K
0
VOUT1
1K
VOUT2
200
0
1K
EN1
10UF
9.09K
100K
2N7002
4.7UH
LDO3EN
10UF
HIP2100
10UF
1K
1UF
0
LDO5
0
HIP2100
10UF
OPEN
0.47
499
OPEN
19.6K
BAT54S
499
1UF
48.7K
750
15.8K
OPEN
100K
100K
LDO3
10K
LDO5
FCCM
100K
VOUT2
SSL_LXA3025IGC
OPEN
LDO3FB
17.4K
48.7K
0.01UF
24.3K
OPEN
4.7UF
VOUT1
4.7UF
330UF
4.7UF
4.7UF
330UF
VOUT2
OPEN
OPEN
OPEN
OPEN
R1
J2
C3
56UF
TP4
0.022UF
IRF7832
PHASE1
4.7UF
C20
R30
FCCM
1 2
EP
FB1
OCSET2
FB2
VOUT2 ISEN2
EN2
PHASE2
UGATE2
BOOT2
LGATE2
PGND
LDO5
VIN
LDO3IN
LDO3
LDO3FB
LGATE1
BOOT1
UGATE1
PHASE1
EN1
OCSET1
ISEN1
VOUT1
PGOOD1
FSET1
FSET2
PGOOD2
FCCM
VCC2
LDO3EN
VCC1
RED
GRN
1 2
1 2
HI
LO
HS
HO
LI
VSS
VDD
HB
+12V
HI
LO
HS
HO
LI
VSS
VDD
HB
VBAT
VBAT
VBAT
VBAT
RED
GRN
TITLE:
ENGINEER:
DRAWN BY:
SHEET:
DATE:
REV:
OF
E
D
C
B
A
7
6
5
4
3
2
1
E
D
C
B
A
F
F
8
Application Note 1396