5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
ST1_5
ST2_5
ST3_5
ST4_5
DR_5
TRIM_7
VO_15
PWRGD2_5
PWRGD_5
O1_5
U1_5
O2_5
U2_5
TRIM_6
VDD_6
DR_3
DR_2
DR_1
DR_4
3.3V_A
1.0VCC
12VCC
2.5VCC
3.3VCC
3.3VCC
3.3VCC
3.3VCC
2.5VCC
1.0VCC
5V_A
12V_A
5V_A
3.3V_A
5V_A
12VCC
12V_A
3.3VCC
3.3VCC
Title
Size
Document Number
Rev
Date:
Sheet
of
91-0081-000-A
2
PLX TECHNOLOGY, INC.
870 W Maude Ave, Sunnyvale, CA 94085
B
4
6
Wednesday, July 16, 2008
www.plxtech.com
Title
Size
Document Number
Rev
Date:
Sheet
of
91-0081-000-A
2
PLX TECHNOLOGY, INC.
870 W Maude Ave, Sunnyvale, CA 94085
B
4
6
Wednesday, July 16, 2008
www.plxtech.com
Title
Size
Document Number
Rev
Date:
Sheet
of
91-0081-000-A
2
PLX TECHNOLOGY, INC.
870 W Maude Ave, Sunnyvale, CA 94085
B
4
6
Wednesday, July 16, 2008
www.plxtech.com
1A
8A
Trim up
4A
10A
6A
12V-TO-1.0V DC/DC CONVERTER
3.3V-TO-2.5V LDO
PEX8647RDK
POWER AND VOLTAGE MONITOR
PEX8647 VOLTAGE MONITOR CIRCUIT
R34-R35 CAN BE INSTALLED TO ADJUST
THE OUTPUT VOLTAGE OF U13.
ATX HD POWER CONNECTORS
5V-TO-3.3V DC/DC CONVERTER
POWER INDICATOR LEDS
D8 is green: 2.5VCC is within the 10% range
D8 is red: 2.5VCC is out of range
D9 is green: 1.0VCC is within the 10% range
D8 is red: 1.0VCC is out of range
A copper trace connects
pin 1-2 of JP7
WARNING: The ATX HD power connector J2 and J3
should be connected to the same DC Source
TV2
TV2
TV6
TV6
U6
S7AH-08E1A0
U6
S7AH-08E1A0
Vin
2
Vout
4
On/Off
1
Gn
d
3
Trim
5
NC
6
NC
7
TV8
TV8
R37
1.2K
R37
1.2K
R39
360
R39
360
+
C111
22uF
+
C111
22uF
D3
GREEN
D3
GREEN
2
1
R26
464 1%
R26
464 1%
G
R
D8
CMD15-22SRUGC
G
R
D8
CMD15-22SRUGC
2
1
3
4
U7
S7AH-08E1A0
U7
S7AH-08E1A0
Vin
2
Vout
4
On/Off
1
Gn
d
3
Trim
5
NC
6
NC
7
TV7
TV7
TV5
TV5
J3
53113-0410
J3
53113-0410
+12VDC
1
COM
2
COM
3
+5VDC
4
R41
150
R41
150
C115
10uF
C115
10uF
R27
2.32K 1%
R27
2.32K 1%
C116
1uF
C116
1uF
C119
1uF
C119
1uF
R22
3.09K 1%
R22
3.09K 1%
C118
10uF
C118
10uF
R24
5.76K 1%
R24
5.76K 1%
C112
1uF
C112
1uF
R29
4.7K
R29
4.7K
TV1
TV1
D4
YEL
D4
YEL
2
1
R86
NL
R86
NL
RN2
4.7K
RN2
4.7K
1
2
3
4
5
6
7
8
G
R
D9
CMD15-22SRUGC
G
R
D9
CMD15-22SRUGC
2
1
3
4
R38
1.2K
R38
1.2K
C120
1uF
C120
1uF
JP7
2-P JPR
JP7
2-P JPR
1
2
D2
GREEN
D2
GREEN
2
1
+
C113
180uF
+
C113
180uF
U5
ISL6132
U5
ISL6132
VDD
23
GN
D
10
EN1
1
EN2
11
UVMON_1
20
OVMON_1
12
UVMON_2
17
OVMON_2
14
UVSTATUS_1
2
OVSTATUS_1
5
UVSTATUS_2
6
OVSTATUS_2
7
PGOOD
24
PGOOD2
9
NC
13
NC
15
NC
16
NC
18
NC
19
NC
21
NC
22
NC
3
NC
4
NC
8
+
C109
22uF
+
C109
22uF
R25
7.32K 1%
R25
7.32K 1%
C114
1uF
C114
1uF
R28
4.7K
R28
4.7K
R34
1.30K, 1%
R34
1.30K, 1%
U8
MIC37100
U8
MIC37100
VIN
1
VOUT
3
GN
D
2
TA
B
4
R23
1.18K 1%
R23
1.18K 1%
R31
390
R31
390
R36
37.4K 1%
R36
37.4K 1%
R35
NL
R35
NL
+
C117
47uF
+
C117
47uF
R32
390
R32
390
J2
53113-0410
J2
53113-0410
+12VDC
1
COM
2
COM
3
+5VDC
4
D1
GREEN
D1
GREEN
2
1
C121
10uF
C121
10uF
R33
390
R33
390
R40
150
R40
150
R30
390
R30
390
D5
GREEN
D5
GREEN
2
1
+
C160
47uF
+
C160
47uF
C110
1uF
C110
1uF
C108
0.1uF
C108
0.1uF
