User's Manual
11-18-1999_11:24 28
VRM 8.2
VRM_G2
VRM_G1
Q4
4123
8765
R71
5.1-5%
OUTEN
VRM_PWRGD
4,31
2200UF
C100
2
1
C93
2200UF
1
2
2200UF
C103
2
1
JP9JP10 JP7JP6 JP8
R65
20
1200UF
C87
2
1
C111
1200UF
1
2
1200UF
C107
2
1
R55
8.2K
R53
5.6K
R332
220
3
VID[4:0]
VID2
VID3
VID4
VID0
VID1
2.7K
R54
VRM_COMP
VRM_SS
VRM_IFB
VRM_FAULT
VRM_VFB
VRM_COMP_R
R80
10K
C82
1200UF
1
2
C110
2200UF
1
2
Q5
5678
3214
Q3
5678
3214
Q2
4123
8765
PVCC_R
C72
0.01UF
1
2
C90
0.1UF
C73
150PF
C75
0.1UF
C86
0.1UF
10UF
C140
2
1
C74
0.01UF
C71
1000PF
1UF-X7R
C118
2
1
1UF-X7R
C119
1
2
VR3
18
17
16
15
14
19
6
9
4
3
7
13
20
8
1
5
2
12
10
11
VRM_IMAX
ETQP6F0R8L
1.0UH-20A
L18
IFB_Q
VRM_VCC5
DO3316P-102
1UH
L19
1UF-X7R
C97
2
1
PCD PLATFORM DESIGN
REV:
DRAWN BY:
LAST REVISED:
PROJECT:
SHEET:
FOLSOM, CALIFORNIA 95630
1900 PRAIRIE CITY ROAD
87654321
A
B
C
D
12345678
D
C
B
A
1.01
TITLE: INTEL(R) 820 CHIPSET CUSTOMER REFERENCE BOARD
OF 36
R
G1
S1
S2
S3
D1
D2
D3
D4
SI4410DY
VCC3_3
+
+
+
+
+
+
VCCVID
VCC5
VCC12
+
+
G1
S1
S2
S3
D1
D2
D3
D4
SI4410DY
G1
S1
S2
S3
D1
D2
D3
D4
SI4410DY
G1
S1
S2
S3
D1
D2
D3
D4
SI4410DY
+
+
+
+
LTC1753
SENSE
SS
SGND
GND
VCC
PVCC
COMP
VID4
VID3
VID2
VID1
VID0
OUTEN IMAX
PWRGD
FAULT#
G1
G2
IFB
VFB
VCC5
+
Sanyo 4SP2200M
No Stuff C106
VID Override Jumpers
C118, C119 must be next to FETs.
C82,C87,C107,C111 must support >6A of RMS current.
Place caps next to output FETs.
VRM
VRM requirements are based on VRM8.4 spec .