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3-20-2000_10:15 35
VOLTAGE REGULATORS
Q19
5
6
7
8
3
2
1
4
301-1%
R509
CMDSH-3
CR9
C
A
R295
10K
SBY_ITH_R
100UF
C314
21
C312
0.1UF
V_BOOST
C306
4.7UF
1
2
C299
1000PF
C292
100PF
100PF
C293
C307
0.1UF
2
1
330PF
C296
VR7
8
7
6
10
11
15
12
14
16
13
5
3
2
1
4
9
CDRH127-6R1
10UH
L23
C294
0.1UF
100UF
C425
1
2
1UF-X7R
C424
2
1
VR9
3
2
1VCC1_8SBY_ADJ
131-1%
R510
1UF-X7R
C315
12
100PF
C304
C325
330UF
1
2
C326
330UF
2
1
CR10
MBRS130LT3
C
A
100-1%
R297
0.01
R325
100-1%
R301
R302
35.7K20K
R294
VCC3_3SBY_L
VCC3_3SBY_BG
VCC3_3SBY_SENSE+
VCC3_3SBY_VOSENSE
VCC3_3SBY_SENSE-
VCC3_3SBY_COSC
VCC3_3SBY_ITH
VCC3_3SBY_TG
VCC3_3SBY_SW
VCC3_3SBY_INTVCC
Q11
5
6
7
8
3
2
1
4
C426
100UF
2
1
C295
68PF
VCC3_3SBY_RUN
10K
R508
10K
R540
Q17
1
2
3
4
6
5
7
8
Q20
1
2
3
4
6
5
7
8
8,9
SLP_S5#
U14
1011
7
14
U23
2
7
14
3
1
U24
2
3
7
14
1
VCC2_5SBY
VCC5SBY
VCC3_3SBY
VCC3_3SBY
VCC5SBY
VCC3_3SBY
VCC5DUAL
VCC3_3SBY
G1
S1
S2
S3
D1
D2
D3
D4
SI9426DY
DRAWN BY:
LAST REVISED: SHEET:
FOLSOM, CALIFORNIA 95630
1900 PRAIRIE CITY ROAD
87 6 54 32 1
A
B
C
D
12345678
D
C
B
A
PCG PLATFORM DESIGN
REV:
0.5
PROJECT:
OF 40
TITLE: INTEL(R) 820E CHIPSET 2 DIMM FCPGA REFERENCE BOARD
R
PCG AE Camino2
-
+
+
+
+
LT1435
RUN/SS
ITH
SGND
VIN
TG
SW
INTVCC
BOOST
BG
PGND
SENSE-
SENSE+
COSC
SFB
VOSENSE
EXTVCC
+
+
VIN
VOUT
ADJ
LT1587ADJ
+
+
+
-
+
VCMOS1_8SBY
VCC5DUAL
G1
S1
S2
S3
D1
D2
D3
D4
SI9426DY
VCC3_3SBY
+
VCC5DUAL
SI6467DQ
D3
S4
D2
S3
G1
S2
S1
D1
SI6467DQ
D3
S4
D2
S3
G1
S2
S1
D1
VCC5DUAL
SN74LVC07A
GND
VCC
VCC3_3SBY
SN74HC03
VCC
GND
VCC3_3SBY
GND
VCC
SN74LVC02A
Voltage Regulators
VCC 1.8 STANDBY VOLTAGE REGULATOR
VCC 3.3 Standby Voltage Regulator
Do not stuff C304.
T510
Place C426 at regulator.
Do not stuff C292.