Intel VC820 - Desktop Board Motherboard Design Manual page 193

8 7
Voltage Regulators
D
VCMOS Generator For Rambus
VCC2_5SBY
3
9 SLP_S5#
C
MMBD914LT1
VCMOS1_8SBY
C263
B
A
8 7
6
VR7
LT1435
4
CR8 VCC2_5SBY_COSC 1
1
VCC2_5SBY_RUN 2
VCC2_5SBY_ITH 3
C295
5
C294
6
C296
9
C293
C292
Do not stuff C292.
6
5 4
VCC 2.5 Standby Voltage Regulator
VCC2_5SBY_TG
VCC2_5SBY_SW
Q11
SI4966DY
13
SFB VIN
16
COSC TG
14
RUN/SS SW
12 VCC2_5SBY_INTVCC
ITH INTVCC
15 V_BOOST
SGND BOOST
11
VOSENSE BG A
1 +
10
EXTVCC PGND
1 -
C
2
C312
2
VCC2_5SBY_BG
C299 1000PF
VCC2_5SBY_SENSE+
VCC2_5SBY_SENSE-
VCC2_5SBY_VOSENSE
5 4
3 2
VCC5DUAL
C315 1UF-X7R
1 2
+
C314 100UF
1 2
+
L23
R325
0.01
10UH
CDRH127-6R1
C
-
0.1UF
+
A
TITLE: INTEL(R) 820 CHIPSET CUSTOMER REFERENCE BOARD
VOLTAGE REGULATORS
PCD PLATFORM DESIGN
R
1900 PRAIRIE CITY ROAD
FOLSOM, CALIFORNIA 95630
3 2
1
D
VCC2_5SBY
Do not stuff C304.
C
C304
1 1
C325 C326
T510
2 2
B
A
REV:
1.01
DRAWN BY: PROJECT:
LAST REVISED: SHEET:
11-18-1999_11:28 30 OF 36
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