Voltage regulators, Intel, Vcc 3.3v standby voltage switch – Intel 815 User Manual
Page 204
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5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
SN74LVC07A HAS 5V INPUT AND OUTPUT TOLERANCE
DO NOT POPULATE
DO NOT POPULATE
PLACE C99 AT
THE REGULATOR
LT1587-ADJ
LT1587ADJ
LT1117-3_3
LT1587ADJ
VCC 3.3V Standby VOLTAGE SWITCH
This generates 3.3V Standby Power which is on in
S0, S1, S3, S4 & S5. It passes 3.3V from the ATX
supply in S0/S1, and 3.3VSB (generated by VR2
below) in S3/S4/S5.
VCC 1.8 VOLTAGE REGULATOR
VCC 3.3VSB REGULATOR
VTT 1.5V VOLTAGE REGULATOR
VCC 2.5 VOLTAGE REGULATOR
NPOP
Voltage Regulators
2.0 ms
delay
nominal
INTEL(R) 82815 CHIPSET CUSTOMER REFERENCE BOARD
VOLTAGE REGULATORS
40
1.0
3-26-01
31
Platform Apps Engineering
1900 Prairie City Road
Folsom, CA 95630
REV.
R
Last Revision Date:
Sheet:
of
Title:
intel
R175_D
PLANE_CTL1
PCTL_IN
V_GQ6
PLANE_CTL0
VR1_ADJ
VR5_ADJ
SLP_S3#
13,35
PWROK
13,30,35
TUAL5
4,5,7
VTTPW RGD5#
33
VTTPWRGD
4
VTTPW RGD12
5
VCC3_3
VCC1_8
VCC5
VCC5SBY
VCC5DUAL
VCC5
VCC5
VCC2_5
VCC5DUAL
VCC5SBY
V3SB
VCC3SBY
V3SB
VCC3_3
VCC5SBY
VCC3SBY
VCC5SBY
VCC12
VCC3_3
VCC5
VTT
VCC12
VTT
VCC5
VCC5
V1_8SB
V1_8SB
VCC5
VCC5
R89
0K
1
2
R176
0K
1
2
R175
0K
1
2
R82
243 1%
1
2
C65
1200UF
1
2
C63
1200UF
1
2
C57
47UF
1
2
C56
47UF
1
2
C105
1200UF
1
2
C64
1200UF
1
2
C104
47UF
1
2
C110
47UF
1
2
C62
22UF-TANT
1
2
C16
22uF-Tant
1
2
C162
22UF-TANT
1
2
C103
1.0UF
1
2
C99
100UF-TANT
1
2
C98
100UF-TANT
1
2
C61
100UF-TANT
1
2
U8A
SN74LVC07A
2
14
7
1
VR2
1
2
3
GND
OUT
IN
C14
10uF
1
2
C111
0.1UF
1
2
U9A
74LS132
3
14
1
2
7
+
-
U72B
LM393A
5
6
7
4
8
+
-
U72A
LM393A
3
2
1
4
8
R319
2.2k
1
2
R316
1k
1
2
Q22
MOSFET N
R314
20k
1
2
R318
732 1%
1
2
Q23
MOSFET N
R320
1k 1%
1
2
C437
0.1UF
1
2
R315
49.9 1%
1
2
R317
10 1%
1
2
Q21
MOSFET N
R321
1k
1
2
D1
BAT54C
2
1
3
C438
0.1UF
1
2
Q5
SI4410DY
1
2
3
4
5
6
7
8
U2
SI4410DY
1
2
3
4
5
6
7
8
U3
SI4410DY
1
2
3
4
5
6
7
8
Q4
NDS356AP
G
S
D
G
S
D
Q1
NDS356AP
G
S
D
G
S
D
Q2
NDS356AP
G
S
D
G
S
D
Q7
SI4410DY
1
2
3
4
5
6
7
8
CR1
1
2
CR2
1N5822
1
2
Q3
MMBT3904LT1
Q6
NDS356AP
G
S
D
G
S
D
VR1
3
2
1
VIN
VOUT
ADJ
R92
10K
1
2
VR5
3
2
1
VIN
VOUT
ADJ
VR3
3
2
1
VIN
VOUT
ADJ
R83
243 1%
1
2
R33
220 1%
1
2
R32
470 1%
1
2
R31
4.7K
1
2