Intel 815 - Page 204

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:
int
e
l
R175_D
PLANE_CTL1
PCTL_IN V_GQ6
PLANE_CTL0
VR1_ADJ
VR5_ADJ
SLP_S3#13,35
PWROK13,30,35
TUAL54,5,7
VTTPWRGD5# 33
VTTPWRGD 4
VTTPWRGD12 5
VCC3_3
VCC1_8
VCC5 VCC5SBY
VCC5DUALVCC5
VCC5
VCC2_5
VCC5DUAL
VCC5SBY V3SB
VCC3SBYV3SBVCC3_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
12
R82
243 1%
12
C65
1200UF
12
C63
1200UF
12
C57
47UF
12
C56
47UF
12
C105
1200UF
12
C64
1200UF
12
C104
47UF
12
C110
47UF
12
C62
22UF-TANT
12
C16
22uF-Tant
12
C162
22UF-TANT
12
C103
1.0UF
12
C99
100UF-TANT
12
C98
100UF-TANT
12
C61
100UF-TANT
12
U8A
SN74LVC07A
2
147
1
VR2
1
23
GND
OUTIN
C14
10uF
12
C111
0.1UF
12
U9A
74LS132
3
14
1
2
7
+
-
U72B
LM393A
5
6
7
4 8
+
-
U72A
LM393A
3
2
1
4 8
R319
2.2k
12
R316
1k
12
Q22
MOSFET N
R314
20k
12
R318
732 1%
12
Q23
MOSFET N
R320
1k 1%
12
C437
0.1UF
12
R315
49.9 1%
12
R317
10 1%
12
Q21
MOSFET N
R321
1k
12
D1
BAT54C
2 1
3
C438
0.1UF
12
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
12
VR5
3
2
1
VIN
VOUT
ADJ
VR3
3
2
1
VIN
VOUT
ADJ
R83
243 1%
12
R33
220 1%
12
R32
470 1%
12
R31
4.7K
12