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5
DDR1_5V
R486
+12V
2.2/6
C153
1u/6/X7R/16V/K
5VDUAL
Q75
BAT54C/SOT23/200mA/X
D10
D
SDM20E40C/0.4A/SOT23
R430
20K/4/1/X
DDR_EN
7
COMP
BOOT
UG
PHASE
R448
C146
20K/4/1
10p/4/NPO/50V/J
6
FB
LG/OC
C151
4.7n/4/X7R/25V/K
U9
ISL6545CBZ/S
LOOK 0.6V
PWR SEQ
DDR_EN
C
R522
Q77
22K/4
MMBT2222A/SOT23/600mA/40
SOT23
[18,28]
-PSON
Q89
R500
MMBT2222A/SOT23/600mA/40
22K/4
SOT23
[13,18,23]
-SLP_S3
[13,22]
-S4_S5
C160
1u/6/X7R/16V/K
POWER ISSUE
CPU_VTT
B
+12V
R875
D12
2.2/6
BAT54C/SOT23/200mA/X
2
BC200
1
R876
0.1u/4/Y5V/16V/Z
20K/4/1/X
GAIN X10
CPU_VTT_EN
7
COMP
BOOT
UGATE
PHASE
R878
C179
20K/4/1
220p/4/NPO/50V/J
6
FB
LG/OC
C180
0.027u/4/X7R/16V/K
A
LOOK 0.6V
U12
ISL6545CBZ/S
5
4
5VDUAL
OCP : Ipeak=(2xIocsetxRocset)/Rdson
C134
0.1u/4/Y5V/16V/Z
Iocset=21.5uA , Rocset=8.2k
L7
1.2uH/20A/PMU109/W/D
VIN1_5V
Q50
2SK3918/TO252/1300pF/7.5m
C141
C131
0.1u/4/X7R/16V/K
1u/6/X7R/16V/K
R352
2.2/6
1
2
PHASE1_5V
8
L
R425
4
CLOSE CHOKE
2.2/6
C139
R368
1n/4/X7R/50V/K
8.2K/4
R424
Q57
4.7K/4
2SK3918/TO252/1300pF/7.5m
[26]
0_6LEVEL_DDR
DDR_EN
5VSB
Q69
MMBT2222A/SOT23/600mA/40
R464
1K/4/1
SOT23
Q65
R458
MMBT2222A/SOT23/600mA/40
8.2K/4
SOT23
VCC
BC199
0.1u/4/Y5V/16V/Z
CHOKE08U-15A_1P-2
L8
1.2uH/20A/PMU109/W/D
VTT_BOOT
3
Q91
2SK3918/TO252/1300pF/7.5m
C177
C178
1u/4/X5R/6.3V/K
D
0.1u/4/X7R/16V/K
R877
2.2/6
1
VTT_H
2
G
S
PHASE1_1V
L9
8
0.6u/40A/IMD129/W/D
R879
D
8.2K/4
R880
4
2.2/6
R882
0/6
VTT_L
C181
G
S
1n/4/X7R/50V/K
R883
4.7K/4
Q92
2SK3918/TO252/1300pF/7.5m
4
3
2
X2
1
1
+
+
EC18
EC19
BC159
560u/FP/D/6.3V/68/8m
560u/FP/D/6.3V/68/8m
10u/8/X5R/6.3V/K
DDR_15V
L6
1.2uH/20A/PMU109/W/D
25A
max
PHASE1_5V
BC153
0.1u/4/Y5V/16V/Z
R460
2K/4/1
L
0_6LEVEL_DDR
R468
1.27K/4/1
1
1
+
+
EC22
EC23
560u/FP/D/6.3V/68/8m
560u/FP/D/6.3V/68/8m
BC201
10u/8/X5R/6.3V/K
CPU_VTT
1
1
1
+
EC8
+
EC11
+
R894
R881
200/4/1
2K/4/1
820u/FP/D/2.5V/69/7m
C185
820u/FP/D/2.5V/69/7m
820u/FP/D/2.5V/69/7m
5.6n/4/X7R/25V/K
VCC1_1=1.15V
R884
2.2K/4/1
VTTD_ADJ [26]
3
2
1
Q58
2SK3918/TO252/1300pF/7.5m
N/A
5VSB
CPU_VTT_EN
Q94
R892
MMBT2222A/SOT23/600mA/40/X
8.2K/4/X
SOT23
VCC3
C183
1n/4/X7R/50V/K/X
R893
8.2K/4/X
Q95
SOT23
MMBT2222A/SOT23/600mA/40/X
C184
1n/4/X7R/50V/K/X
PHASE1_1V
EC7
Q93
2SK3918/TO252/1300pF/7.5m
VTT_L
Gigabyte Technology
Title
DDR_15V
Size
Document Number
GA-H55M-S2
Custom
Date:
Tuesday, October 05, 2010
Sheet
24
of
1
D
C
B
A
Rev
1.3
31
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