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5
D
VPH_PWR
C1205
C1204
22uF
22uF
C
B
A
5
4
U1001-4
PM8941
VREG1
14
VDD_S1
15
GND_S1
2
VDD_S2
17
GND_S2
64
VDD_S3
95
GND_S3
C1201
C1202
C1203
2.2uF
2.2uF
2.2uF
16
VSW_5V
VPH_PWR
32
VSW_5V
133
VIN_5VS
4
3
L1202 TFM252010GHM 2.2UH 20% 2.9A 0.070OHM ROHS
Feedback, signal trace route back from C1208
1125mA
23
VREG_S1
VSW_S1A
7
L1202
VSW_S1
1225mA from BAT (max)
33
Feedback, signal trace route back from C1209
VREG_S2
1
VSW_S2A
L1203
VSW_S2
9
930mA from BAT (max)
VSW_S2
87
Feedback, signal trace route back from C1210
VREG_S3
79
L1204
VSW_S3
1560mA from BAT (max)
140
300mA
VOUT_LVS1
111
300mA
VOUT_LVS2
124
300mA
VOUT_LVS3
47
VREG_5V_SNS
8
VREG_5V
24
VREG_5V
48
GND_5V
141
500mA
VREG_OTG
VOUT_5VS_OTG
125
VREG_HDMI
VOUT_5VS_HDMI
192
VREG_FAULT
3
2
VREG_S1A_1P3
VREG_S2A_2P15
C1208
47uF
2.2uH
1.3v 2000mA for device
2.2uH
2.15v 1000mA for device
2.2uH
1.8v 2000mA for device
VREG_LVS1_1P8
VREG_LVS2_1P8
R1205
0R
<Variant Name>
<Variant Name>
<Variant Name>
Lenovo
Lenovo
Lenovo
Title
Title
Title
K920
K920
K920
Size
Size
Size
Document Number
Document Number
Document Number
A4
A4
A4
P12. PM8941 SMPS
P12. PM8941 SMPS
P12. PM8941 SMPS
Date:
Date:
Date:
Tuesday, August 05, 2014
Tuesday, August 05, 2014
Tuesday, August 05, 2014
2
1
D
C1209
VREG_S3A_1P8
47uF
C
C1210
47uF
B
A
Rev
Rev
Rev
0.11
0.11
0.11
Sheet
Sheet
Sheet
12
12
12
of
of
of
58
58
58
1
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