LG KE600 - Cell Phone Service Manual page 36

R202 220K
RTC_OUT PWRON
R204
470K
SPOWER_INT
VBAT
1V8_MEM 3V1_USB 1V5_RF
VCHS
PWRON
USB_PU
VBUS_USB
C213 C214 C215 C216 C217
0.1u 22u 22u 2.2u 2.2u
2V72_IO 2V85_MMC 2V85_IO2 2V85_SIM VBAT
C231 C232 C233 C234
2.2u 2.2u 2.2u 2.2u
Figure 6 SM-Power circuit diagram with charging part
VCHG
R203 4.7K
VBACKUP
VCH_CTL
PMRSTn
VBAT
1
VCHS
2
VBATS
3
VRFC
4
ON
5
U201
VDDPW
6
SW
L201 10uH
7
PMB6812
VSSPW
8
VSSFB
9
FB
10
VUPU
11
VUSB
12
VBUS
C218
2.2u
C235
0.1u
- 37 -
3. TECHNICAL BRIEF
2V11_RTC 1V5_CORE 1V5_DSP 2V85_RF VBAT 2V7_VCXO
C203 C204 C205 C206 C207 C208
2.2u 2.2u 2.2u 2.2u 2.2u 2.2u
2V65_ANA
36 TP604
VCXOEN VCXO_EN
35
VDDA
34
VANA
33
VSSR
32 R208 82K C211
IREF
C210 0.1u
31
BYP
30 2.2u
VDDAU
29 TP211
AUOP
28
TP212
AUON
27
VSSAU
26 TP213
AUIP
25 TP214
AUIN
VCHG
R209 C227 Q201 C228
6
S2
100K 10u
47n
4
S1
3
G
1
D3
2
D2
5
D1
NDC652P
D201
CRS08
R212 VBAT
0.15
C237
100u
2V65_BT
C209
2.2u
VBAT
C212
2.2u
VCH_CTL
VCHS