Power Management Ic (Adp3522, U301) - LG G1610 Service Manual

3.7 Power Management IC (ADP3522, U301)

Block Diagram
ADP3522
110K
PWRONKEY 34
ROWX 31
PWRONIN
27
SIMEN
1
CHARGER
DETECT
TCXOEN
28
RESCAP
15
CHRDET
6
EOC
13
CHGEN
14
LI-ION
GATEIN BATTERY
10
CHARGE
CONTROLLER
BATSNS
4
µPROCESSOR
CHARGE
ISENSE
INTERFACE
12
GATEDR
9
CHRIN
7
MVBAT
5
AGND
VSIM
VCORE
VRTC
VAN
VTCXO
VMEM
Q S
R
SHUTD OWN
RESET
GENERATOR
&
Figure 3-12 Block Diagram of ADP3522
Table 3-7 LDOs of ADP3522
1.8V(is provided to the AD6525 & AD6521 s digital core)
2.0V(is provided to the RTC and Backup Battery)
2.55V(is provided to the AD6521 I/O and used as microphone bias)
VBAT VRTCIN
22
DEEP
DISCHARGED
UVLO
UVLO
OVER TEMP
Description
2.85V(is provided to SIM card)
2.75V(is provided to VCTCXO)
2.8V(is provided to Flash)
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3. TECHNICAL BRIEF
VBAT2 SIMVSEL
2 19 8
SIM LDO
VSEL
VBAT
OUT
VREF
EN
DGND
DIGITAL COR E LDO
VBAT
OUT
VREF
PG
EN
DGND
ANALO G L DO
VBAT
VREF
OUT
EN AGND
TCXO LD O
VBAT
VREF
OUT
EN
AGND
MO M OR Y LDO
VBAT
VREF
OUT
DGND
EN
RTC LDO
VBAT
OUT
VREF
DGND
EN
EN
RE F
BU F R FE
1.21V
18 VSIM
VCORE
21
VAN
23
RESET
16
VTC XO
25
VMEM
20
3 VRTC
REFOUT
26
AGND
27
DGND
11