LG MG810c Service Manual page 36

D. Voltage Regulation(VREG)
There are 7 LDO(Low Drop Output) regulators in ABB chip.
The output of these 7 LDOs are as following table.
VRDBB
VRIO
VRMEM
VRRAM
VRABB
VRSIM
VRRTC
(Figure 24.) shows the power supply related blocks of DBB/ABB and their interfaces in KG810
O utput Voltage
1.5V
2.8V
2.8V
2.8V
2.8V
2.85
1.5V
Table 9. LDO Output Table
Figure 23. Power Supply Scheme
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3. H/W Circuit Description
Usage
Digital Core of DBB
Peripheral devices
External memory
LCD & peripheral devices
Analog Block of ABB
SIM card driver
RTC & 32kHz-crystal