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3. HW Circuit Description
3.14 Power Block Interface
There are 10 LDOs(Low Drop Output) regulators and 1 DC-DC converter in ABB chip.
The output of these 10 LDOs and 1 DC-DC converter is as following table.
VREXTL
VREXTH
VRMEM
VRMMC
VRABB
VRSIM
VRUSB
VRPLL
VRIO
VRWLED
LGE Internal Use Only
Output Voltage
1.8V/2.8V, 1.3V/1.03V
1.8V/2.8V
1.8V
1.8V/2.85V
2.8V
1.8V/2.85V
3.3V
1.4V/1.3V/1.05V
1.8V
20V
Table LDO Output Table
- 36 -
Usage
Digital Core of DBB
Peripheral Devices
External Memory
RF
Analog Block of ABB
SIM Card Drive
USB Block
PLL Block
I/O Interface
White LED Drive
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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