LG U8138 Service Manual page 71

3. TECHNICAL BRIEF
Pin Name
B12 VDD_A
A11 VDD_B
M11 VDD_D
L12 VDD_E
L2 VDDLP
A2 VDDBUCK
B1 VSSBUCK
Figure. Power Supply Scheme
Type Output voltage
Power Supply 2.75V
Power Supply 2.75V
Power Supply 2.75V
Power Supply
Power Supply
Power Supply Unused: VBAT
Power Supply
Table BDATA channel spec
- 72 -
Description
Supply output
Supply output
Supply output
1.8V Supply output
1.5V Low Power supply output
Buck converter switch supply
GND Buck converter switch ground