
3. TECHNICAL BRIEF
- 45 -
Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
LG530G
29/87
Table 3.6.2 Voltage regulator summary
1. All regulator names are based on their intended use, though some may be used to power alternate
functions. For example, the USIM regulator is intended to power an external SIM card but may be used to
power other circuits (or not used at all).
2. Each current listed in this table is its regulator's rated value – the current at which the regulator meets all
its performance specifications. Higher currents are allowed, but higher input voltages may be required and
some performance characteristics may become degraded. See the appropriate regulator sections for
details.
3. VREG_MSMP powers key internal circuits and should be kept on at its default voltage setting.
4. All regulators have default output voltage settings, even if they default to an off condition.
1. All regulator names are based on their intended use, though some may be used to power alternate functions. For
example, the USIM regulator is intended to power an external SIM card but may be used to power other circuits (or not
used at all).
2. Each current listed in this table is its regulator’s rated value – the current at which the regulator meets all its perfor-
mance specifications. Higher currents are allowed, but higher input voltages may be required and some performance
characteristics may become degraded. See the appropriate regulator sections for details.
3. VREG_MSMP powers key internal circuits and should be kept on at its default voltage setting.
4. All regulators have default output voltage settings, even if they default to an off condition.
Type/name
1 2
Dafault conditions
4
Voltage range
Intended use
SMPS - boost (600 mA) Off, 5.000 V
3.000 to 6.100 V
USB-OTG, camera flash, high-power audio
SMPS - buck
MSMC (500 mA)
RF1 (500mA)
RF2 (500mA)
On,1.225 V
On,2.300 V
On,1.400 V
0.750 to 3.050 V
0.750 to 3.050 V
0.750 to 3.050 V
Processor core
First stage regulator for subregulation set 1
First stage regulator for subregulation set 2
Linear - 300mA
MSME
MSMP
3
RFA
GP2
On,1.800 V
On,2.600 V
Off,2.200 V
Off,2.900 V
1.500 to 3.050 V
1.500 to 3.050 V
1.500 to 3.050 V
1.500 to 3.050 V
EBI circuits and extemal memory, pads
Pad voltage for digital I/Os
RF and analog circuits
Extemal WLAN circuits
Linear - 150mA
RFRX2
RFTX2
CDC2
MPLL
USIM
GP1
Off, 1.300 V
Off, 1.300 V
Off, 1.300 V
Off, 1.300 V
Off, 1.800 V
Off, 2.850 V
0.750 to 1.525 V
0.750 to 1.525 V
0.750 to 1.525 V
0.750 to 1.525 V
1.500 to 3.050 V
1.500 to 3.050 V
RF receiver circuits
RF transmitter circuits
Audio codec circuits
Digtal PLL circuits
USIM circuits and interface
Extemal Bluetooth circuits
Linear - 50mA
TCXO
USB_2P6
USB_3P3
On,2.850 V
Off,2.600 V
Off,3.300 V
1.500 to 3.050 V
1.500 to 3.050 V
3.000 to 6.100 V
TCXO and xo circuits
USB circuits and interface at 2.6V
USB circuits and interface at 3.3V
SMPS -NCP (200 mA)
Off,1.800V
N/A
Headphone negative voltage supply