- Power-on Reset Generator with logic state machine
- I2C bus interface
- I2C bus configurable mode control logic with ON (push-button or RTC), VCXOEN and LRF3EN
(wake-up by Bluetooth) inputs
- Programable interrupt channels to handle peripherals like SIM, MMC and USB
- Monitoring of charging functions
- Undervoltage Shut-Down
- Errorflags (volatile or non-volatile) from many power-supply functions and thermal sensor in order to
debug system
- Overtemperature Shut-Down
- Overtemperature Warning
- Support of S-GOLD standby power-down concept
- Support of S-GOLD Power-Down Pad Tristate Function
Table 6. LDO Output Table of SM-Power
- 34 -
3. TECHNICAL BRIEF
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LDO Net name Output Voltage Output Current Usage
SD1 1V35_Core 1.35V 600mA Core & for LDO
SD2 1V8_SD 1.8V 300mA Memory
VAUX 2V85_VAF 2.85V 100mA Cam Auto Focus
VIO 2V62_VIO 2.62V 100mA Peripherals
VSIM 2V9_SIM 2.9V 70mA SIM card
VMME 2V8_VMME 2.9V 150mA u-SD
VUMTS 2V85_AMP 2.85V 110mA Headset AMP
VUSB VUSB 3.1V 40mA Not used
VLED VLED 2.9V 10mA Not used
VAUDIOa 2V5_VAUDA 2.5V 200mA Stereo headset, Mono earpiece
VAUDIOb 2V5_VAUDB 2.5V 50mA Analog parts of S-Gold
VRF1 2V85_VRF 2.85V 150mA 2.85 V supply for SMARTi-PM RF transceiver
VRF2 1V5_VRF 1.53V 100mA 1.5 V supply for SMARTi-PM RF transceiver
VRF3 2V65_VBT 2.7V 150mA Bluetooth
VPLL 1V35_VPLL 1.35V 30mA S-GOLD3 PLL
VRTC 2V11_RTC 2.11V 4mA Real Time Clock
VAFC VAFC 2.65V 5mA Not used
VVIB 2V8_CAM_A 2.8V 140mA LCD
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