3. TECHNICAL BRIEF
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SM-POWER offers several control functions
- 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
- Programmable interrupt channels to handle peripherals like SIM, MMC and USB
- Monitoring of charging functions
- Under-voltage Shut-Down
- Error flags (volatile or non-volatile) from many power-supply functions and thermal sensor in order
to debug system
- Over--temperature Shut-Down
- Over-temperature 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
LDO Net name Output Voltage Output Current Usage
SDBB 1V8_MEM 1.8V 850mA Memory & for LDO
LRFC 1V5_RF 1.5V 120mA RF transceiver
LBB1 1V5_DSP 1.5V 170mA DSP in BBP
LBB2 1V5_CORE 1.5V 300mA ARM core in BBP
LINT 2V72_IO 2.72V 135mA Peripherals
LSIM 2V85_SIM 2.85V 22mA SIM card
LSIM2 2V85_IO2 2.85V 200mA Peripherals
LMMC 2V85_CARD 2.85V 135mA SD card
LANA 2V65_ANA 2.65V 220mA Analog block in BBP
LRTC 2V11_RTC 2.11V 0.3mA RTC block & Backup battery
LRF1 2V85_RF 2.85V 250mA RF IC
LRF2 2V7_RF 2.7V 10mA RF IC
LRF3 2V65_BT 2.65V 150mA BT IC(Blue moon)
LUSB 3V1_USB 3.1V 45mA USB I/F
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