ST GSM Power Management Data S...

EM0702_datasheetSTwEM5
GSM/GPRS Energy Management
PRELIMINARY DATA

■ 1 Low Dropout (LDO) regulator for digital baseband core (0.55V to 2.65V / up to 155mA) ■ 1 Low Dropout (LDO) regulator for audio (2.8V / 60mA)

■ 1 Low Dropout (LDO) regulator for LCD display (2.87V / 4mA) ■ 1 regulator for digital baseband I/Os (1.88V / 40mA) ■ 1 regulator for peripheral devices (1.88V & 100mA)

■ SIM card supply and level shifters (1.8V / 3V) ■ PWM charge batteries control for

■ Programmable power supply alarm

■ 10-bit ADC for battery monitoring ■ Accessory presence detection ■ Power-on-reset ■ SPI bus interface

D N RA A FT L U SE
NiMH, Li-Ion

Order Code

various voltage levels for the complete chipset, display and SIM card. It also integrates the battery management and control circuitry. A 10-bit Analog to Digita