FEATURES
Handles all GSM Baseband Power Management 6 LDOs Optimized for Specific GSM Subsystems Li-Ion Battery Charge Function Optimized for the AD20msp430 Baseband Chipset Reduced Package Size: 5 mm ؋ 5 mm LFCSP-32 APPLICATIONS
GSM/GPRS Handsets PWRONKEY ROWX FUNCTIONAL BLOCK DIAGRAM VBAT VBAT2 VRTCIN POWER-UP SEQUENCING AND PROTECTION LOGIC SIM LDO VSIM SIMVSEL DIGITAL CORE LDO VCORE GENERAL DESCRIPTION
PWRONIN ANALOG LDO TCXOEN SIMEN RESCAP MEMORY LDO RTC LDO REF BUFFER VMEM TCXO LDO VAN Sophisticated controls are available for powerup during battery charging, keypad interface, and RTC alarm. This product also meets the market trend of reduced size with a new LFCSP package. Its footprint is only 5 mm ϫ 5 mm and yet offers excellent thermal performance due to the exposed die attached paddle. The ADP3522 is specified over the temperature range of –20°C to +85°C. VTCXO VRTC REFOUT RESET CHRDET EOC CHGEN BATSNS ISENSE GATEIN CHRIN GATEDR AGND BATTERY CHARGE CONTROLLER BATTERY VOLTAGE DIVIDER MVBAT DGND ADP3522 REV.
Analog Devices
