ADP3522 - GSM Power Management SystemGSM Power Management System ADP3522FEATURES 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 HandsetsPWRONKEY ROWXFUNCTIONAL BLOCK DIAGRAMVBAT VBAT2 VRTCINPOWER-UP SEQUENCING AND PROTECTION LOGICSIM LDOVSIM SIMVSELDIGITAL CORE LDOVCOREGENERAL DESCRIPTIONPWRONIN ANALOG LDO TCXOEN SIMEN RESCAP MEMORY LDO RTC LDO REF BUFFER VMEM TCXO LDO VANThe ADP3522 is a multifunction power system chip optimized for GSM/GPRS handsets, especially those based on the Analog Devices AD20msp430 system solution with 1.8 V digital baseband processors, such as the AD6525, AD6526, and AD6528. It contains six LDOs, one ……
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