ADP3402ARU PDF File ( Datasheet )

a FEATURES Handles all GSM Baseband Power Management Functions Four LDOs Optimized for Speci c GSM Subsystems Charges Back-Up Capacitor for Real-Time Clock Charge Pump and Logic Level Translators for 3 V and 5 V GSM SIM Modules Thermally Enhanced 6.1 mm 28-Lead TSSOP Package APPLICATIONS GSM, DCS, PCS Handsets TeleMatic Systems ICO, Iridium Terminals GSM Power Management System ADP3402 FUNCTIONAL BLOCK DIAGRAM VBAT ADP3402 DIGITAL LDO VCC RESET PWRONKEY ROWX POWER-UP SEQUENCING AND PROTECTION