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FEATURES 11 LDOs Optimized for Specific CDMA Subsystems 4 Backup LDOs for Standby Mode Operation Ultra Low Standby Supply Current High Accuracy Battery Charger (0.
7%) 3 Li-Ion Battery Charge Modes 5 mA Precharge Low Current Charge Full Current Charge Integrated RTC Ambient Temperature: –30؇C to +85؇ C 64-Lead 7 mm ؋ 7 mm ؋ 1 mm TQFP Package APPLICATIONS CDMA/CDMA2000/PCS Handsets
CDMA Power Management System ADP3502
FUNCTIONAL BLOCK DIAGRAM
LOGIC BLOCK POWER ON DELAY 10ms ANALOG BLOCK BATTERY CHARGER
KEYPAD I/F
INTERRUPT CONTROL LDO CONTROL
REFERENCE
GPIO
LDO1 TO LDO11
SERIAL I/F
RESET
VOLTAGE DETECTOR
32kHz OUTPUT CONTROL
RTC COUNTER
GENERAL DESCRIPTION
RESET OUTPUT
ADP3502
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