GENERAL DESCRIPTION

The ADP3510 is a multifunction power system chip optimized for CDMA handset power management. It contains six specialized LDOs, one to power each of the critical CDMA subblocks. Sophisticated controls are available for power-up during battery charging, keypad interface, and RTC alarm. If a Li-Ion battery is being charged, the charge circuit maintains low current charging during the initial charge phase and provides an end of charge (EOC) signal when the cell has been fully charged.

The ADP3510 is specified over the temperature range of –20°C to +85°C and is available in a narrow body TSSOP 28-Lead package.

FEATURES

Handles All CDMA Baseband Power Management

Six LDOs Optimized for Specific CDMA Subsystems

Li-Ion and NiMH Battery Charge Function

Ambient Temperature: -20°C to +85°C

TSSOP 28-Lead Package

Optimized for LSI Logic Baseband Chipset

APPLICATIONS

CDMA Handsets