General Description
The MAX8952 high-efficiency DC-to-DC step-down switching regulator delivers up to 2.5A of output current. The device operates from a 2.5V to 5.5V input voltage range, supporting commonly-used battery technologies in handsets. The output voltage is I2C programmable from 0.77V to 1.40V. Remote sense ensures precise DC regulation at the load. Total output error is less than ±1.5% over load, line, and temperature.

Features
♦ 2.5A Guaranteed Output Current
♦ I2C Programmable VOUT (770mV to 1.40V in 10mV Steps)
♦ Initial Accuracy ±0.5% at 1.40V Output
♦ ±1.5% Output Accuracy Over Load, Line, and Temperature (DCR ≤ 38.5mΩ)
♦ Power-Save Mode Increases Light Load Efficiency
♦ Fixed 3.25MHz PWM Switching Frequency
♦ Small 1.0µH Inductor
♦ Synchronizes to 13MHz, 19.2MHz, or 26MHz System Clock When Available
♦ Overvoltage and Overcurrent Protection
♦ Operates from 2.5V to 5.5V Input Supply
♦ Thermal Shutdown Protection
♦ On-Chip FET and Synchronous Rectifier
♦ 400kHz I2C Interface
♦ < 1µA Shutdown Current
♦ 16-Bump, 2mm x 2mm WLP Package

Applications
    Cell Phones and Smartphones
    PDAs and MP3 Players
    Tablet PCs