General Description

The MAX710/MAX711 integrate a step-up DC-DC converter with a linear regulator to provide step-up/down voltage conversion. They are optimized for battery applications where the input varies above and below the regulated output voltage. They have an input range from +1.8V to +11V. Typical efficiency when boosting battery inputs is 85.

Features

♦ Step-Up/Down Voltage Conversion

♦ +1.8V to +11V Input Range

♦ Output: 5V/250mA at VIN = 1.8V 5V/500mA at VIN = 3.6V

♦ No External FETs Required

♦ Load Disconnected from Input in Shutdown

♦ Battery Drain: 200µA No-Load (VIN = 4V) 7µA in Standby 0.2µA when Off

♦ Low-Noise and High-Efficiency Modes

Applications

    Single-Cell, Lithium-Powered Portable Devices

    Digital Cameras

    2- to 4-Cell AA Alkaline Hand-Held Equipment

    3.3V and Other Low-Voltage Systems

    2-, 3-, and 4-Cell Battery-Powered Equipment

    Battery-Powered Devices with AC Input Adapters