General Description

The MAX1760/MAX1760H are high-efficiency, low-noise, step-up DC-DC converters intended for use in battery powered wireless applications. They combine low quiescent supply current (100µA) with a high 1MHz operating frequency. Small external components and tiny 10-pin TDFN and µMAX® packages make this device an excellent choice for small hand-held applications.

Features

♦ Up to 94 Efficiency

♦ 0.7V to 5.5V Input Range

♦ Up to 800mA Output

♦ Fixed 3.3V Output (or Adjustable from 2.5V to 5.5V)

♦ PWM Synchronous-Rectified Topology

♦ Low-Noise, Constant-Frequency Operation (1MHz)

♦ 0.1µA Logic-Controlled Shutdown

♦ Synchronizable Switching Frequency

♦ Adjustable Current Limit

♦ Adjustable Soft-Start

♦ 10-Pin µMAX Package

♦ 10-Pin 3mm x 3mm TDFN Package

Applications

Digital Cordless Phones

PCS Phones

Wireless Handsets

Handheld Instruments

Palmtop Computers

Personal Communicators

Two-Way Pagers