General Description
The MAX1763 is a high-efficiency, low-noise, step-up DC-DC converter intended for use in battery-powered wireless applications. This device maintains exceptionally low quiescent supply current (110µA) despite its high 1MHz operating frequency. Small external components and a tiny package make this device an excellent choice for small hand-held applications that require the longest possible battery life.

Features
♦ Up to 94% Efficiency
♦ +0.7V to +5.5V Input Voltage Range
♦ 1.1V Guaranteed Startup Input Voltage
♦ Up to 1.5A Output
♦ Fixed 3.3V Output or Adjustable (2.5V to 5.5V)
♦ 1MHz PWM Synchronous-Rectified Topology
♦ 1µA Logic-Controlled Shutdown
♦ Analog Gain Block for Linear-Regulator or Low
   Battery Comparator
♦ Adjustable Current Limit and Soft-Start
♦ 1.5W TSSOP Package Available

Applications
   Digital Cordless Phones
   PCS Phones
   Wireless Handsets
   Hand-Held Instruments
   Palmtop Computers
   Personal Communicators