Overview

Features and Benefits

  • 0.9V to 1.65V Input Voltage Range
  • 3.3V ±4% Output Voltage
  • Adjustable Output Voltage (2V to 5.2V)
  • 80% Efficiency (VIN = 1.2V, ILOAD = 20mA)
  • Internal 500mA Synchronous Rectifier
  • 2µA Shutdown Mode (MAX1642)
  • Low-Battery Detector (MAX1643)
  • Ultra-Small, 8-Pin µMAX® Package
  • Power-Fail Output
  • Surface-Mount Components
  • Fully Assembled and Tested

Product Details

The MAX1642 evaluation kit (EV kit) is a step-up switching regulator for one-cell, battery-powered systems. It accepts a positive input between 0.9V and 1.65V and converts it to a 3.3V preset output for currents up to 20mA. The MAX1642 EV kit provides ultra-low quiescent current and high efficiency for maximum battery life. Operation up to 50kHz allows the use of a tiny surface-mount inductor while minimizing interference with sensitive intermediate frequencies in pagers and other RF applications.

This EV kit is a fully assembled and tested surface-mount circuit board. Additional pads on the bottom of the board accommodate the external feedback resistors for setting different output voltages. It can also be used to evaluate the MAX1643.

Applications

  • Pagers
  • Personal Medical Monitors
  • Pointing Devices
  • Remote Controls
  • Single-Cell Battery-Powered Devices