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.


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