Features and Benefits

  • Step-Up/Down Voltage Conversion
  • 1.8V to 11V Input Range
  • 3.3V or 5V Selectable Output Voltage
  • Adjustable Output Voltage (1.25V to 5.5V)
  • Load Disconnects from Input in Shutdown
  • Up to 300mA Output Current
  • No External FETs Required
  • 0.1µA Typical IC Shutdown Current
  • Low-Battery Comparator
  • 16-Pin QSOP Package (same footprint as 8-pin SO)
  • Surface-Mount Components
  • Fully Assembled and Tested

Product Details

The MAX1672 evaluation kit (EV kit) integrates a step-up switching converter with a linear-regulator output to provide step-up/down voltage conversion. It accepts a 1.8V to 11V input and converts it to a 3.3V or 5V output for currents up to 300mA. The EV kit is optimized for battery applications where the input varies above and below the regulated output voltage. It provides ultra-low quiescent current and high efficiency for maximum battery life. Another benefit of the low-dropout linear post-regulator is that it reduces high-frequency ripple.

The MAX1672 EV kit is a fully assembled and tested surface-mount circuit board. With minimal modification, it can also be used to evaluate other output voltages. Additional pads on the board accommodate external feedback resistors for setting different output voltages.


  • 2-Cell to 4-Cell AA Alkaline Handheld Equipment
  • 3.3V and Other Low-Voltage Systems
  • Battery-Powered Devices with AC Input Adapters
  • Digital Still Cameras
  • Single-Cell, Lithium-Powered Portable Devices

Applicable Parts