Features and Benefits

  • 2V to 5.5V Input Voltage Range
  • Output Voltage
    • 1.8V Fixed Output Voltage (MAX1921EUT18-T)
    • Adjustable Output Voltage (MAX1920EUT-T)
    • Other Fixed-Output Voltages (MAX1921EUT_ _-T)
  • Output Current
    • Guaranteed 400mA at >2.5V Input Voltage
  • IC Shutdown Current
    • 0.1µA (typ)
  • Surface-Mount Components
  • Fully Assembled and Tested

Product Details

The MAX1921 evaluation kit (EV kit) provides a fixed 1.8V output voltage from a 2V to 5.5V input source and delivers up to 400mA output current. The MAX1921 is a step-down switching regulator with an internal power switch and synchronous rectifier in a tiny SOT23 package.

The MAX1921 EV kit is a fully assembled and tested surface-mount circuit board. The MAX1921 EV kit can also be used to evaluate other fixed-output voltage versions of the MAX1921 or the MAX1920, which is a step-down switching regulator with an adjustable output voltage. Additional pads on the board are provided for external feedback resistors to set different output voltages, 1.25V to VIN.


  • Battery-Powered Applications
  • CDMA Power Amplifier Supply
  • Next-Generation Wireless handsets
  • PDAs, Palmtops, and Handy Terminals

Applicable Parts