Features and Benefits

  • ±3A Output Current
  • Up to 1MHz Switching Frequency
  • Up to 93% Efficiency
  • Synchronous Rectification for Improved Efficiency
  • Output Voltage: +1.1V to VIN Adjustable
  • +3V to +5.5V Input Voltage Range
  • Less than 1µA Typical IC Shutdown Current
  • Surface-Mount Construction
  • Fully Assembled and Tested

Product Details

The MAX1809 evaluation kit (EV kit) provides a +1.1V output voltage from a +3V to +5.5V input source. It sources and sinks up to 3A of current. The MAX1809 is a step-down switching regulator with an internal synchronous-rectifier that operates up to 1MHz, minimizing external components. The device features a resistor-programmable, fixed off-time current-mode operation for superior load- and line-transient response, and achieves efficiencies up to 93%.


  • Active Termination Buses (MAX1993)
  • DDR Memory Termination (MAX1993)

Applicable Parts

Documentation & Resources