Features and Benefits

  • PA Step-Down Converter
    • 25µs (typ) Settling Time for 0.4V to 3.2V Output-Voltage Change
    • Dynamic Output-Voltage Setting from 0.4V to VIN
    • 85mΩ PFET and 100% Duty Cycle for Low Dropout
    • 2MHz Switching Frequency
    • Low Output-Voltage Ripple
    • 2% Output-Voltage Accuracy Over Load, Line, and Temperature
    • Tiny External Components
  • 2.5A Output-Current Capability
  • Simple Logic On/Off Control
  • Low 0.1µA Shutdown Current
  • 2.7V to 5.5V Supply Voltage Range
  • Thermal-Overload Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX8989 evaluation kit (EV kit) is a fully assembled and tested circuit for evaluating the MAX8989 step-down converter with linear bypass regulator. The EV kit operates from a 2.7V to 5.5V power supply or battery. The output regulates to twice the voltage at REFIN (0.2V to 1.7V) and provides up to 2.5A drive capability.


  • LTE, WCDMA, GSM, and EDGE Cell Phones/Smartphones

Applicable Parts

Documentation & Resources