Features and Benefits

  • 5V to 20V Input Voltage Range
  • Four Digitally Selectable Operating Voltages (OUT1)
  • Dynamically Selectable Output Voltages 0.7V/1.0V/1.3V/1.5V (OUT1, Adjustable from 0.5V to 2.0V)
  • Fixed 2.5V Output Voltage (OUT2, Adjustable from 0.5V to 2.7V)
  • 6A Output Current (OUT1)
  • 4A Output Current (OUT2)
  • 300kHz Switching Frequency
  • Independent Power-Good Outputs
  • Low-Profile Components
  • Fully Assembled and Tested

Product Details

The MAX1549 evaluation kit (EV kit) demonstrates the MAX1549's standard application circuit. This DC-DC converter steps down high-voltage batteries and/or AC adapters, generating precision low-voltage chipset and RAM power supplies for notebook computers.

The MAX1549 EV kit provides a dynamically adjustable 0.7V to 1.5V output voltage range (OUT1), and a fixed 2.5V output voltage (OUT2) from a 5V to 20V battery input range. It delivers up to a 6A output current for OUT1, and up to a 4A output current for OUT2, with greater than 90% efficiency. The EV kit operates at 300kHz switching frequency and has superior line- and load-transient response.

This EV kit is a fully assembled and tested circuit board. It is capable of evaluating other dynamically adjustable output voltages in the 0.5V to 2.0V range by changing R10-R14. Other fixed output voltages in the 0.5V to 2.7V range can be evaluated by changing R20 and R21.


  • Active Termination Buses
  • CPU Core or VCC Supplies
  • DDR Memory Termination
  • Dynamically Adjustable Chipset Supplies
  • Fixed Chipset/RAM Supplies
  • Notebook Computers
  • Video/GPU Core Supplies

Documentation & Resources