Features and Benefits

  • 17V to 36V Input Voltage Range
  • ±7V, 100mA or ±5V, 50mA Continuous Current
  • EN/UVLO Input
  • 200kHz Switching Frequency
  • 87.5% Peak Efficiency
  • Overcurrent Protection
  • No Optocoupler
  • Delivers up to 1.4W Output Power
  • Overtemperature Protection
  • Proven PCB Layout

Product Details

The MAX17681EVKITB is a fully assembled and tested circuit board that demonstrates the performance of the MAX17681 high-efficiency, iso-buck DC-DC converter. The EV kit operates over a wide input-voltage range of 17V to 36V and uses primary-side feedback to regulate the output voltage. The EV kit has two output configurations. In configuration one the output is programmed to ±7V@100mA, with ±8% output voltage regulation. The second configuration uses a post regulator, MAX17651 to produce ±5V@50mA with < ±3% regulation.

The EV kit comes installed with the MAX17681 in a 10-pin (3mm x 2mm) TDFN package and MAX17651 in a 6-lead TSOT package.


  • Floating Power Supply Generation
  • Isolated Fieldbus Interfaces
  • Isolated Power Supplies in Medical Equipment
  • PLC I/O Modules
  • Smart Meters

Applicable Parts