Features and Benefits

  • 6.5V to 60V Input-Voltage Range for the Step-Down Converter
  • 5V Step-Down Converter Output Voltage, Up To 150mA Continuous Load Current
  • 3.3V Linear Regulator Output Voltage, Up To 50mA Continuous Load Current
  • Peak Efficiency of 90% for the Step-Down Converter
  • 70µA No-Load Supply Current
  • 200kHz Switching Frequency
  • Internal Soft-Start
  • EN/UVLO Input, Resistor-Programmable UVLO Threshold
  • MODE/SYNC Pin to Select PWM or PFM Mode
  • Open-Drain active-low RESET Output to Monitor Dual Outputs
  • External Frequency Synchronization
  • Overcurrent and Overtemperature Protection
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX17671F evaluation kit (EV kit) is a fully assembled and tested circuit board that demonstrates the performance of the MAX17671F dual-output regulator integrating a high-efficiency, high voltage, fixed output voltage, synchronous step-down DC-DC converter, and a high-PSRR, low-noise, fixed-output linear regulator. The EV kit is designed for a high efficiency solution, and generates a 5V step-down converter output voltage and a fixed 3.3V linear regulator output voltage at load currents up to 150mA and 50mA, respectively. When the linear regulator output is loaded, the step-down converter output current is reduced by ILDO, where ILDO is the load current on the linear regulator output. The EV kit draws only 70μA supply current under no-load conditions. The step-down converter is programmed to a switching frequency of 200kHz and delivers a peak efficiency of 90% with the supplied components. The dual-output device is simple to use and easily configurable with minimal external components. The EV kit features adjustable input undervoltage lockout, open-drain active-low RESET signal, hysteretic peak current-limit protection and external frequency synchronization.


  • Battery-Powered Equipment
  • High-Voltage Linear Regulator Replacement
  • HVAC and Building Control
  • Industrial Sensors and Process Control


Pricing displayed is based on 1-piece.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.