The EVQ1918-QE-01A is an evaluation board designed to demonstrate the capabilities of the MPQ1918-AEC1, a half-bridge driver that can be used to drive the enhancement mode gallium nitride (GaN) FETs or low gate threshold voltage N-channel MOSFETs in half bridge or synchronous applications.

The EVQ1918-QE-01A is configured as a buck converter using GaN FETs driven by the MPQ1918-AEC1. It supports open-loop control and can set the output voltage (V_OUT) by adjusting the duty cycle of the pulse-width modulation (PWM) signal.

For simplicity, only a single PWM signal is required; the on-board circuitry generates PWML and PWMH signals with proper dead time (DT). In a real system, the controller must take care of the DT adjustment.

The MPQ1918-AEC1 is available in a FCQFN -14 (3mmx3mm) package with wettable flanks.