The board combines four 50V-rated EPC2057 GaN FETs with the Analog Devices LTC7890, a dual-phase buck controller, to deliver output voltages of 12V, 16V, or 20V from an input range of 20V to 36V. In ...

W GaN buck converter with no heatsink needed, which is ideal for USB-PD, laptops, and portable power applications.

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This letter reports a monolithic high-efficiency buck converter using all depletion-mode (d-mode) gallium nitride (GaN) HEMTs which integrates a dead-time generating driving circuit and a power stage.

To eliminate the inherent dead zone of the buck power factor correction (PFC) converter, integrated buck PFC converters, such as buck–flyback PFC converter and buck–buck/boost PFC converter, have been ...