170V eGaN FET Offers Best-in-Class Synchronous Rectification


EPC introduces 170 V, eGaN FET, offering designers a device that is smaller, more efficient, more reliable, and lower cost than currently available devices

Efficient Power Conversion Corporation advances the performance capability while lowering the cost of off-the-shelf gallium nitride transistors with the introduction of the EPC2059 (6.8 mΩ, 170 V) eGaN FET.  This device is the latest in a family of 100 V – 200 V solutions suitable for a wide-range of power levels and price points. They are designed to meet the increasing demands of 48 V – 56 V server and data center products as well as an array of consumer power supply applications for high end computing, including gaming PCs, LCD/LED TVs, and LED lighting.

The EPC2059 is ideal for DC-DC secondary-side synchronous rectification in AC/DC adaptors, fast chargers, and power supplies with power ranges between 100 W and 6 kW.  The performance advantage of gallium nitride devices helps designers achieve the demanding efficiency requirements for 80 Plus Titanium power supplies, while providing smaller, faster, cooler, and lighter systems with lower system costs then currently available solutions.

According to Alex Lidow, EPC’s co-founder and CEO, “There are very significant performance advantages gained from using GaN in the secondary-side synchronous rectification socket of AC/DC adaptors. In a 400 V to 48 V conversion, switching at 1 MHz, GaN has shown to have one-sixth the losses and run 10 degrees cooler than a silicon MOSFET with equivalent on resistance.  This enables designers to meet the latest stringent energy efficiency standards for high-end computing, where growth is exploding for multiple applications, such as artificial intelligence (AI), cloud computing, and high-end gaming systems.”

Development Board

The EPC9098 development board is a 170 V maximum device voltage, 25 A maximum output current, half bridge with onboard gate drives, featuring the EPC2059 eGaN FETs. This 2” x 2” (50.8 mm x 50.8 mm) board is designed for optimal switching performance and contains all critical components for easy evaluation of the EPC2059.

For more information, visit EPC's web site.