GaN Systems offers 3-kW LLC resonant converter reference design

GaN Systems has released a new reference design for a high density, high efficiency GaN-based 3-kW LLC resonant converter (GS-EVB-LLC-3KW-GS), targeting data center, telecom, and industrial switching mode power supply (SMPS) applications. The full-bridge LLC resonant converter design, integrating the company’s 650 V E-mode transistors, exceeds the 80 PLUS Titanium standard for power supply units, achieving high power density (AC/DC PSU) above 100 W/inch³ and high efficiency of more than 96 percent.

Key features include:

• High density: Up to 146 W/inch³  (including air-forced cooling)
• High efficiency: Peak efficiency >98%
• Small size:  <30-mm height and meets low profile 1U datacenter form factor
• High switching frequency with maximum up to 450 KHz
• Current, short circuit, and over voltage system protections

“In the data center, power density and efficiency metrics are becoming more significant with demands to deliver more power in a smaller footprint and new regulatory policies, including European Union’s “Lot 9” 2023, which focuses on data center infrastructure as related to power supply and energy efficiency requirements,” said GaN Systems in a statement.

In addition, smaller power supplies using GaN deliver more storage and memory in the same rack space, said the company, which meets the industry’s shift “from a dollar per watt to dollar-per-density value where density is a measure of size and power of the power supply.”

The reference design is now available for purchase through GaN Systems’ distributors.