Overview of Renesas' New Low-Voltage GaN Portfolio

Renesas Electronics has announced a significant expansion of its Gallium Nitride (GaN) product lineup, venturing into the low-voltage domain. On October 8, 2026, the global semiconductor supplier introduced the industry's first 100V enhancement-mode (E-mode) GaN discrete power transistor series. Targeted at high-power-density applications such as AI data centers, humanoid robots, and industrial motor drives, this new portfolio promises ultra-high-speed switching and enhanced thermal performance.

Technical Specifications and Performance Metrics

The newly launched series includes specific models like the RTP100E005G1FL, RTP100E2P6G1FL, RTP100E1P8G1FL-DSC, and RTP100E1P2G1FL-DSC. These low-voltage GaN FETs deliver industry-leading figure-of-merit (FOM) performance. Compared to similar GaN devices, the hard-switching FOM is reduced by up to 35%, while the soft-switching FOM sees a reduction of up to 63%. Built on an enhanced E-mode GaN technology platform, the transistors feature ultra-high-speed switching capabilities. By minimizing voltage and current overlap through low total gate charge (Qg) and low output charge (Qoss), they drastically reduce energy loss per switching cycle. Furthermore, the devices exhibit zero reverse recovery (Qrr=0), eliminating associated energy losses and immediately boosting switching efficiency.

Market Context: The Shift to 800VDC and 48V Architectures

The timing of this release aligns with a critical transition in power infrastructure. Current data center power converters typically operate at switching frequencies in the hundreds of kilohertz. However, as AI servers and industrial infrastructure migrate toward 800VDC power distribution and 48V bus architectures, many conversion stages are advancing to megahertz-level switching frequencies. This shift aims to shrink magnetic component sizes, elevate power density, and improve overall efficiency. Adopting low-voltage GaN within an 800V high-voltage direct current (HVDC) power architecture simplifies power conversion design, significantly reducing passive component sizes and lowering switching losses and thermal requirements.

Implications for AI Data Centers and Robotics

For AI data centers and robotics, the transition to these new architectures means higher efficiency, reduced thermal management requirements, and lower energy and BOM costs. Depending on the specific application and power conversion architecture, the low-voltage GaN devices can reduce switching losses by 40% to 70%, achieving up to double the power density at the system level. Key benefits include:

  • Efficiency improvement of 1% to 3% compared to silicon-based designs, with Qrr losses eliminated.
  • Switching losses drastically reduced by 40% to 70%.
  • Power density doubled by reducing switching energy per cycle and supporting high-frequency operation.
  • Optimized thermal management reducing fan and active cooling requirements, lowering system complexity.

Design Flexibility and Silicon-Compatible Packaging

A major hurdle in adopting wide-bandgap semiconductors is the need for complete PCB redesigns. Renesas addresses this by offering the new GaN FETs in standard MOSFET-compatible packages, including bottom-cooled and double-sided cooling configurations. This allows customers to rapidly migrate from silicon MOSFET layouts to GaN solutions without substantial PCB redesigns. The diverse packaging options, combined with a wide range of RDS(on) from 5mΩ to 1.2mΩ, provide designers with the flexibility to scale across different power levels for synchronous rectification, multi-phase buck conversion, and motor drives. Akhil Nair, Senior Director of Low-Voltage GaN at Renesas, emphasized that this series lowers the barrier for customers transitioning from existing silicon designs while delivering the expected efficiency and power density.

Future Outlook and Industry Impact

The new low-voltage GaN power transistors are currently available alongside evaluation boards. To accelerate time-to-market, these FETs integrate seamlessly into Renesas Winning Combinations, which include validated system architectures like the 6kW 800V to 48V DCX LLC and industrial DC servo platforms. With over 400 winning combinations in its portfolio, Renesas continues to drive power electronics innovation. By shipping over 4 billion devices annually, Renesas is well-positioned to support the escalating power demands of AI, IoT, and industrial applications, ensuring a smarter and more sustainable technological future.