Navitas’ GaN and SiC technologies are set to enhance Nvidia’s 800 V HVDC data center power infrastructure, aligning with the increasing demands for 1 MW IT racks and more.
NVIDIA Partners with Navitas for Revolutionary 800 V HVDC Architecture
TORRANCE, Calif., May 21, 2025 (GLOBE NEWSWIRE) — Navitas Semiconductor (Nasdaq: NVTS), recognized as a leader in next-gen GaNFast™ gallium nitride (GaN) and GeneSiC™ silicon carbide (SiC) power semiconductors, has announced a new partnership with NVIDIA (Nasdaq: NVDA). This collaboration aims to develop groundbreaking 800 V HVDC architecture to support advanced ‘Kyber’ rack-scale systems, optimizing the power requirements for GPUs, including the robust Rubin Ultra, leveraging Navitas’ cutting-edge GaNFast™ and GeneSiC™ technologies.
Advancing Data Center Efficiency with 800 V Architecture
NVIDIA’s innovative 800V DC architecture is designed to establish a high-efficiency, scalable power solution tailored for next-generation AI workloads. This initiative seeks to provide improved reliability and reduce infrastructure complexity associated with traditional systems.
Transition from Traditional Systems
Current data center setups predominantly utilize conventional 54 V in-rack power distribution, typically constrained to a few hundred kilowatts. This method employs bulky copper busbars to transfer low-voltage electricity from power shelves to compute trays. As power needs increase beyond 200 kW, this model faces significant limitations concerning power density and system efficiency.
Meeting the Demand for AI Compute Power
With modern AI data centers demanding gigawatts (GW) of power for complex computational tasks, NVIDIA proposes a direct conversion from 13.8 kV AC grid power to 800 V HVDC at the perimeter of the data center. This will utilize solid-state transformers (SST) and industrial-grade rectifiers to bypass several AC/DC and DC/DC conversion stages, enhancing both efficiency and reliability.
Advantages of Higher Voltage Systems
The shift to an 800 V HVDC system allows for a significant reduction in copper wire thickness—up to 45%—due to minimized I²R losses, providing the ability to deliver the same power with a higher voltage and lower current. A traditional 54V DC system would necessitate over 200 kg of copper to power a 1 MW rack, an unsustainable requirement for burgeoning AI data centers.
Direct Power Supply to IT Racks
The 800 V HVDC architecture ensures that IT racks receive direct power, eliminating the need for extra AC-DC converters. Subsequent voltage transformations will be handled by DC-DC converters to supply GPUs like the Rubin Ultra.
Leading the Way in AI Data Center Solutions
Navitas is recognized for its leadership in AI data center solutions utilizing GaN and SiC technologies. Their GaNSafe™ power ICs integrate essential features such as control, drive, sensing, and critical protection, ensuring remarkable reliability and performance. GaNSafe stands out as the safest GaN on the market, boasting short-circuit protection with a maximum latency of 350 ns, 2 kV ESD protection on all pins, elimination of negative gate drive, and programmable slew rate control—all managed via a straightforward 4-pin design.
Expanding the Portfolio with Medium Voltage Devices
Additionally, Navitas is expanding its offerings with medium voltage (80-120V) GaN devices, optimized specifically for secondary side DC-DC conversion. These devices promise superior speed, efficiency, and a compact footprint, tailored for AI data center power supply units (PSUs) with output ranges of 48V-54V.
Groundbreaking Innovations in SiC Technology
Buoyed by two decades of SiC innovation, GeneSiC uses proprietary ‘trench-assisted planar’ technology that delivers unparalleled performance over varied temperatures. This technology promotes high-speed, efficient operation in high-power applications. G3F SiC MOSFETs, for instance, offer high-efficiency and performance enhancements, achieving up to a 25°C reduction in case temperature and extending the product lifespan up to three times compared to competitors.
High-Powered Solutions Tailored for Future Needs
Navitas boasts the most comprehensive voltage range in the industry, covering everything from 650 V to ultra-high voltages of 2.3 kV to 6.5 kV, actively participating in initiatives such as MW energy storage and grid-tied inverters with the Department of Energy (DoE).
Recent Milestones: Power Supply Innovations
In August 2023, Navitas launched a high-speed, high-efficiency 3.2 kW CRPS that is 40% smaller than leading legacy silicon solutions. This was shortly followed by the breakthrough 4.5 kW CRPS, boasting an impressive power density of 137 W/in³ and efficiency exceeding 97%. In November 2024, they unveiled the world’s first 8.5 kW AI data center power supply with 98% efficiency, aligned with Open Compute Project (OCP) and Open Rack v3 (ORv3) specifications.
Innovative Digital Control Techniques
Navitas has also developed IntelliWeave, an innovative patented digital control technique. When paired with their high-power GaNSafe and Gen 3-Fast SiC MOSFETs, this technology achieves Power Factor Control (PFC) peak efficiencies of 99.3%, while reducing power losses by 30% compared to existing solutions. This significant advancement was showcased at the recent Computex exhibition in Taiwan during the Navitas ‘AI Tech Night’ on May 21st.
Acknowledgment and Future Outlook
“We are proud to be selected by NVIDIA to collaborate on their 800 HVDC architecture initiative. Our latest innovations in high-power GaN and SiC technologies have introduced world-first solutions and created significant market disruptions in areas like AI data centers and electric vehicles,” stated Gene Sheridan, CEO and co-founder of Navitas. “Our comprehensive portfolio enables support for NVIDIA’s 800V HVDC infrastructure from grid to GPU. We are grateful for NVIDIA’s recognition of our technology and commitment to advancing the next generation of data center power delivery.”
Efficiency Improvements and Cost Reductions
NVIDIA’s 800V HVDC architecture is expected to enhance end-to-end power efficiency by up to 5%, decrease maintenance costs by 70% due to fewer PSU failures, and lower cooling expenses by using a direct HVDC connection to IT and compute racks.
For insights into NVIDIA’s technical blog, click here. For further information regarding Navitas’ AI roadmap, visit their website or reach out at info@navitassemi.com.
About Navitas Semiconductor
Navitas Semiconductor (Nasdaq: NVTS) stands as the sole pure-play, next-generation power semiconductor firm, celebrating a decade of innovation since its inception in 2014. GaNFast™ power ICs amalgamate gallium nitride (GaN) power with integral control, sensing, and protection solutions aimed at delivering faster charging, enhanced power density, and superior energy savings. Complementary GeneSiC™ devices are tailored for high-power, high-voltage, and high-reliability silicon carbide applications. Key focus sectors include AI data centers, electric vehicles, solar energy, energy storage, industrial applications, and consumer products. Navitas carries over 300 patents, offering the industry’s sole 20-year warranty on GaNFast solutions, and was the first semiconductor company to achieve CarbonNeutral® certification.
Navitas Semiconductor, GaNFast, GaNSafe, GeneSiC, and the Navitas logo are trademarks or registered trademarks of Navitas Semiconductor Limited and its affiliates. Other brands, product names, and marks may be trademarks or registered trademarks of their respective owners.
Contact Information
Llew Vaughan-Edmunds, Sr Director, Product Management & Marketing
info@navitassemi.com
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