Navitas Semiconductor, the industry leader in gallium nitride (GaN) power ICs and silicon carbide (SiC) technology, has teamed up with Great Wall to power the next generation of AI data centers. Great Wall’s latest 2.5kW ultra-high power density DC-DC converter will integrate Navitas’ advanced GaNSense power ICs, setting a new standard for efficiency, power, and sustainability.

Meeting AI’s Increasing Power Demands

As AI technology advances, data centers must handle greater computing power while maximizing space and reducing energy consumption. To keep up with these demands, the industry is shifting toward 400V independent cabinet architectures, which offer smaller, high-efficiency, and modular power solutions. These innovations help AI data centers accommodate more GPUs, improve overall performance, and support global carbon reduction goals.

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Great Wall has introduced a breakthrough 2.5kW DC-DC converter in a compact 1/4 brick outline, boasting the world’s highest power density of 92.36W/cm³—eight times higher than traditional silicon-based designs. With an industry-leading 97.9% half-load efficiency and a wide input range of 320-420VDC, this cutting-edge solution meets Open Compute Project (OCP) guidelines and is optimized for AI data centers, telecommunications, and industrial applications.

The Role of GaN in Power Efficiency

At the core of this innovation is Navitas’ GaNSense NV6169, a 650V, 45mΩ power IC that delivers 50% more power than previous designs. The low-profile 8x8mm PQFN package enables high-efficiency, high-density power systems.

GaNFast power ICs with GaNSense technology introduce several industry-first features, including:

  • Loss-less current sensing for real-time performance monitoring
  • Ultra-fast short-circuit protection (30ns detect-to-protect speed, 6x faster than discrete solutions)
  • Robust 800V peak rating to withstand transient voltage spikes

Unlike traditional solutions, the NV6169 integrates full GaN gate protection and boasts a 2kV electrostatic discharge (ESD) rating, ensuring enhanced reliability.

Industry Leaders Speak on the Collaboration

“With its faster switching frequency and higher efficiency, GaN is unlocking the next generation of power supplies,” said Michael Zhang, Head of DC Product Line at Great Wall Power. “We are thrilled to collaborate with Navitas to develop the industry’s most advanced ultra-high-power density DC-DC converter. Together, we will continue to push the boundaries of efficiency, reduce energy consumption, and accelerate the transition to low-carbon technology.”

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Charles Zha, SVP & GM of Navitas Asia-Pacific, added, “Navitas is honored to partner with Great Wall Power on this groundbreaking 2.5kW DC-DC converter. Great Wall’s expertise in power solutions, combined with our GaNFast power ICs, creates a powerful synergy. This partnership will drive innovation across AI data centers, telecommunications, and industrial sectors, helping the industry achieve new levels of efficiency and sustainability.”

FAQs

1. Why is 400V-DC power architecture important for AI data centers?

AI workloads require high computing power, which demands efficient and compact power solutions. The 400V-DC architecture reduces power losses, improves space utilization, and enhances system scalability, making it ideal for modern AI data centers.

2. How does GaN technology improve power efficiency?

GaN-based power ICs offer higher switching speeds, lower losses, and compact designs compared to traditional silicon-based solutions. This results in greater power density, reduced energy waste, and enhanced system reliability.

3. What makes Great Wall’s 2.5kW DC-DC converter unique?

This converter delivers the world’s highest power density (92.36W/cm³) in a 1/4 brick size, offering 8x more power output than traditional silicon solutions. With 97.9% efficiency and a wide input range, it’s a game-changer for AI, telecom, and industrial applications.

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