Navitas and Greatwall Power Unveil Next-Gen 400V-DC Power Ecosystem for AI Infrastructure

Navitas Semiconductor Collaborates with GreatWall Power to Revolutionize AI Data Center Infrastructure with GaN Innovation

Navitas Semiconductor, a pioneer in gallium nitride (GaN) and silicon carbide (SiC) technologies, has revealed that its advanced GaNSense™ power integrated circuits (ICs) will drive GreatWall Power’s groundbreaking 2.5 kW DC-DC converter, engineered for ultra-high power density in AI data center applications.

Developed within a compact 1/4-brick form factor, GreatWall’s converter achieves an unprecedented power density of 92.36 W/cm³—surpassing conventional silicon-based solutions by up to 8x. This innovation addresses the escalating demands for energy efficiency and space optimization in next-generation computing infrastructures.

The converter operates with a peak efficiency of 97.9% under half-load conditions and supports a wide input voltage range of 320–420 VDC, aligning with stringent Open Compute Project (OCP) efficiency standards. Its versatility extends to telecommunications, industrial systems, and AI-driven data centers requiring robust power management.

At the heart of this advancement lies Navitas’ NV6169 GaNSense™ IC, a 650 V, 45 mΩ GaN device housed in an industry-standard 8 x 8 mm PQFN package. This third-generation solution delivers 50% higher power density compared to previous iterations while minimizing inductance for enhanced thermal performance.

Key technological breakthroughs include:

• Lossless Current Sensing: Enables precise monitoring without energy waste.

• Ultra-Fast Protection: 30 ns “detect-to-protect” response—6x quicker than discrete alternatives.

• Enhanced Durability: 800 V transient surge rating and 2 kV ESD protection ensure reliability in demanding environments.

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“GaN’s superior switching frequency and efficiency are redefining power electronics,” stated Michael Zhang, Director of DC Product Line at GreatWall Power. “Our partnership with Navitas, a global GaN leader, has enabled this milestone in power density and efficiency, setting a new benchmark for AI infrastructure.”

The collaboration underscores the transformative potential of GaN technology in meeting the power challenges of AI, 5G, and industrial automation, while driving compliance with global energy regulations.