Can AI infrastructure overcome power limits? This new architecture focuses on efficient distribution and scalable performance across modern AI data centres.
STMicroelectronics has expanded its 800 VDC power conversion portfolio with new 12V and 6V architectures, aimed at improving energy efficiency, reducing conversion losses, and supporting scalable power delivery in AI data centers. The additions complement its earlier 800 VDC to 50V solution, enabling a more complete approach to high-voltage distribution across next-generation compute infrastructure.
For system designers and hyperscale operators, the expanded portfolio offers advantages in flexibility and optimization across different AI server configurations. The solutions support varied power delivery topologies required for training clusters, inference workloads, and high-density GPU systems, where rack design, thermal constraints, and compute density dictate voltage requirements. By enabling multiple intermediate bus options, the architecture allows better alignment with evolving server designs while simplifying system integration and improving overall efficiency.
The 800 VDC to 12V architecture enables direct high-efficiency conversion from rack-level power, eliminating the need for traditional intermediate stages and reducing system-level losses. The 800 VDC to 6V approach allows power delivery to move closer to GPUs, minimizing resistive losses, reducing copper usage, and improving transient response under dynamic workloads. Together, these approaches help optimize performance in increasingly dense AI environments.
The solutions are built using a combination of silicon, SiC, and GaN power technologies, alongside analog and mixed-signal components and microcontrollers. Additional features include high-density power delivery boards designed to exceed the efficiency of conventional multi-stage architectures, as well as support for reduced conversion steps and improved system-level performance.
Marco Cassis, President, Analog, Power & Discrete, MEMS and Sensors Group Head of STMicroelectronics says, “With these new converters for 800 VDC power distribution, ST brings a complete set of solutions to support the deployment of gigawatt-scale compute infrastructure with more efficient, scalable, and sustainable power architectures.”
Click here for the official announcement.
