Onsemi promotes 800 VDC power architecture for future AI infrastructure

onsemi’s push for 800V DC architecture is a preemptive strike against the power delivery bottleneck caused by soaring AI compute density. Technically, it will force upstream GaN and SiC power devices to evolve faster and compel redesigns across liquid cooling, power distribution units, and even server motherboards—triggering a full-stack efficiency overhaul from chip to rack. On compliance, emerging EU/US regulations targeting data center PUE will favor high-voltage DC for lower conversion loss, yet raise entry barriers for smaller players and concentrate supply chain risk. Competitors like Infineon and STMicroelectronics will likely accelerate their own 800V rollouts and lock in hyperscalers to build ecosystem moats. Over the next 12–24 months, ‘power equals performance’ will become the new paradigm: control the efficient power chain, and you control AI infrastructure dominance.