AI servers consume significantly more power than traditional IT equipment, primarily due to the use of GPUs and high-performance accelerators. Typical ranges include: • Traditional servers: 300–800 W per server • GPU servers: 2–10 kW per server • AI racks: 20–100+ kW per rackHybrid Si, SiC, and GaN solutions from 3 to 12 kW, and beyond The ever-increasing power demand driven by AI data centers is forcing an expedited evolution of power supply units (PSUs) designs, growing from 800 W to an astounding 12 kW, with projections heading to 3-phases designs. Moreover, the. Yole predicts AI data center server power ratings will jump from 15kW to over 100kW, and the main bus voltage will increase from 400V to 800V to reduce distribution losses. Despite this, rack space and PSU form factors will remain unchanged, pressuring PSU vendors to achieve higher power density. Lite-on advocate single PSU power levels to rise to 5. 5~8 kW in 2025 due to AI server applications.
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