800V power architecture for AI data centers

Conviction: 72% · Horizon: 3Y · 2026-04-22
800V AI racks create a new growth lane for power semiconductor suppliers

Wider adoption of 800VDC architecture in AI data centers should increase demand for high-efficiency power conversion, GaN, silicon carbide, intermediate bus converters, and related power-management content.

Instrument Side Target Reason
STM Long STMicroelectronics offers direct exposure to higher power-semiconductor content per AI data-center gigawatt, while its valuation leaves room for upside if projected earnings growth materializes.
TXN Long Texas Instruments combines exposure to 800V power platforms with a broader analog franchise, giving investors a lower-risk way to participate in AI infrastructure electrification.
IFNNY Long Infineon has scale, leadership in power semiconductors, and rising AI revenue targets, making it a defensive beneficiary of higher-efficiency data-center power systems.
Pure-play 800V exposure carries higher valuation risk

Specialist power-conversion names may benefit strongly from AI rack upgrades, but rapid share-price gains and elevated sales multiples can already price in much of the expected market expansion.

Instrument Side Target Reason
NVTS Watch Navitas has strong thematic exposure to GaN-based AI rack power delivery, but current losses and a very high price-to-sales multiple make the risk-reward sensitive to execution.
VICR Watch Vicor is strategically positioned in high-density power conversion, but prior share-price appreciation reduces the margin of safety unless growth accelerates further.

Themes

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