Infineon Technologies said Monday it is acquiring C2i Semiconductors, a two-year-old Bengaluru startup that builds power-delivery chips for AI data centers, in a deal aimed at solving one of the least glamorous but most pressing engineering problems in the AI buildout: keeping GPUs fed with enough clean, stable power without melting the board.
Financial terms of the acquisition were not disclosed. The German semiconductor maker said the deal, first detailed in a company announcement, is expected to close in the third quarter of 2026, subject to customary approvals.
C2i — short for control, conversion and intelligence — was founded in 2024 by a group of former Texas Instruments power-systems engineers. The startup develops software-defined multiphase controllers and "smart power stages," components that manage how electricity is converted and distributed to the processors inside AI servers. Modern AI accelerator boards can pack dozens of individual power stages around a single GPU — some configurations run into the hundreds across a two-GPU board — and getting that delivery wrong wastes energy and generates heat that data centers already struggle to remove. The company had raised a Series A round of roughly $15 million, led by Peak XV Partners, earlier this year.
Power, not compute, becomes the bottleneck
The acquisition reflects a shift in where AI infrastructure spending is concentrated. As GPU clusters have grown denser and more power-hungry, chipmakers and hyperscalers alike have identified power delivery — not raw compute — as an increasingly binding constraint on how much AI hardware a data center can actually run. Infineon, which already sells power semiconductors into data centers, framed the deal as a way to move from discrete components toward more integrated, "software-defined" power systems that can be tuned dynamically as workloads shift.
Adam White, president of Infineon's Power & Sensor Systems division, said the acquisition would strengthen the company's position in AI data center power management. C2i chief executive Ram Anant said joining Infineon would give the startup access to manufacturing scale and an established global customer base to accelerate deployment of its software-defined power architecture — resources that are difficult for an early-stage fabless startup to build on its own.
The deal also expands Infineon's engineering footprint in India, where the company already employs roughly 2,800 people. Infineon has increasingly framed India as a strategic hub within its global research and development network, and folding in a Bengaluru-based team gives it a concentrated pocket of expertise in digital power design to build around.
The purchase is a comparatively small transaction by Infineon's standards, but it continues a pattern among established chipmakers of acquiring narrowly focused startups to fill specific gaps in the AI hardware stack rather than competing to build everything in-house. With data center power budgets now a frequent talking point among cloud operators planning next-generation AI clusters, the C2i deal is a bet that power management chips will be as commercially contested as the GPUs they support.
