Analog Devices buys Empower Semiconductor for $1.5B to chase AI power crunch

A power bottleneck becomes a $1.5 billion problem

Analog Devices has agreed to buy Milpitas-based Empower Semiconductor for $1.5 billion in cash, snapping up an AI-focused power-chip startup as hyperscalers run into energy as the gating constraint on next-generation compute.prnewswire The all-cash deal is expected to close in the second half of 2026, subject to Hart-Scott-Rodino review, with Empower CEO Tim Phillips staying on to lead integrated voltage regulator (IVR) work inside ADI.prnewswire Reuters and Bloomberg first reported the talks a week before the definitive agreement landed.reuters

Why voltage regulators are suddenly strategic

Empower's pitch is that conventional power-management ICs — built from bulky inductors and multi-layer ceramic capacitors sitting beside the processor on a PCB — can no longer keep up with the current swings and density demands of AI accelerators.eetimes Its IVRs collapse those discrete components into a configurable die small enough to mount on the underside of a processor substrate, shrinking the power-delivery footprint roughly three to five times versus a standard inductor-based design.eetimes ADI says putting power conversion closer to the compute die shortens the delivery path and lifts efficiency, which it frames as a "step-change" needed to scale AI systems "from grid to core."prnewswire

The catch for ADI is that, despite owning Linear Technology and Maxim Integrated, it had no credible vertical power-on-package architecture for GPUs and custom AI silicon — a segment where Infineon, Monolithic Power Systems and Vicor are already winning hyperscaler sockets.eetimes Buying Empower, whose silicon capacitors are in production and whose IVRs are in joint development with "leading hyperscalers and AI silicon providers," is a decision to acquire that roadmap rather than build it.prnewswire

A bet bolted onto a record quarter

The deal lands the same week ADI reported fiscal Q2 2026 revenue of $3.62 billion, up 37% year-over-year, with adjusted EPS of $3.09 and adjusted operating margin of 49%.futurumgroup Communications revenue jumped 79%, and management said data centers now account for more than three-quarters of that segment, with growth split roughly evenly between power and optical portfolios.futurumgroup ADI guided Q3 revenue to $3.9 billion and told investors that meaningful Empower-related revenue won't show up until fiscal 2027.futurumgroup

For ADI, the price tag — about 14% of FY25 revenue — is a bet that power density, not transistor count, becomes the binding constraint on AI buildouts.prnewswire Empower's customer base of hyperscalers and merchant AI-chip vendors gives ADI a direct seat at the table where Nvidia-class accelerators are designed.datacenterdynamics Whether $1.5 billion proves cheap or rich depends on how quickly co-packaged voltage regulation moves from design wins to volume shipments inside the next generation of AI servers.eetimes