Who makes board-level power for AI data centers
The voltage regulator modules and point-of-load converters that step rack-level DC power down to the precise, high-current voltages each GPU and chip needs at the board.
This part sits between the rack's power shelves (4.12) and busbar (4.15) on one side and the GPU or CPU die on the other: VRMs and power stages take the incoming rail and regulate it down, at high current and tight tolerance, to the voltage a chip actually consumes. GPU-class VRMs are a harder engineering problem than a CPU's because GPU power draw is both higher and more transient — regulation has to respond fast enough that a sudden compute load doesn't cause the voltage to sag or overshoot. That has pulled wide-bandgap semiconductors (4.08a) into board-level power delivery as GaN and SiC devices allow smaller, more efficient power stages at the currents modern GPUs need. For investors, this tier is defined by a handful of suppliers with the analog and power-electronics design expertise to hit these specs reliably, and by how tightly a given VRM design is qualified against a specific GPU generation's transient response profile — a qualification cycle that resets with every new chip generation and tends to favor incumbents with an existing track record on the previous one.
AI delta: GPU power draw is both higher and far more transient than CPU power draw, which pushes VRM design toward faster response and higher current density than board-level power delivery has historically needed.
Companies on this part (12)
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| Alpha & Omega | manufacturer | public | AOSL | 21.91 USD | -1.7% | inferred | |
| Analog Devices | manufacturer | public | ADI | 391 USD | +1.8% | inferred | |
| Delta Electronics | manufacturer | public | 2308.TW | 1560 TWD | -3.4% | disclosed | · source |
| Infineon | manufacturer | public | IFX.DE | 48.67 EUR | -2.5% | disclosed | · source |
| Monolithic Power Systems | manufacturer | public | MPWR | 1140 USD | -0.9% | inferred | leading GPU VRM supplier |
| onsemi | manufacturer | public | ON | 72.25 USD | -1.2% | inferred | |
| Renesas | manufacturer | public | 6723.T | 2887 JPY | -0.7% | disclosed | · source |
| Rohm | manufacturer | public | 6963.T | 3732 JPY | -1.0% | disclosed | · source |
| STMicroelectronics | manufacturer | public | STM | 44.02 USD | +0.4% | inferred | |
| Texas Instruments | manufacturer | public | TXN | 285 USD | +2.8% | disclosed | · source |
| Vicor | manufacturer | public | VICR | 176 USD | -2.2% | disclosed | vertical power delivery · source |
| Empower | manufacturer | private | inferred |
GaN and SiC 4.08a
| Company | Role | Ownership | Ticker | Price | 1d | Confidence | Note |
|---|---|---|---|---|---|---|---|
| Coherent | manufacturer | public | COHR | 209 USD | +2.3% | inferred | SiC substrates |
| Infineon | manufacturer | public | IFX.DE | 48.67 EUR | -2.5% | inferred | |
| Navitas | manufacturer | public | NVTS | 8.38 USD | -0.7% | inferred | |
| Wolfspeed | manufacturer | public | WOLF | 22.93 USD | +2.6% | inferred | post-Ch.11 relisting; verify |
| EPC | manufacturer | private | inferred |
Who competes here
The same table read the other way: every company above competes for board-level power: VRMs, power stages, PoL, power semis sockets. Confidence tags matter — an inferred placement is a lead, not a confirmed rivalry.
Seen in real machines
board-level power: VRMs, power stages, PoL, power semis is named in 1 of the rack teardowns and supercomputer breakdowns on this site. Each line below is a piece of that machine. The companies shown are the ones named on that line, not necessarily the maker of this part.
- Nvidia GB300 NVL72 · rack teardown
Nearby parts
- Children: GaN and SiC
- Previous in layer: Board-level connectors & sockets
- Next in layer: Passives
- Layer: Layer 4 — Servers, racks & integration
From the blog
Latest feed
- [AI Infrastructure Insight] How AI infrastructure will be designed for the future — newsroom:sk-hynix, 2026-10-22Effective real-world AI application requires improvements across faster compute, wider memory bandwidth, higher-performance networking, better storage, and more stable power infrastructure.
- AI servers drive TVS and ESD demand for Yea Shin Tech — DigiTimes, 2026-10-20AI server demand is increasing the need for transient voltage suppressors (TVS) and ESD protection components, and Yea Shin Technology plans to increase the share of 6-inch wafers in its capacity for these products.
- Data Center Power a Prominent Highlight of OCP 2026 — EE Times, 2026-10-16The OCP Summit highlighted key components related to data center power, including power delivery boards, PSU designs, hot-swap controllers, and telemetry.
- Vietnam's FPT courts Toyota Tsusho unit to sell its power chips in Southeast Asia, India — DigiTimes, 2026-10-15FPT is establishing a distribution partnership with Toyota Tsusho to sell its in-house power semiconductors in Southeast Asia and India.
- Broadcom executive says chipmakers must tackle packaging, power limits together — DigiTimes, 2026-10-14A Broadcom executive emphasized that semiconductor manufacturers must simultaneously address advanced packaging challenges and power consumption limits to support next-generation hardware.
- AI racks approach megawatt power levels as SiC, GaN, silicon divide power delivery roles — DigiTimes, 2026-10-12The integration of Silicon Carbide (SiC) and Gallium Nitride (GaN) technologies is enabling power delivery systems to handle the megawatt-scale power requirements of modern AI racks.
- Infineon completes acquisition of C2i to expand AI data center power capabilities — DigiTimes, 2026-10-08Infineon has acquired C2i to bolster its position in providing power semiconductors and power management solutions for AI data centers.
- AI demand drives Episil SiC V-shaped recovery as GaN and TVS capacity reaches full utilization — DigiTimes, 2026-10-08Episil reports a V-shaped recovery in Silicon Carbide (SiC) demand driven by AI, while Gallium Nitride (GaN) and TVS capacity are currently at full utilization.
- Exclusive: GaN defends fast-charging turf, eyes AI power as low-cost SiC pushes into consumer electronics — DigiTimes, 2026-10-07Gallium Nitride (GaN) technology is positioning itself to compete in the AI power space as Silicon Carbide (SiC) moves into consumer electronics.
- LB Semicon expands power chip capacity as Qualcomm production ramps up — DigiTimes, 2026-10-06LB Semicon is increasing its production capacity for power management chips to support the rising demand from Qualcomm's production ramps.
Questions about board-level power: VRMs, power stages, PoL, power semis
- What are board-level power: VRMs, power stages, PoL, power semis?
- The voltage regulator modules and point-of-load converters that step rack-level DC power down to the precise, high-current voltages each GPU and chip needs at the board.
- Which companies make board-level power for AI data centers?
- This catalog lists 12 companies on Board-level power: VRMs, power stages, PoL, power semis, 11 of them with listed equity: Alpha & Omega, Analog Devices, Delta Electronics, Infineon, Monolithic Power Systems, onsemi, Renesas, Rohm, STMicroelectronics, Texas Instruments, and 2 more.
- How does AI change demand for board-level power: VRMs, power stages, PoL, power semis?
- GPU power draw is both higher and far more transient than CPU power draw, which pushes VRM design toward faster response and higher current density than board-level power delivery has historically needed.
- How reliable are these board-level power: VRMs, power stages, PoL, power semis supplier placements?
- The 12 placements on this part break down as 6 disclosed, 6 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a taxonomy lead with no citation yet.
Sources: placements without a source URL come from the taxonomy seed and are tagged accordingly. How this data is built.· Markdown · JSON