STMicroelectronics Expands 800 VDC Power Portfolio with New Architectures for AI Data Center Efficiency and Scale

STMicroelectronics Expands 800 VDC Power Portfolio with New Architectures for AI Data Center Efficiency and Scale

(IN BRIEF) STMicroelectronics has expanded its 800 VDC power conversion portfolio with new 12V and 6V architectures designed for next-generation AI data centers. Complementing its existing 50V solution, the new converters provide a complete ecosystem for efficient power distribution in high-density computing environments. The 12V architecture improves efficiency by eliminating intermediate conversion stages, while the 6V solution enables power delivery closer to GPUs, enhancing performance and reducing losses. Developed in line with NVIDIA’s 800 VDC reference design, the solutions support evolving server architectures and the growing demands of hyperscale AI infrastructure. By integrating advanced semiconductor technologies and system-level design, STMicroelectronics aims to enable more scalable, energy-efficient, and sustainable data center operations.

(PRESS RELEASE) GENEVA, 18-Mar-2026 — /EuropaWire/ — STMicroelectronics (NYSE: STM), a global leader in semiconductor technology, has expanded its high-voltage power conversion portfolio with the introduction of new 800 VDC to 12V and 800 VDC to 6V architectures, strengthening its offering for next-generation AI data centers. The new solutions, presented during NVIDIA GTC 2026, build on the company’s previously introduced 800 VDC to 50V stage and establish a comprehensive portfolio for power distribution within large-scale, high-performance computing environments.

As AI workloads continue to scale rapidly, data centers are increasingly shifting toward 800 VDC architectures to improve energy efficiency, reduce transmission losses, and support higher compute densities. STMicroelectronics’ latest developments align with NVIDIA’s 800 VDC reference design and are designed to meet the evolving power requirements of hyperscale infrastructure.

The newly introduced 12V and 6V conversion stages reflect the growing diversity of server architectures, where different voltage levels are required depending on GPU configurations, rack density, cooling strategies, and system design. These voltage rails are expected to coexist across modern AI data centers, supporting a wide range of applications from training clusters to inference systems.

The 800 VDC to 12V solution enables direct, high-efficiency power delivery from rack-level systems to the voltage domains used by advanced AI processors. By removing the need for an intermediate 54V conversion stage, the architecture reduces complexity, lowers system losses, and improves overall efficiency.

Meanwhile, the 800 VDC to 6V architecture is designed to bring power conversion closer to the GPU, reducing electrical resistance and improving performance during rapid load changes. This approach also minimizes material usage, particularly copper, while enhancing system responsiveness in high-density compute environments.

Together with the existing 50V solution, these new architectures complete STMicroelectronics’ ecosystem for 800 VDC power distribution. The portfolio integrates a range of technologies, including silicon, silicon carbide, and gallium nitride semiconductors, alongside analog and mixed-signal components and microcontrollers, with customisation at both chip and package levels.

Marco Cassis, President of STMicroelectronics’ Analog, Power & Discrete, MEMS and Sensors Group, highlighted that the rapid expansion of AI infrastructure is driving the need for more advanced power distribution systems. He noted that the company’s integrated solutions are designed to enable more efficient, scalable, and sustainable data center architectures capable of supporting gigawatt-scale computing environments.

The latest developments build on ST’s earlier prototype introduced in 2025, which demonstrated a compact, high-efficiency power delivery system operating directly from 800 V with performance levels exceeding 98% efficiency.

Additional technical information at https://blog.st.com/800-v-hvdc-data-center/

About STMicroelectronics
At ST, we are 50,000 creators and makers of semiconductor technologies mastering the semiconductor supply chain with state-of-the-art manufacturing facilities. An integrated device manufacturer, we work with more than 200,000 customers and thousands of partners to design and build products, solutions, and ecosystems that address their challenges and opportunities, and the need to support a more sustainable world. Our technologies enable smarter mobility, more efficient power and energy management, and the wide-scale deployment of cloud-connected autonomous things. We are on track to be carbon neutral in all direct and indirect emissions (scopes 1 and 2), product transportation, business travel, and employee commuting emissions (our scope 3 focus), and to achieve our 100% renewable electricity sourcing goal by the end of 2027.

Further information can be found at www.st.com.

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SOURCE: STMicroelectronics