Infineon offers a comprehensive portfolio of semiconductor solutions tailored to meet the specific demands of battery backup units in AI data centers. Our innovative products enable efficient, reliable, and scalable power conversion, ensuring uninterrupted operation of these critical facilities.

As AI data centers push power density higher, battery backup units must deliver fast switchover, high efficiency, and compact form factors to protect from power outages. Infineon’s PPC-based BBU architecture addresses these needs with scalable power, advanced control, and a clear roadmap tailored for AI server racks. 

Why does uninterruptible power supply matter for AI data centers?

AI data centers depend on continuous power sources to sustain essential operations. A robust backup power system ensures that your infrastructure remains functional even in the event of power outages. To ensure protection during grid disturbances, battery backup units provide rapid, stable power switchover and predictable runtime for racks. This reduces disruption and supports orderly transitions while helping to align uptime goals with sustainability targets in high-density environments.

Explore Infineon's Server Battery Backup Unit (BBU) solutions

To see how these capabilities are translated into a deployable solution with an interactive block diagram, visit our application solution page for server battery backup units (BBU). 

Visit application solution page
data center
data center
data center

PPC-based battery backup units architecture using Silicon and GaN

Infineon’s Partial Power Converter (PPC) approach focuses conversion where it is most effective, reducing losses and heat while maintaining tight regulation. By leveraging both Silicon (Si) and Gallium Nitride (GaN) devices—and selecting topologies for each power tier—the design achieves high efficiency, compact size, and robust control for AI racks.

To further demonstrate the capabilities of our semiconductor solutions, we are building complete system demonstrators for battery backup units, showcasing the advantages of our PPC technology in real-world applications. These demonstrators will highlight the benefits of our products in terms of efficiency, reliability, and scalability, providing a clear path forward for the development of next-generation AI datacenters.

Battery back-up unit roadmap
Battery back-up unit roadmap
Battery back-up unit roadmap

Designing for power density: battery backup units scaling from 4 kW to 12 kW in AI data centers

System features
  • Infineon proprietary topology
  • Continuous power flow
  • Lower voltage rating components
Customer benefits
  • Power scalability
  • Low input and output ripple
  • Ultra high efficiency and power density
Get more information
System features
  • Infineon proprietary topology
  • Combination of Si and GaN
  • Integrated in a battery mockup
Customer benefits
  • Ultra high efficiency
  • High power density
Get more information

In this design, a single 4 kW power converter card has been developed with a superior increase of power density by 400%, enabling best-in-class efficiency. Even higher power levels can be achieved by paralleling multiple cards together on a motherboard. For instance, three 4 kW cards can be combined to create a 12 kW system, offering unsurpassed performance and flexibility.

This modular approach offers several advantages, including ease of scalability, improved reliability, and simplified maintenance.

By paralleling multiple cards, the system can easily be scaled up or down to meet specific power requirements, without the need for a complete redesign. Additionally, if one card were to fail, the system can continue to operate at a reduced capacity, minimizing downtime and ensuring high reliability.

The use of a motherboard to connect multiple cards enables a high degree of flexibility and customization. A variety of configurations can be easily be achieved by adding or removing cards, allowing the system to be tailored to specific application requirements. Furthermore, the modular design simplifies the manufacturing and testing process, as individual cards can be tested and validated before being integrated into the larger system.

Get more information

Battery backup evolution in the age of AI

Discover a scalable, partial power converter-based BBU that separates power from control, delivers up to 3 kW per power card (scaling to 12 kW), and reaches up to 99.5% peak efficiency—maximizing space and performance in modern racks.

System features
  • Infineon proprietary topology
  • Continuous power flow
  • Lower voltage rating components
Customer benefits
  • Power scalability
  • Low input and output ripple
  • Ultra high efficiency and power density
Get more information

System features
  • Infineon proprietary topology
  • Combination of Si and GaN
  • Integrated in a battery mockup
Customer benefits
  • Ultra high efficiency
  • High power density
Get more information

In this design, a single 4 kW power converter card has been developed with a superior increase of power density by 400%, enabling best-in-class efficiency. Even higher power levels can be achieved by paralleling multiple cards together on a motherboard. For instance, three 4 kW cards can be combined to create a 12 kW system, offering unsurpassed performance and flexibility.

This modular approach offers several advantages, including ease of scalability, improved reliability, and simplified maintenance.

By paralleling multiple cards, the system can easily be scaled up or down to meet specific power requirements, without the need for a complete redesign. Additionally, if one card were to fail, the system can continue to operate at a reduced capacity, minimizing downtime and ensuring high reliability.

The use of a motherboard to connect multiple cards enables a high degree of flexibility and customization. A variety of configurations can be easily be achieved by adding or removing cards, allowing the system to be tailored to specific application requirements. Furthermore, the modular design simplifies the manufacturing and testing process, as individual cards can be tested and validated before being integrated into the larger system.

Get more information

Battery backup evolution in the age of AI

Discover a scalable, partial power converter-based BBU that separates power from control, delivers up to 3 kW per power card (scaling to 12 kW), and reaches up to 99.5% peak efficiency—maximizing space and performance in modern racks.

Information hub: Find out more about Infineon's battery backup solutions

Webinar: Battery backup units for uninterrupted AI operations

Infineon mitigates the key challenges posed to battery backup units by AI workloads in modern data centers and explores trends, solutions, and the topologies that fit this application. The session then delves into Infineon’s Partial Power Converter (PPC) technology and showcases system demonstrators to help optimize performance and efficiency. 

To learn more, watch our latest webinar on-demand.
bbu webinar
bbu webinar
bbu webinar

The Future of Powering AI

Efficient and sustainable power is the heart of AI's future. By tackling the soaring power demands and providing advanced semiconductors solutions for data centers from the grid down to the processor's core, Infineon is driving a transformative shift toward efficiency and performance, enabling a sustainable AI-powered tomorrow.

Register now to download the full whitepaper.

High-efficiency BBUs with Infineon’s innovative DP-CF-SUSD topology

Infineon explores on this whitepaper the architecture and challenges of BBUs, focusing on the DP-CF-SUSD circuit and its ability to provide fast and stable power delivery. It is highlighted how Infineon’s advanced MOSFETs and related technologies enable scalable, efficient, and reliable BBU designs, ensuring data centers meet the ever-growing demands of the digital economy. By combining detailed technical insights with practical comparison, this paper provides a pathway for designing next-generation BBUs that are tailored to the critical needs of modern data centers.

Register now to download the full whitepaper.

Press release: Infineon advances Powering AI roadmap
airoc-cyw43xxx.png
airoc-cyw43xxx.png
airoc-cyw43xxx.png

Infineon addresses the market with the “Powering AI” roadmap for battery backup units in AI data centers, highlighting scalable solutions from 4 kW to 12 kW and a modular approach that parallels 4 kW cards to meet higher rack envelopes.

The program emphasizes efficiency, reliability, and power density improvements with PPC-based designs across Silicon and GaN device technologies. Find out more about the updates on Powering AI roadmap on our press release.

Read the press release

We Power AI Podcast: The best way to protect your AI operations with battery backup unit technology

Ensuring AI Uptime: The Crucial Role of Battery Backup Units

In this video, we delve into the vital importance of battery backup units in maintaining the smooth operation of AI servers, even when power outages occur. Join us as we sit down with Filippo Rosetti, Application Marketing Manager at Infineon, to discuss effective battery backup hardware strategies that guarantee uninterrupted power supply to AI systems.

From ensuring process continuity to seamless power switchover, we'll explore the significance of reliable battery systems in powering AI. Don't miss this insightful conversation on the critical role of battery backup units in keeping AI servers running smoothly.

Webinar: Battery backup units for uninterrupted AI operations

Infineon mitigates the key challenges posed to battery backup units by AI workloads in modern data centers and explores trends, solutions, and the topologies that fit this application. The session then delves into Infineon’s Partial Power Converter (PPC) technology and showcases system demonstrators to help optimize performance and efficiency. 

To learn more, watch our latest webinar on-demand.
bbu webinar
bbu webinar
bbu webinar

The Future of Powering AI

Efficient and sustainable power is the heart of AI's future. By tackling the soaring power demands and providing advanced semiconductors solutions for data centers from the grid down to the processor's core, Infineon is driving a transformative shift toward efficiency and performance, enabling a sustainable AI-powered tomorrow.

Register now to download the full whitepaper.

High-efficiency BBUs with Infineon’s innovative DP-CF-SUSD topology

Infineon explores on this whitepaper the architecture and challenges of BBUs, focusing on the DP-CF-SUSD circuit and its ability to provide fast and stable power delivery. It is highlighted how Infineon’s advanced MOSFETs and related technologies enable scalable, efficient, and reliable BBU designs, ensuring data centers meet the ever-growing demands of the digital economy. By combining detailed technical insights with practical comparison, this paper provides a pathway for designing next-generation BBUs that are tailored to the critical needs of modern data centers.

Register now to download the full whitepaper.

Press release: Infineon advances Powering AI roadmap
airoc-cyw43xxx.png
airoc-cyw43xxx.png
airoc-cyw43xxx.png

Infineon addresses the market with the “Powering AI” roadmap for battery backup units in AI data centers, highlighting scalable solutions from 4 kW to 12 kW and a modular approach that parallels 4 kW cards to meet higher rack envelopes.

The program emphasizes efficiency, reliability, and power density improvements with PPC-based designs across Silicon and GaN device technologies. Find out more about the updates on Powering AI roadmap on our press release.

Read the press release

We Power AI Podcast: The best way to protect your AI operations with battery backup unit technology

Ensuring AI Uptime: The Crucial Role of Battery Backup Units

In this video, we delve into the vital importance of battery backup units in maintaining the smooth operation of AI servers, even when power outages occur. Join us as we sit down with Filippo Rosetti, Application Marketing Manager at Infineon, to discuss effective battery backup hardware strategies that guarantee uninterrupted power supply to AI systems.

From ensuring process continuity to seamless power switchover, we'll explore the significance of reliable battery systems in powering AI. Don't miss this insightful conversation on the critical role of battery backup units in keeping AI servers running smoothly.