STDA027 March   2026 LM2776

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1The Evolution of Power Supply Units in Data Center Servers
  5. 2The Requirements of PSUs in Data Center Servers
    1. 2.1 Higher Efficiency Demands
    2. 2.2 Fast Transient Response Driven by GPUs
    3. 2.3 Intelligence and Security
  6. 3PSU Variations in 800V DC Architecture
  7. 4Key Technologies Shaping the Next Generation of PSUs
    1. 4.1 Gallium Nitride (GaN) Reduces Switching Energy Losses and Increases Efficiency
    2. 4.2 Bidirectional GaN Cost Down Vienna PFC Solution
    3. 4.3 Hybrid Hysteretic-Controlled LLC Helps Quicken Transient Response
    4. 4.4 High-Voltage ORing Control Supports 800V Hot Swapping
  8. 5Conclusion
  9. 6References

6 References

  1. Desheng Guo (July 2025). Implementing LLC current-mode control on the secondary side with a digital controller, Texas Instruments' technical article.
  2. Huntington, Jared and Tu, Mike (2025). 800 VDC Architecture for Next-Generation AI Infrastructure, NVIDIA white paper.
  3. Le, Kelvin and Hou, Yuetao (October 2025). Application of TI Bidirectional GaN for a Three-Level T Type Converter Texas Instruments' application brief.
  4. Li Aki, Guo Desheng, Luong Peter, Jiang Chen (August 2024). Digital Control Implementation for Hybrid Hysteretic Control LLC Converter, Texas Instruments' application note.
  5. MacDonald, Brent (November 2025) Data Centers Evolve to Meet AI's Massive Power Needs, Texas Instruments' technical article.
  6. Morroni, Jeffrey and Shenoy, Pradeep (April 2023). Understanding the Trade-Offs and Technologies to Increase Power Density, Texas Instruments' marketing white paper.
  7. Ruffo, Riccardo, Le, Kelvin and Parzhuber Harald (2024). Comparison of AC/DC Power Conversion Topologies for Three Phase Industrial Systems, Texas Instruments' Power Supply Design Seminar SEM2600 Topic 7.
  8. Texas Instruments, PMP23475, GaN-Based 5kW Two-Phase Totem-Pole PFC Reference Design With Zero Current Detection, tool.
  9. Texas Instruments, PMP23630, Datacenter Reference Design for HVDC 30kW PSU, tool.
  10. Texas Instruments, PMP40988, Variable-Frequency, ZVS, 5kW, GaN-Based, Two-Phase Totem-Pole PFC Reference Design, tool.
  11. Texas Instruments, PMP41081,1kW, 12V HHC LLC Reference Design Using C2000™ Real-Time Microcontroller, tool.
  12. Texas Instruments, TIDM-1000, Vienna Rectifier-Based Three Phase Power Factor Correction Reference Design Using C2000™ MCU, tool.
  13. Yin, Richard (December 2023), Five Major Trends in Power-Supply Designs for Servers, Texas Instruments' technical article.
  14. Zhang, M. (2024, March). PUE (Power Usage Effectiveness): Optimizing data centers. Dgtl Infra.