STDA027
March 2026
LM2776
1
Abstract
Trademarks
1
The Evolution of Power Supply Units in Data Center Servers
2
The Requirements of PSUs in Data Center Servers
2.1
Higher Efficiency Demands
2.2
Fast Transient Response Driven by GPUs
2.3
Intelligence and Security
3
PSU Variations in 800V DC Architecture
4
Key Technologies Shaping the Next Generation of PSUs
4.1
Gallium Nitride (GaN) Reduces Switching Energy Losses and Increases Efficiency
4.2
Bidirectional GaN Cost Down Vienna PFC Solution
4.3
Hybrid Hysteretic-Controlled LLC Helps Quicken Transient Response
4.4
High-Voltage ORing Control Supports 800V Hot Swapping
5
Conclusion
6
References
Technical White Paper
Evolution of the Power Supply Unit in Data Center Servers and Key Technologies Supporting 800V DC Architecture