STMicroelectronics Launches 800 VDC to 12V and 6V AI Power Modules
STMicroelectronics has expanded its 800 VDC power conversion portfolio with new 12 V and 6 V architectures co-developed with NVIDIA, complementing its existing 800 VDC to 50 V solution. The new converters boost rack-level efficiency by reducing conversion stages, lowering copper usage and power losses, and support gigawatt-scale AI data center deployments.
1. Portfolio Expansion and NVIDIA Collaboration
STMicroelectronics has introduced two new power conversion architectures converting 800 VDC to 12 V and 6 V, complementing its established 50 V solution and designed around NVIDIA’s 800 VDC reference architecture. This addition completes a full intermediate bus ecosystem for AI datacenter power distribution tailored to gigawatt-scale infrastructure requirements.
2. Technical Highlights of the 12V Converter
The direct 800 VDC to 12 V stage eliminates a traditional 54 V intermediate bus, cutting system-level losses and copper usage while achieving higher rack-level efficiency. A newly developed high-density power delivery board surpasses the combined efficiency of previous two-stage conversion paths, simplifying integration for next-generation GPUs.
3. Advantages of the 6V Architecture
The 800 VDC to 6 V converter brings the intermediate bus closer to GPU modules, reducing IR drops and enhancing transient response critical for large-scale AI training clusters. This design minimizes conversion steps, lowers resistive losses, and supports ultra-dense server configurations with improved thermal performance.