As AI drives the urgent need for greater power density, high-voltage Gallium Nitride (GaN) technology has emerged as the future of power conversion. This study presents how Power Integrations' 1250 V and 1700 V PowiGaN™ switches address the specific requirements of NVIDIA’s 800 VDC AI data center architectures. By utilizing 1250 V GaN solutions, complex stacked topologies can be simplified into a single-stage half-bridge LLC, outperforming 1200 V SiC MOSFETs in terms of efficiency, thermal performance, and Figure of Merit (FOM). The D-Mode Cascode structure further provides a wide gate drive margin and superior reliability compared to E-mode devices. These advancements enable high-frequency operation (up to 1 MHz), delivering a cost-effective, high-density power solution essential for next-generation AI computing infrastructure.
Power Integrations leads the industry in offering the most advanced GaN power semiconductor technology, with the only 1250 V and 1700 V GaN switches in volume production. Among the benefits:
- Lower switching losses
- Higher efficiency
- Smaller, lighter designs
The 1250 V PowiGaN technology enables direct 800 V to 12 V conversion in a simple half-bridge topology, delivering unmatched power density—a critical advantage for server boards where every millimeter of space and headroom matters.
Features
- Simpler gate driver, higher short-circuit tolerance, and safer turn-off behavior with cascode structure
- High switching frequency for better efficiency and thermal performance
- Proven reliability record
- Highest efficiency power conversion with a 33% reduction in energy loss
Applications
- Home Appliances
- Server Standby Power
- Industrial Applications
- Smart Meters
- Smart Grids
- Solar Inverters
- Smart Lighting
Benefits
- Proven Reliability
Years of field-proven performance in demanding environments - Highest Efficiency Flyback Converters
Up to 95% efficiency across the full-load range - Compact Thermal Design
Supports up to 200 W output in enclosed adapters without heatsinks - Broad Voltage Range
Available in 750 V, 900 V, 1250 V, and 1700 V switch options - Cascode Architecture
Simplifies gate drive design, improves short-circuit tolerance, and ensures safe, reliable switching - High-Frequency Switching
Enables better efficiency, smaller magnetics, and superior thermal performance