Alpha and Omega Semiconductor (AOS) is a long-established supplier of power semiconductors used across computing, industrial, automotive and energy systems. The company focuses on high-performance device technologies, including Silicon Carbide (SiC), Gallium Nitride (GaN), power MOSFETs and power management ICs, with a design philosophy centred on improving efficiency, thermal behaviour and power density in demanding applications. AOS operates its own fabrication facilities as well as joint development partnerships, giving it the flexibility to innovate in materials, device structures and packaging for next-generation power conversion systems.

A large part of AOS’ portfolio is designed for power delivery stages found in servers, storage systems and AI compute infrastructure. This includes high-voltage SiC devices for front-end AC-to-DC conversion, GaN switches for high-frequency DC-DC architectures and multi-phase controllers for GPU and accelerator modules. The company also produces stacked-die MOSFETs and footprint-compatible GaN options that give power designers more freedom to balance cost, efficiency and density in modern topologies.

While AOS is widely known for its discrete MOSFET devices, it has steadily expanded into wide bandgap semiconductors as the power requirements of data centers, electric vehicles and renewable energy systems increase. Recent product generations focus on improving switching performance, reducing conduction losses and supporting higher operating voltages, particularly as industries move toward more efficient distribution architectures.

Across its product lines, AOS’ core expertise lies in bridging practical constraints with advanced device performance. This positions the company to support emerging trends such as higher-voltage data center power distribution, compact high-frequency converters and multi-kilowatt AI compute platforms. As workloads continue to increase and system efficiency becomes more critical, AOS’ technologies play a significant role in enabling scalable, high-density power designs.