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Why It Matters

By replacing silicon MOSFETs with high‑voltage GaN, manufacturers can cut energy waste and shrink power supplies, accelerating the electrification of AI workloads, robotics and grid infrastructure.

Key Takeaways

• STMicro launches 700 V GaN transistors for AI, robotics, industrial
• Devices deliver up to 29 A, R_DS(on) as low as 53 mΩ
• Low switching loss enables higher frequency, smaller magnetic components
• Prices range $0.63‑$2.25 per 1,000 units, now in production
• Supports DPAK, TO‑LL, PowerFLAT packages with Kelvin source connections

Pulse Analysis

Gallium‑nitride (GaN) is reshaping power electronics by offering higher breakdown voltage, lower on‑resistance, and dramatically reduced switching losses compared with traditional silicon. STMicroelectronics’ 700 V PowerGaN portfolio extends these advantages into the medium‑ and high‑power domain, where AI accelerators and high‑density compute racks demand ever‑greater efficiency. The new transistors’ ultra‑low internal capacitances and high‑frequency capability allow designers to push switching rates well above 1 MHz, shrinking magnetic components and enabling more compact, lighter power modules.

The timing aligns with surging power consumption in AI data centers, where servers now draw tens of kilowatts per rack, and with the rise of humanoid robots that require precise, high‑torque actuation. By cutting conduction and switching losses, the GaN devices can lower overall system power draw by up to 20 % while also reducing thermal management requirements. In industrial settings, the higher frequency operation translates to smaller, more reliable converters for smart‑grid applications, supporting tighter integration of renewable generation and storage.

STMicro’s pricing—$0.63 to $2.25 per 1,000 units—makes GaN competitive for volume production, positioning the company against rivals such as Infineon and Texas Instruments. The availability in familiar DPAK, TO‑LL and PowerFLAT footprints eases adoption for OEMs already using silicon MOSFETs. Looking ahead, STMicro’s roadmap promises additional voltage ratings and integrated driver features, suggesting a broader shift toward GaN as the default technology for next‑generation high‑performance power conversion.