Power Integrations launches 1700V GaN switcher IC

The latest device integrates the industry’s first 1700V gallium nitride (GaN) switch, developed with the company’s proprietary PowiGaN technology.

This 1700V rating advances the performance standard for GaN power devices, previously set by Power Integrations’ own 900 and 1250V models released in 2023. The 1700V InnoMux-2 IC supports 1000V DC nominal input voltage in a flyback configuration and delivers over 90% efficiency in applications requiring one, two, or three supply voltages.

Each output is regulated with one percent accuracy, eliminating the need for post regulators and boosting system efficiency by roughly 10%. This new IC provides a cost-effective alternative to silicon carbide (SiC) transistors in power supply applications, including automotive chargers, solar inverters, three-phase meters, and various industrial power systems.

Radu Barsan, Vice President of Technology at Power Integrations, said: “Our rapid pace of GaN development has delivered three world-first voltage ratings in a span of less than two years: 900V, 1250V and now 1700V. Our new InnoMux-2 ICs combine 1700V GaN and three other recent innovations: independent, accurate, multi-output regulation; FluxLink, our secondary-side regulation (SSR) digital isolation communications technology; and zero voltage switching (ZVS) without an active-clamp, which all but eliminates switching losses.”

“1700V rating is substantially higher than any other commercially available GaN HEMT that we are aware of,” said Ezgi Dogmus, Activity Manager, compound semiconductors at Yole Group. “The Power GaN device market is poised to reach $2 billion by decade's end, expanding across various application spaces with potentially attractive cost advantages over SiC.”

Availability & resources

Pricing for InnoMux-2 1700V ICs starts at $4.90 for 10,000-unit quantities. A reference design, RDR-1053, which describes a 60W dual-output (5V and 24V) power supply, can be downloaded from the Power Integrations website at no cost. For sample ICs, evaluation boards and further information, contact a Power Integrations sales representative or one of the company’s authorised worldwide distributors – DigiKey, Newark, Mouser and RS Components, or visit power.com.