Power Integrations InnoSwitch3 IC Range That Has GaN Transistors

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  • 94 per cent efficient power supplies
  • Highly robust 750V GaN IC 

    Power Integrations announces the expansion of its InnoSwitch™3 families of offline CV/CC flyback switcher ICs. The new INN3x78C devices incorporate a compact 750V PowiGaN™ transistor for efficient power supply of 27W to 55 W without heatsinks.

With up to 94 per cent efficiency across line and load and increased robustness, PowiGaN technology is highly resistant against line surges and swells that are common in regions with unstable mains voltage. This allows OEMs to specify a single power supply design for worldwide use.

Chris Lee, director of product marketing at Power Integration says, “We have experienced increased demand for our efficient AC-DC converter ICs with the highly robust 750V GaN transistor. Simultaneous electrical strength and efficiency are difficult to achieve due to the relationship between Silicon MOSFET breakdown voltage and COSS-related switching loss. Our electrically strong PowiGaN transistors have very low COSS, so achieving over 94 per cent efficiency and low field return rate from tropical markets is very straightforward.”

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Applications for the new parts include USB PD and high-current chargers/adapters for mobile devices, as well as set-top boxes, displays, networking and gaming products and appliances – especially those aiming to comply with the planned European Energy Labeling Regulation.

The ICs are housed in a safety-compliant InSOP™-24D package as other members of the GaN-based InnoSwitch3 families, which target up to 120 W.

Power Integrations’ new InnoSwitch3 ICs are available now with InnoSwitch3-CP, InnoSwitch3-EP and InnoSwitch3-Pro.


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