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2-W Isolated DC/DC Converter

New high-efficiency, primary-side feedback transformer driver for isolated 2-W power supplies, used in programmable logic controllers, industrial automation and other noise-sensitive data acquisition designs. For product details, SPICE model, design tools and evaluation modules visit: www.ti.com/tps55010-pr.

The high-efficiency, 2-W TPS55010 with integrated FETs features a simple and unique Fly-Buck topology to provide isolated power and remove ground loops from analog circuitry and communication interfaces, such as RS-485 and RS-232, from an unregulated 3.3-V or 5-V input. The 2-W converter does not need an optocoupler, and provides up to 85-percent power efficiency.