Donnie Saturno unboxes this versatile reference design, a compact 26.5 W isolated flyback power supply delivering 12 V and 5 V outputs for appliance, industrial, and commercial applications.

Powered by the TinySwitch‑5 switcher IC, this design benefits from improved efficiency and enhanced protection features, including built‑in line over‑voltage protection. RDK‑1016 delivers 88.2% full‑load efficiency at 230 VAC and 87% at 115 VAC, and its proprietary control algorithm maintains high efficiency all the way down to extremely light load—easily meeting European standby limits below 300 mW.

Optimized for 120 kHz switching, this design minimizes transformer size, boosts efficiency, and helps control EMI. TinySwitch‑5 also offers flexibility, letting designers choose a switching frequency between 50 kHz and 150 kHz, along with extensive protection features such as line UV, line OV, OTP, SCP, overpower, and primary‑sense output over‑voltage protection.

Want to evaluate it? Order the design kit today.