Power Integrations has introduced the InnoMux-2 family of single-stage, independently regulated multi-output offline power-supply ICs. These ICs integrate AC-DC and DC-DC conversion stages into a single chip, offering up to three independently regulated outputs. By eliminating separate DC-DC stages, the ICs reduce component count, PCB footprint, and power system losses. The use of 750 V PowiGaN gallium-nitride transistors, zero-voltage switching, and synchronous rectification contributes to increased efficiency.

The InnoMux-2 ICs provide up to three voltage outputs or two voltage outputs and a constant current output from a single stage, resulting in a compact and efficient power sub-system with low component count. They deliver up to 90 watts of output power with accurate regulation, achieving better than ±3 percent regulation across various conditions.

The total power system efficiency of the InnoMux-2 ICs is above 90 percent, and their advanced controller manages light-load power delivery, reducing no-load consumption to less than 30 mW. This helps meet energy regulations and conserves power for necessary functionality in standby mode.

The ICs come in thermally efficient packages with PCB cooling, eliminating the need for a heatsink. They offer options for dual- and three-output constant voltage, with the ability to dedicate one output for constant current drive, suitable for powering LEDs or high-speed charging.

These ICs find applications in various sectors such as TVs, monitors, appliances, networking, home and building automation, LED emergency lighting, and industrial power supplies.

The InnoMux-2 ICs are available now, with pricing starting at $1.11 for 50,000-unit quantities. Data sheets, reference design reports, and an introduction video are available for download or viewing.