Power Integrations (NASDAQ: POWI), experts in high-voltage integrated circuits for energy-efficient power conversion, today announced the launch of the InnoMux™-2 family of single-stage, independently regulated multi-output offline power-supply ICs.

InnoMux-2 ICs consolidate AC-DC and downstream DC-DC conversion stages into a single chip, providing up to three independently regulated outputs for use in white goods, industrial systems, displays, and other applications requiring multiple voltages. Eliminating separate DC-DC stages slashes component count, reduces PCB footprint, and increases efficiency by as much as ten percentage points compared to traditional two-stage architectures. Efficiency is aided by the ICs’ 750 V PowiGaN™ gallium-nitride transistors, zero-voltage switching (without an active clamp), and synchronous rectification.
Noted Roland Saint-Pierre, vice president of product development at Power Integrations, “Most modern electronic systems rely on multiple internal voltages to operate various functions such as computing, communication, and actuation function – typically heat, light, sound or motion of some kind. But losses in each conversion stage are compounded, degrading system performance and generating heat. The InnoMux-2 IC overcomes this challenge by providing up to three independently regulated voltage outputs or two voltage outputs and a constant current output from a single stage, achieving a compact and efficient power sub-system with low component count.”
InnoMux-2 ICs deliver up to 90 watts of output power with accurate regulation of better than ±3 percent across the full input line, load, temperature, and differential current step conditions. Total power system efficiency (AC to regulated low-voltage DC segment) is above 90 percent; the advanced InnoMux-2 controller also manages light-load power delivery, avoiding the need for pre-load resistors and reducing no-load consumption to less than 30 mW. This conserves power for necessary application functionality subject to the 300 mW allowance for standby usage under the European energy-using product (EuP) regulations.
InnoMux-2 devices leverage Power Integrations’ thermally efficient InSOP™24 and InSOP™28 packages with PCB cooling, so no heatsink is required. Device options include dual- and three-output constant voltage (CV); optionally, one output may be dedicated to constant current (CC) drive, suitable for powering LEDs in displays or for high-speed charging of an internal battery.
Typical applications include TVs, monitors, appliances, networking, home and building automation, LED emergency lighting, and industrial power supplies.
Pricing for InnoMux-2 IMX2174F devices starts at $1.11 for 50,000-unit quantities. Datasheets, three reference design reports, and an introductory video are immediately available for download or viewing.
For further information, contact a Power Integrations sales representative or visit power.com.
Source/Photo Credit: Power Integrations, Inc.
About Power Integrations:
Power Integrations, Inc. is a leading innovator in semiconductor technologies for high-voltage power conversion. The company’s products are key building blocks in the clean-power ecosystem, enabling renewable energy generation and the efficient transmission and consumption of power in applications ranging from milliwatts to megawatts.
Trademark Note:
Power Integrations, the Power Integrations logo, InnoMux, InSoP, and PowiGaN are trademarks, service marks, or registered trademarks of Power Integrations, Inc. All other trademarks are the property of their respective owner.
(Editor’s Note: All trademarks mentioned in this article, including company names, product names, and logos, are the property of their respective owners. Use of these trademarks is for informational purposes only and does not imply any endorsement.)