Surface Mount Power Conversion IC eliminates heatsinks.

Press Release Summary:

Housed in 12-pin, low-profile eSOP(TM) package that occupies 119 mm² footprint, TOPSwitch-JX can achieve less than 60 mW no-load in power supplies up to 65 W. Unit incorporates PSU flyback controller and 725 V MOSFET power in single package, with multi-mode control algorithm that maximizes power efficiency across entire load range. With standby power consumption of 85 mW at 264 Vac, IC is suited for LCD TV auxiliary power, set-top boxes, PC standby, and DVD players.

Original Press Release:

Power Integrations' TOPSwitch(TM)-JX Power Conversion ICs Now Available in Low-Profile, Thermally Efficient, Surface-Mount Package

Eliminate heatsinks and achieve <60 mW no-load in power supplies up to 65 W

SAN JOSE, CALIF. - Power Integrations (Nasdaq: POWI), the leader in high-voltage integrated circuits for energy-efficient power conversion, today announced the availability of its industry-leading TOPSwitch-JX power conversion IC in an innovative eSOP(TM) low-profile power package. This slender new surface-mount package is suited for applications without heatsinks up to 65 W in compact, open-frame installations such as slim LCD TV auxiliary power, set-top boxes, PC standby, and DVD players. In notebook, netbook, and printer adapters, the thermally efficient eSOP package can supply up to 40 W using only the PCB for thermal management.

The new eSOP package features an exposed die-attach pad that may be reflow soldered to the PCB during assembly. This permits the copper ground plane and thermal mass of the board to act as a heat sink. The 12-pin package occupies a tiny 119 mm2 footprint, yet maintains safety creepage and clearance distances required by international standards, and permits use in offline applications.

TOPSwitch-JX ICs incorporate both a PSU flyback controller and a 725 V MOSFET power in a single package, and feature a novel multi-mode control algorithm that maximizes power efficiency across the entire load range. High efficiency at full power minimizes power wasted during normal operation and reduces the complexity and expense of thermal management on the system. At low power levels, high efficiency enables adapters with extremely low no-load consumption and maximizes power available to the system in standby mode for applications constrained by standards and regulatory controls.

Excellent light-load efficiency and low power consumption in the no-load condition are facilitated by a novel multi-cycle modulation mode, which reduces the average switching frequency while minimizing output ripple and audible noise. This allows designs to easily meet stringent new efficiency specifications, such as ENERGY STAR® and the European Ecodesign Directive, while maintaining a stable output voltage. Standby power consumption of just 85 mW (for a 20 mW load) at 264 VAC is easily achieved using TOPSwitch-JX.

David New, product marketing manager at Power Integrations, comments: "By offering our TOPSwitch-JX devices in these low-profile packages, we are enabling designers of height-restricted equipment to take advantage of the superb power efficiency and no-load performance of our PSU ICs. Moreover, the excellent thermal performance of the surface-mount package means that designers can be rid of heavy, bulky, and expensive heatsinks in many instances."

TOPSwitch-JX devices in the new low-profile package are available now starting at $0.79 each for 10,000-piece quantities. Full technical details, including the product introductory video, datasheet, and design ideas, are available now on the Power Integrations website at

About Power Integrations

Power Integrations is the leading supplier of high-voltage analog integrated circuits used in energy-efficient power conversion. The company's innovative technology enables compact, energy-efficient power supplies in a wide range of electronic products, in AC-DC, DC-DC and LED lighting applications. Since its introduction in 1998, Power Integrations' EcoSmart(TM) energy-efficiency technology has saved an estimated $4.6 billion of standby energy waste and prevented millions of tons of CO2 emissions. The company's Green Room web site provides a wealth of information about "energy vampires" and the issue of standby energy waste, along with a comprehensive guide to energy-efficiency standards around the world. Reflecting the environmental benefits of EcoSmart technology, Power Integrations is included in clean-technology stock indices sponsored by the Cleantech Group (Amex: CTIUS) and Clean Edge (Nasdaq: CELS). For more information, please visit .

Media Contact

Peter Rogerson

Power Integrations

(408) 414-8573

Power Integrations, TOPSwitch, eDIP, eSOP, EcoSmart, and the Power Integrations logo are trademarks or registered trademarks of Power Integrations, Inc. All other trademarks are the property of their respective owners.

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