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Enpirion DC-DC Converter Quiets the Competition with its Low Noise

Fully-integrated power device ideal for low-power mobile applications

(PresseBox) (BRIDGEWATER, NEW JERSEY, ) Enpirion today announced the availability of a new 600 mA synchronous buck converter with an integrated inductor, delivering extremely low output ripple in a tiny 3mm x 3mm x 1.1mm QFN package. The complete solution requires only 2 tiny MLCC capacitors for a solution footprint of only 22 sq mm. Enpirion s low noise devices are critical for today s RF, analog, and high-speed digital applications where switcher noise can limit data throughput and cause failure in spectral compliance.

As with all of Enpirion s switch-mode converters, the new EP5368QI part features a proprietary low loss integrated inductor, PWM controller, MOSFETS and compensation network. This high level of integration greatly simplifies design, contains noise, and reduces part count and size. The device has a 4 MHz switching frequency, and achieves up to 94% efficiency. It provides 600 mA of continuous output current over the industrial temperature range, and 700 mA over the commercial temperature range.

Highlights of the EP5368QI include:

- Low Noise - This device offers very low radiated noise (EMI), low conducted noise, and low output ripple. Enpirion s unprecedented level of integration localizes the high frequency noise associated with switch-mode DC-DC converters, keeping it inside the package and not on the customer s PCB. The converter also uses voltage mode control to achieve high noise immunity and superb load matching to today s sub-90nm semiconductor process technology.

- Small Footprint - The EP5368QI requires only two small MLCC capacitors for a complete solution, with a total footprint of just 22 sq mm. This part has shrunk from its first generation, which had a 32 sq mm solution footprint. Enpirion s products are known for offering up to 70% reduction in DC-DC converter footprint over competing solutions.

- Ease of Design - Integration of the inductor makes switch-mode converter design an almost turnkey experience. Further, the part uses a 3-pin voltage selector to choose one of seven preset common output voltages or an external resistor divider. The overall design experience is nearly as easy as that of designing in a linear regulator, with the efficiency of a switcher.

"Our team s expertise in the field of high-frequency converter design dates back more than 20 years, and this experience has allowed us to develop a switch-mode converter with the lowest noise and smallest footprint in its class," stated Ashraf Lotfi, Enpirion s President and CTO. "Others have tried without success, making our product stand alone in the low-noise, small footprint arena."

Enpirion s newest 600 mA DC-DC converter is currently designed into a number of platforms. It is well-suited for a broad range of mobile and wireless broadband applications, including (but not limited to) smart phones, wireless data cards, portable gaming devices, navigation systems, personal media players, and advanced mobile processors.

Pricing & Availability The EP5368QI is available now, and pricing is set at $0.98 for quantities of 10,000 parts.

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Enpirion is the leading developer of Power Systems on Silicon, delivering breakthrough power density and ease of use. Enpirion utilizes a fabless manufacturing model and partners with the industry's leading assembly and test houses to provide the highest degree of quality and reliability. Enpirion's products are designed into a broad range of demanding applications including embedded computing, set-top boxes, consumer electronics, telecommunications equipment, cellular handsets and more. For additional information about Enpirion and its award-winning products, please visit www.enpirion.com.