Enpirion’s Feature-rich DC-DC Converters Redefine Low-Power Switching

Ultra-integrated devices simplify board design for noise-sensitive systems

BRIDGEWATER, New Jersey, July 13, 2009 – Enpirion today announced the availability of two feature-rich voltage mode synchronous buck DC-DC converters: the 6A EN5364 and the 9A EN5394. These low-power switch-mode converters are complete power systems on a chip (PwrSoC), achieving up to 93% efficiency and integrating the inductor, power switches, gate drive, controller, and loop compensation, all in tiny 8 mm x 11 mm x 1.85 mm packages. The 9A EN5394 sets a new standard in power density by delivering 100 Watts per square inch (15 Watts per square centimeter).

Leading OEMs have widely adopted this technology and are already designing with Enpirion’s new 6A and 9A DC-DC converters. The parts meet the precise voltage and fast transient requirements of high-performance applications such as set-top boxes/HD DVRs, LAN/SAN adapter cards, audio/video equipment, optical networking, multi-function printers, test and measurement, embedded computing, storage, and servers.

“Power density is critical, especially as the number of application features and functions increase and the equipment form-factor shrinks,” said Paul O’Shea, Sr. Editor for Electronic Products magazine. “Enpirion proves that they can meet the industry challenge for high efficiency and power density, with the introduction of the EN5364 and the 100 Watts per square inch EN5394 highly integrated power SoC,” said Mr. O’Shea.

Operating the EN5364 and EN5394 power devices requires very few external components, resulting in simplified board design and layout, as well as improved manufacturability and reliability. The two parts are pin compatible, offering a scalable power solution that enables the user to easily tune to their design as the power requirements evolve. A rich set of features, including phase-lock operation and phase delay, facilitates ease of use in systems that are sensitive to ripple and beat frequencies.

Key features of the EN5364 and EN5394 include:

• Outstanding power density
• Wide input voltage range of 2.375V to 6.6V
• 4MHz operating frequency with the ability to synchronize to an external system clock or other Enpirion parts
• Output voltage margining
• Pre-bias monotonic start-up
• Master/Slave configuration for paralleling up to four PwrSoC devices for greater power output (up to 24A for the EN5364, and 36A for the EN5394)
• Programmable phase delay between Master/Slave and Slave/Slave devices for lower input and output ripple
• Multiple devices on a system board can be phase locked to eliminate beat frequencies

“The EN5364 and EN5394 deliver performance, simplicity and superior noise reduction,” said Dr. Ashraf Lotfi, Enpirion’s founder and CTO. “With the number of device features and functions increasing and equipment form-factors shrinking, these power converters give designers a critical advantage.”

As with all of Enpirion’s products, the 6A and 9A converters were developed using advanced circuit techniques, ultra-high switching frequency, and very advanced, high-density, integrated circuit and proprietary inductor technology. The result is high-quality, ultra compact, non-isolated DC-DC conversion, which Enpirion has become well-known for in the industry.

Pricing & Availability

Enpirion’s feature-rich power devices are production qualified and available now, with pricing set at $6.10 for the EN5364 and $7.50 for the EN5394 in quantities of 1000 parts. Datasheets and additional information are available for the 6A EN5364 and the 9A EN5394.

About Enpirion

Enpirion is the leading provider of PwrSoCs (power supply on a chip), delivering breakthrough power density, low noise, high performance, 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 server platforms, enterprise storage, wireless broadband, consumer electronics, smart phones, telecommunications equipment and more. For additional information about Enpirion and its award-winning products, please visit www.enpirion.com.

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