August 28, 2006 at 09:33 AM EDT
Enpirion Introduces Ultra-Integrated DC-DC Buck Converter for Low-Power and Portable Applications; High performance, small footprint and low part count simplify design of portable products

Enpirion, Inc. today unveiled its new line of ultra-integrated buck converters for low-power and portable applications, moving the footprint versus efficiency curve to its theoretical limit. The result halves the footprint area without compromising power efficiency. Enpirion's low-power products are the world's smallest power systems on silicon, integrating a PWM controller, MOSFET switches, compensation network, and a power inductor, in a single 5 mm x 4 mm x 1.1 mm QFN package. They are ideally suited for portable handheld applications like smart phones, personal media players, mobile gaming platforms, and any products where space is at a premium.

"These integrated power devices make the design of a high performance switching converter as easy as a linear regulator," said Michael Laflin, Enpirion's Director of Marketing. "They are so simple to use, we think of them as 'plug-and-play power'."

Enpirion's power devices represent the first major innovation in integrated power conversion technology in over a decade. The small footprint and low part count of the EP53x2Q chips make them the solution of choice for flexible portable system architectures where designers need to populate a diverse range of features tailored to specific customer requirements. The Enpirion devices are key in the ongoing trend to replace inefficient linear regulators with switching converters, extending battery life as performance and functionality increase.

"Enpirion has targeted an important segment of the market with these new products," stated Jeff Shepard, President of Darnell Group, Inc. "These three devices span about 30 percent of the market for discrete DC-DC converters. Sales of discrete converters between 0.5 A and 1 A will be about 2.2 billion units in 2006."

The EP53x2Q Product Family

The EP53x2Q converters operate at up to 5 MHz switching frequency, which reduces the size of filter components and enables an order of magnitude improvement in transient performance. The 5 mV peak-to-peak output voltage ripple is ideally suited to portable applications with sensitive RF subsystems. The integrated compensation network affords stability over all operating conditions with 10 uF to 60 uF of output filter capacitance. The EP53x2Q family of buck converters requires two ceramic filter capacitors for a complete solution. These devices have excellent transient performance and low output ripple.

The EP53x2Q family supports load currents of 500 mA, 600 mA, and 800 mA. The voltage output for the EP53x2Q is programmed using a 3-pin voltage select scheme allowing the designer to chose from one of seven pre-defined voltages, or an external divider may be used. The voltage select pins can be changed on the fly to implement dynamic voltage scaling.

"Integration of the inductor is key to simplifying DC-DC converter design," added Dr. Ashraf Lotfi, CTO of Enpirion. "Flawed layout or misplacement of the inductor is typically the source of instability and noise in converter design. Integrating this Enpirion component eliminates these problems, and the result is a turnkey design with the smallest footprint."

Pricing & Availability

The EP53x2Q power devices are available immediately. Pricing in quantities of 1,000 units is $1.61 for the 800 mA version, $1.55 for the 600 mA version and $1.50 for the 500 mA version.

About Enpirion

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

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