austriamicrosystems Introduces High Efficiency Inductorless DC-DC Boost Converter.

AS1301 Delivers 50mA at 5V While Requiring Smallest External Components

UNTERPREMSTAETTEN, Austria -- austriamicrosystems (SWX:AMS), a leading global designer and manufacturer of analog ICs for communications, industrial, medical and automotive applications, today introduced the AS1301, the first inductorless DC-DC boost converter in an upcoming portfolio. The AS1301 is capable of output currents as high as 50mA from a wide ranging input of 2.7 to 5.25V.

The new AS1301 offers low-noise constant frequency operation from light to higher loads. Its unique constant-frequency architecture provides both low input and low output ripple and its high 1MHz switching frequency allows the use of extremely small external capacitors. Low external parts count of two equal to or less than 220nF flying caps and two equal to or less than 2.2uF bypass capacitors, combined with the small size of the low profile (0.6mm) WL-CSP-8 package, make the AS1301 an extremely compact solution for space-constrained applications.

Providing a regulated output, the AS1301 is ideally suited for a variety of applications such as 2-3 AA cells alkaline/NiMH or 1 cell Li-Ion battery to 5V boost conversion in portable devices. With an excellent efficiency of up to 92%, the AS1301 offers lowest quiescent current and features a less than 5uA shutdown mode in which the output is fully disconnected from the input.

"Inductorless DC-DC converters like the AS1301 are often the ideal solution for applications requiring a combination of low power, simplicity and low cost," commented Walter Moshammer, marketing director Standard Linear at austriamicrosystems. "They require only capacitors and have no need for expensive inductors to generate the desired voltage which has the additional advantage that no electromagnetic emissions are influencing the application."

To prevent excessive inrush current during startup, the AS1301 offers a soft-start feature plus additional features like overload protection and thermal shutdown circuitry. The AS1301 is available in a TDFN (3x3x0.8mm) 10-pin or a WL-CSP 8-bump package and is suitable for operating environments ranging from -40 to +85[deg]C.

More product specific information can be downloaded from austriamicrosystems' website at http://www.austriamicrosystems.com/03products/products_detail/AS1301/A S1301.htm

(Due to its length, this URL may need to be copied/pasted into your Internet browser's address field. Remove the extra space if one exists)

About austriamicrosystems

austriamicrosystems is a leading designer and manufacturer of high performance analog ICs, combining more than 25 years of analog design capabilities and system know-how with its own state-of-the-art manufacturing and test facilities. austriamicrosystems leverages its expertise in low power and high accuracy to provide industry-leading customized and standard analog products. Operating worldwide with more than 1,000 employees, austriamicrosystems focuses on the areas of power management, sensors & sensor interfaces, portable audio and car access in its markets Communications, Industry & Medical and Automotive, complemented by its Full Service Foundry activities. austriamicrosystems is listed on the SWX Swiss Exchange in Zurich (ticker symbol: AMS).