Step-up DC-DC Converter Suits Battery-Powered Products
austriamicrosystems AG Press ReleaseFlashlightNews.org - 08/28/2006
AS1325 step-up DC-DC converter supplies 300mA output current for portable products where smallest size and lowest power consumption are critical
AS1325 Step-up DC-DC Converter
UNTERPREMSTAETTEN, At. - austriamicrosystems (SWX: AMS), a leading global designer and manufacturer of analog integrated circuits (ICs) for communication, industrial, medical and automotive applications, today announced the expansion of its family of step-up DC-DC converters with the introduction of the AS1325, a high efficiency step-up DC-DC converter with a fully integrated synchronous rectifier. With an efficiency of 96 percent, the AS1325 is an ideal solution for battery powered portable applications with the need for 3.3V or 5.0V supply voltage.
Improving on the performance of the company's AS1320 and AS1321 DC-DC converters, the AS1325 offers significantly increased output current, providing a supply voltage of 1.5 to 3.5V (for 3.3V output voltage) or 1.5 to 5.0V (for 5.0V output voltage). Supplied with less than 2V, the AS1325 is capable of delivering a 300mA output current at 5.0V output voltage or 185mA at 3.3V output voltage.
The AS1325 features a shutdown mode where it draws less than 1mA. In this mode, the battery is connected directly to the output to enable direct battery feed-through. This enables the input battery to be used as backup or as a real-time clock supply when the converter is off and eliminates the need for an expensive back-up battery. To ensure stable operation, the integrated "power on" reset circuitry enables the AS1325 to reset any type of microprocessor after power up to provide a stable start.
"The high output current combined with low power consumption and high efficiency makes the AS1325 an ideal solution for battery powered devices like medical and diagnostics equipment, digital cameras, MP3 players, PDAs and smart phones, cordless phones and other handheld products," said Walter Moshammer, standard linear marketing director at austriamicrosystems. "The outstanding efficiency of 96 percent helps to significantly extend the battery life of dual-cell battery powered devices."
The AS1325 is available in a 6-pin SOT23 package. For product specific information, to download data sheets or to request free samples from austriamicrosystems' online shop ICdirect, please visit www.austriamicrosystems.com/
About austriamicrosystems
austriamicrosystems is a leading designer and manufacturer of high performance analog ICs, combining almost 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 850 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). For more information, please visit the web site at www.austriamicrosystems.com