Quad LDO Regulator features one-time programmable function.
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Press Release Summary:
Model AS1352 can be programmed on-site from 1.8-3.3 V in steps of 100 mV. Device offers better than ±2% accuracy of output voltage, and output currents of 200 mA. Ceramic output capacitors ranging from 1-4.7 µF guarantee stability. Low-noise performance of 40 µV rms at 10-100 Hz allows direct connection of noise-sensitive circuits without additional filtering networks. Unit is suited for mobile phones, MP3 players, CD/DVD players, and handheld battery-powered devices.
Original Press Release:
austriamicrosystems Launches AS1352 Programmable Quad LDO
Ideal for cordless and mobile phones, MP3 players, CD and DVD players and all handheld battery-powered devices
Unterpremstaetten, Austria - November 09, 2004 - austriamicrosystems has launched the AS1352, a high-performance programmable quad CMOS low dropout voltage regulator (LDO) in a
single 4x4mm package at electronica 2004 Booth A5.121.
In the AS1352, the programmable regulators have been optimised to deliver the best compromise between quiescent current and regulator performance for mobile phones, PDAs, MP3 players and
other battery-powered devices.
The one-time programmable (OTP) function of the AS1352 provides a high degree of design flexibility by allowing engineers to program the output voltage for each regulator on-site in the range from 1.8V to 3.3V in steps of 100mV. This allows for fast prototyping as well as full-production ramp up. Factory trimmed versions are also available. The device offers better than ±2% accuracy of the output voltage and output currents of 200mA for each LDO.
Stability is guaranteed with ceramic output capacitors of only 1µF (±20%-X5R) up to 4.7µF (±20%-X5R). The low equivalent series resistance of these capacitors ensures low output impedance at high frequencies.
"Regulation performance of the AS1352 is excellent even under low dropout conditions when the power transistor has to operate in linear mode," said Walter Moshammer, Marketing Director of
austriamicrosystems' communications business unit. "The low-noise performance of 40µV rms @ 10Hz to 100Hz bandwidth allows direct connection of noise-sensitive circuits without additional
filtering networks."
Standalone demonstration boards for the AS1352 are available making it easy for engineers to plug and play in the lab, particularly for programming output voltages before implementation on PCBs. The AS1352 is available in 12-pin QFN 4x4mm or in wafer bumping packaging.
About austriamicrosystems
austriamicrosystems AG is a leading designer and manufacturer of highly integrated analog intensive mixed signal ICs. austriamicrosystems combines more than 20 years of design capabilities, product and marketing know-how with its own cutting edge analog manufacturing and test facilities. Operating worldwide with more than 800 employees, austriamicrosystems serves four strategic markets: Communications, Industry & Medical, Automotive and Full-Service Foundry. austriamicrosystems AG is listed on the SWX Swiss Exchange in Zurich (ticker symbol: AMS).
For more information, please visit the web site at www.austriamicrosystems.com.
For Further Information
austriamicrosystems AG
Media Relations
Sonja Pieber-Hascher
Tel: +43 (0) 3136 500 5968
Fax: +43 (0) 3136 500 5420
sonja.pieber@austriamicrosystems.com
www.austriamicrosystems.com
