austriamicrosystems Introduces New Dual Ultra Low Voltage Noise LDO with Excellent Power Supply Rejection Ratio

The dual low drop out regulator AS1374 is ideally suited for a wide range of portable battery powered devices. The low noise and excellent PSSR enable radio designers to achieve optimum system performance.

UNTERPREMSTAETTEN, Austria — austriamicrosystems (SIX:AMS), a leading global designer and manufacturer of high performance analog ICs for communications, industrial, medical and automotive applications expanded its low dropout regulator portfolio with the dual LDO AS1374, capable of delivering up to 200mA continuous load current at each output.

"AS1374 is the dual low drop out regulator of choice for powering circuits that require a low-noise supply, such as RF, cell-phone cameras, wireless base stations and PA bias supplies. Its’ superior performance in radio based designs provides the engineers much needed design margin while maintaining the overall system integrity”, said Bruce Ulrich, marketing director Consumer & Communications at austriamicrosystems. “Offering low dropout voltage as well as low quiescent current, this dual ultra low voltage noise LDO is ideally suited for any battery-powered device and complements our family of ultra low noise LDO’s.”

austriamicrosystems’ AS1374 operates from a 2 to 5.5V supply, making it ideal for portable battery powered applications. Offering low 120mV dropout at 200mA load currents at each output, it has been designed and optimized to work with low-cost, small-capacitance ceramic capacitors. The AS1374 is available with pre-programmed output voltages between 1.2V and 3.6V (programmable in 50mV steps). The device uses an advanced architecture to achieve ultra low output voltage noise of 20uVRMS and a power supply rejection ratio of better than 85dB (@ 1kHz). Two active-high enable pins allow the possibility to switch on or off each output independently from each other.

The AS1374 requires only 1uF output capacitor for stability at any load. The device is available in a 6-bump WLP package. For further information about the features of this ultra low voltage noise low drop out regulator AS1374 please visit: http://www.austriamicrosystems.com/LDO/AS1374

About austriamicrosystems
austriamicrosystems is a leading designer and manufacturer of high performance analog ICs, combining more than 27 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 and mobile infotainment in its markets Communications, Industry & Medical and Automotive, complemented by its Full Service Foundry activities. austriamicrosystems is listed on the SIX Swiss Exchange in Zurich (ticker symbol: AMS). For more information, please visit www.austriamicrosystems.com