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Plessey Semiconductors introduces ultra-low noise, high current linear regulators with input voltages as low as 1.7V

21st October 2010

Plessey Semiconductors

ES Admin

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Plessey Semiconductors today announced the release of the PS2292X family of low dropout linear regulators for point of load applications. The devices are part of a high current, single supply LDO family that operates from an input voltage as low as 1.7V. Targeted for industrial, medical, communication, computing and consumer markets, the regulators are an ideal choice for low voltage post regulation applications. The new line of regulators offers fast transient response while maintaining high Power Supply Rejection Ratio (PSRR).

“Many new point-of-load applications are beginning to use 1.8V as a main input power distribution rail while providing output voltages from 0.5 to 1.25V to power low voltage processor and micro-controller cores,” said Dr. Keith Strickland, Technology Director. “Designed on Plessey’s proprietary state of the art bipolar process, this line of Linear Regulators offers superior power density and industry leading low-noise performance.”

The PS2292X family is comprised of the PS22921, PS22922, PS22923, PS22924 and PS22925 detailed in the following matrix:

Part number Output Current Package
PS22921 0.5A SOT23-5 and SOIC-8
PS22922 1.0A SOIC-8
PS22923 1.5A SOIC-8
PS22924 2.0A SOIC-8
PS22925 3.0A D2PAK

Other key features include ON/OFF control, output voltage accuracy of ±1%, power good with 500µs delay, by-pass pin for ultra-low noise, over temperature and over current protection. With a unique circuit trimming approach, the regulators offer custom delivery of voltages in 100mV increments in the range of 0.5V to 5V within four weeks of receipt of order.