Date: 25/10/2010

Low dropout linear regulators from Plessey Semiconductors for POL applications

Plessey Semiconductors has released the PS2292X family of low dropout linear regulators for point of load applications. The devices operates from an input voltage of 1.7V. These regulators are targeted for industrial, medical, communication, computing and consumer markets. The new line of regulators offers fast transient response while maintaining high Power Supply Rejection Ratio (PSRR).

Other key features include ON/OFF control, output voltage accuracy of ±1%, power good with 500µs delay, ByPass pin for ultra-low noise, over temperature and over current protection.

"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