DALLAS, April 3, 2012 /PRNewswire/ -- Today's noise-sensitive medical, industrial and telecom designs need smooth, quiet power sources to operate at peak performance. Texas Instruments Incorporated (TI) (NASDAQ: [ TXN ]) today introduced a new class of voltage regulators designed to deliver the industry's lowest-noise 1-A switching power supply without sacrificing efficiency and power performance. The TPS54120, the first in TI's family of QuietSupply™ regulators, reduces switching noise by up to 99 percent, compared to other power conversion devices, and helps maximize the performance of precision data converters and amplifiers and sensitive clock distribution circuits used in applications, such as telecommunications, test equipment, and high-end audio and video equipment. For more information, visit: [ www.ti.com/tps54120-pr ].

Key features and benefits of TPS54120

99-percent noise reduction: 9 uVRMS at 100 Hz to 100 kHz, and 17 uVRMS at 100 Hz to 1 MHz
Performance: High power supply rejection ratio (PSRR) of 83 db at 10 kHz, 70 dB at 100 kHz
Design flexibility: Synchronizable to external clock from 200 kHz to 1.2 MHz
Wide input voltage range of 4.5 V to 17 V, adjustable output of 0.8 V to 6.0 V

Quiet power management

In addition to the TPS54120, TI also offers a large selection of low dropout linear regulators (LDOs) with low noise, wide input voltage and high PSRR, such as the [ TPS7A8101 ], [ TPS7A3001 ], [ TPS7A4901 ] and the ultra-low noise [ LP5900 ] and [ LP8900 ] regulators. Complete reference designs and evaluation modules are also available to speed time to market.

Availability and pricing

The TPS54120 is available in volume now from TI and its authorized distributors in a thermally enhanced 3.5-mm x 5.5-mm, 24-pin QFN package, and has a suggested resale price of $1.95 each in 1,000-unit quantities. The easy-to-use [ TPS54120EVM-103 ] contains all of the external components required for a low noise, 1-A solution with internal thermal and current limit shutdowns, power good output monitor, tracking and enabling/disabling circuitry.

Find out more about TI's [ LDO portfolio ], application notes and evaluation modules:

New [ LDO Quick Reference Guide ], including National and TI combined portfolio of LDOs.
Vast library of easy-to-use [ application design notes ] using TI linear regulators.
[ Video collection ] about TI LDOs
Join the TI E2E™ Power Community to ask questions and help solve problems with fellow engineers: [ www.ti.com/powerforum-pr ].

About Texas Instruments

Texas Instruments semiconductor innovations help 90,000 customers unlock the possibilities of the world as it could be – smarter, safer, greener, healthier and more fun. Our commitment to building a better future is ingrained in everything we do – from the responsible manufacturing of our semiconductors, to caring for our employees, to giving back inside our communities. This is just the beginning of our story. Learn more at [ www.ti.com ].

Trademarks

TI E2E and QuietSupply are trademarks of Texas Instruments. All registered trademarks and other trademarks belong to their respective owners.

SOURCE Texas Instruments Incorporated

[ Back to top ]

N@N

TI quiets the noise with innovative 1-A power converter

TI quiets the noise with innovative 1-A power converter

New QuietSupplya" step-down supply reduces switching noise by 99 percent, increases system performance in noise-sensitive designs