Texas Instruments unveils smallest 6-A, 17-V step-down DC/DC converter

Single-chip SWIFT(TM) point-of-load device for telecom and computing systems supports up to 17 V; 60 percent smaller package than multi-chip converters

DALLAS, June 15 /PRNewswire/ -- Extending its family of easy-to-use SWIFT(TM) power management integrated circuits (ICs), Texas Instruments (TI) (NYSE: TXN) today introduced the industry's smallest single-chip, 6-A, 17-V step-down synchronous switcher with integrated FETs. The high-performance TPS54620 is 60 percent smaller than today's multi-chip converters, resulting in a complete 6-A power solution less than 195 mm2 -- one-fourth the size of a postage stamp. The 1.6-MHz monolithic DC/DC converter supports input voltages from 4.5 to 17 V, allowing it to manage space-constrained 5-V and 12-V point-of-load designs, such as a wireless base station or high-density server. See: www.ti.com/tps54620-pr.

"As telecommunications designs become more dense and complex, they need more integrated, highly efficient power management devices that support a 12-V power rail," said Steve Anderson, senior vice president of TI's Power Management business unit. "We continue to develop smaller, more robust SWIFT converters, so designers can more quickly develop differentiated products for the market."

In addition to size improvements, the TPS54620 offers a high degree of performance and reliability, such as a highly accurate voltage reference with +/- one percent accuracy over temperature. Achieving a 95-percent power conversion efficiency and a 25 percent lower Rds(on) than previous 6-A SWIFT devices, the converter easily powers deep sub-micron TI digital signal processors (DSPs) and other embedded processors, such as FPGAs and ASICs.

Additional features and benefits of the TPS54620

    --  The SWIFT device supports a 6-A continuous, 8-A peak load current, and a
        power stage input voltage range from 1.6 V to 17 V.
    --  1.6-MHz synchronous converter integrates two high-efficiency MOSFETs (26
        milliOhms and 19 milliOhms) and comes in a space-saving, thermally
        enhanced 3.5 mm x 3.5 mm monolithic QFN package that minimizes
        footprint.
    --  Synchronized switching frequency from a master clock eliminates beat
        noise in sensitive data acquisition circuitry.
    --  Feature-rich IC includes power-good, enable and tracking pins for
        sequencing.

Broadest range of monolithic and multi-chip solutions

TI provides the broadest range of step-down converters in the industry, including its SWIFT and discrete DC/DC converters. In addition to the TPS54620, TI recently introduced its new TPS54418 4-A switcher with integrated FETs, which supports input voltages from 2.95 V to 6 V. The device switches up to 2 MHz, can be synchronized and achieve greater than 95-percent power efficiency in a small 3 mm x 3 mm QFN package. See: www.ti.com/tps54418-pr.

Availability and pricing

The TPS54620 is available in volume now from TI and its authorized distributors in a 3.5 mm x 3.5 mm QFN package. Suggested resale pricing is $1.95 in 1,000-unit quantities. The TPS54418 has a suggested resale price of $2.15 in 1,000-unit quantities.

Find out more about TI's SWIFT portfolio by visiting links below:

    --  Order TPS54620 evaluation modules and samples: 
        www.ti.com/tps54620-prbl.
    --  SWIFT DC/DC step-down converter portfolio:  www.ti.com/swift-pr.

-- TI's simple-to-use, downloadable SwitcherPro(TM) software design tool: www.ti.com/switcherpro-pr.

About Texas Instruments

Texas Instruments (NYSE: TXN) helps customers solve problems and develop new electronics that make the world smarter, healthier, safer, greener and more fun. A global semiconductor company, TI innovates through design, sales and manufacturing operations in more than 30 countries. For more information, go to www.ti.com.

Trademarks

SWIFT and SwitcherPro are trademarks of Texas Instruments. All trademarks and registered trademarks are property of their respective owners.

Web site: http://www.ti.com/




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