Stackable DC/DC buck converter maximizes power density in high-current FPGA and processor power supplies

New SWIFT™ converter from TI delivers up to 160 A of output current, and bolsters thermal performance for communications, enterprise and industrial applications

DALLAS, March 9, 2020 — (PRNewswire) —  Texas Instruments (TI) (Nasdaq: TXN) today introduced a new 40-A SWIFTTM DC/DC buck converter, offering first-of-its-kind stackability of up to four integrated circuits (ICs). The TPS546D24A PMBus buck converter can deliver up to 160 A of output current at an 85°C ambient temperature – four times more current than competing power ICs. The TPS546D24A has the highest efficiency of any 40-A DC/DC converter, allowing engineers to reduce power loss by 1.5 W in high-performance data center and enterprise computing, medical, wireless infrastructure, and wired networking applications. For more information, see www.ti.com/TPS546D24A-pr.

Shrink the power supply while optimizing thermal performance
Solution size and thermal performance are two key considerations for engineers designing power supplies for modern field-programmable gate arrays (FPGAs). With its unique stackability, the TPS546D24A buck converter addresses both. It comes with a PMBus interface that offers a selectable internal compensation network, enabling engineers to eliminate as many as six external compensation components from the board and shrink the overall power-supply solution size by more than 10% (or 130 mm2) for higher-current FPGA/application-specific ICs (ASICs) when compared to discrete multiphase controllers.

In addition, the TPS546D24A achieves a low thermal resistance of 8.1°C per watt and runs 13°C cooler than competing DC/DC converters, improving reliability in electronics that operate in hot, harsh environments, such as baseband units and automated test equipment.

Improve efficiency at high switching frequencies
Using DC/DC converters with high switching frequencies allows engineers to shrink the footprint of the power supply and facilitates the design of high-bandwidth systems. The TPS546D24A offers a switching frequency of 1.5 MHz, enabling engineers to deliver 40 A of current per IC while reducing inductance and capacitance by one-third compared to similar converters. To mitigate the negative impact on efficiency, which is typically associated with high switching frequencies, the TPS546D24A features a 0.9-mΩ low-side MOSFET, achieving 3.5% higher efficiency than competing DC/DC buck converters. For more details on optimizing thermal performance at high switching frequencies, read the technical article, " SoC power design: 3 steps to a thermally optimized power supply."

Meet rigorous voltage accuracy requirements for FPGA power supplies
FPGAs are used in a variety of applications, but engineers designing power supplies for FPGAs are often surprised by the voltage accuracy required to support FPGA DC rails. The TPS546D24A makes it easier for engineers to meet these rigorous voltage tolerance requirements by offering an output voltage error of less than 1%. Furthermore, its extensive PMBus command set and pin-strapping configurability allow engineers to monitor current more accurately for fault reporting and to avoid overdesign. To learn more about designing power supplies for FPGAs, read the application note " Achieving Better than 1%  Output Voltage Accuracy with TPS546D24A."

Availability and pricing
The TPS546D24A is now available from TI and authorized distributors in a 5-mm-by-7-mm, 40-pin quad flat no-lead (QFN) package. Pricing starts at US$4.27 in 1,000-unit quantities. The TPS546D24AEVM evaluation module is available on TI.com for US$199. Pin-to-pin- and footprint- compatible, preproduction TPS546B24A (20-A) and TPS546A24A (10-A) DC/DC converters are available now, only from TI. Pricing starts at US$3.25 and US$2.49 in 1,000-unit quantities, respectively.

Additional design support

About Texas Instruments
From connected cars and intelligent homes to self-monitoring health devices and automated factories, Texas Instruments Incorporated (TI) (Nasdaq: TXN) products are at work in virtually every type of electronic system. With operations in more than 30 countries, we engineer, manufacture, test and sell analog and embedded semiconductor chips. Our employees, about 30,000 worldwide, are driven by core values of integrity, innovation and commitment, and they work every day to shape the future of technology. Learn more at www.ti.com.

Trademarks
SWIFT is a trademark of Texas Instruments. All other trademarks belong to their respective owners.

Cision View original content to download multimedia: http://www.prnewswire.com/news-releases/stackable-dcdc-buck-converter-maximizes-power-density-in-high-current-fpga-and-processor-power-supplies-301019290.html

SOURCE Texas Instruments

Contact:
Company Name: Texas Instruments
Shaina Rabhan, Golin, 469-865-4001
Email Contact Olga Malone,Texas Instruments, 214-479-8851
Email Contact
Web: http://www.ti.com
Financial data for Texas Instruments




Review Article Be the first to review this article
Aldec

Featured Video
Jobs
Senior Account Managers… FORMAL VERIFICATION...VALLEY for EDA Careers at San Jose, California
Senior Software Engineer for EDA Careers at San Jose, California
Sr. Application Engineer for Mentor Graphics at Fremont, California
Upcoming Events
Linley Spring Processor Conference at Virtual Event CA - Apr 6 - 9, 2020
Embedded Vision Summit 2020 at Santa Clara Convention Center Santa Clara CA - May 18 - 21, 2020
Sensors Expo & Conference at McEnery Convention Center 150 W. San Carlos Street SAN JOSE CA - Jun 22 - 24, 2020
Nanotech 2020 Conference and Expo at National Harbor MD - Jun 29 - 1, 2020



© 2020 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering TechJobsCafe - Technical Jobs and Resumes GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise