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DC/DC converter highlights light-load efficiency

Posted: 06 Nov 2008 ?? ?Print Version ?Bookmark and Share

Keywords:DC/DC converter? light load efficiency? energy saving?

Texas Instruments Inc. has expanded its SWIFT DC/DC converters with a new 65V input, 1.5A output step-down switcher with integrated FET that achieves significant energy savings in light-load efficiency.

The wide-input converter helps saves up to 25 percent of board space compared to competitive wide-input voltage solutions and eases design in industrial and automotive applications.

The TPS54160 non-synchronous buck's 3.5Vto 65V input voltage range provides designers flexibility in applications with input transients. By leveraging TI's innovative Eco-mode light-load switching technique, the converter is able to achieve a low 116?A operating current and 1.3?A shutdown current, resulting in longer system run-times and a more efficient power system design.

In addition, the converter's high switching frequency range of 300kHz to 2.5MHz reduces the size of the output inductors to save board space. The TPS54160's frequency fold-back and thermal shutdown features allow the converter to protect itself during an overload condition.

The TPS54160 also has an integrated track pin that simplifies various sequencing schemes and a clock pin that reduces noise by synchronizing its switching frequency to an external clock.

TI's SWIFT DC/DC converters serve a broad range of applications, such as telecom, computing, industrial and consumer point of load applications with input voltage ranges as wide as 65V and output currents as high as 14A.

The TPS54160 is available today from TI and its authorized distributors in 10-pin MSOP PowerPAD packaging. Suggested resale pricing in 1,000-unit quantities is $2.40. Reference designs, evaluation modules and the SwitcherPro software tool for the TPS54160 are also available online at

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