TI Release TPS62912, TPS62913 family of low-noise DC/DC Switching Regulators

October 22, 2020 Perry Cohen

Texas Instruments released the TPS62912 and TPS62913 family of low-noise DC/DC switching regulators with integrated ferrite-bead compensation. They offer low noise of 20 µVRMS for frequencies ranging from 100 Hz to 100 kHz and ultra-low output-voltage ripple of 10 µVRMS.

Traditional low-noise power supply architectures include such technology like DC/DC converters, low-noise LDO, and an off-chip filter, like a ferrite bead. Integrating ferrite-bead compensation allows the TPS62912 and TPS62913 to use the already present ferrite bead as a filter against high-frequency noise and reduce power supply output voltage ripple by upwards of 30 dB.

Further, both converters offer a power-supply rejection ratio of 65 dB at up to 100 kHz. They also enable spread-spectrum frequency modulation to advance attenuate radio-frequency spurs. In addition to this, the TPS62912 and TPS62913 allow synchronization to an external clock, providing the ability to meet signal-to-noise ratios and spurious-free dynamic range targets.

Featuring a peak efficiency of 97%, the converters allow for engineers to design for noise filtering without an LDO. This reduces power losses by up to 76% and 1.8 W in analog front-end (AFE) designs and 1.5 W in designs using a wideband ADC.

For more information, visit www.ti.com/TPS62912-pr or www.ti.com/TPS62913-pr

About the Author

Perry Cohen

Perry Cohen, associate editor for Embedded Computing Design, is responsible for web content editing and creation in addition to podcast production. He also assists with the publication’s social media efforts which include strategic posting, follower engagement, and social media analysis. Before joining the ECD editorial team, Perry has been published on both local and national news platforms including KTAR.com (Phoenix), ArizonaSports.com (Phoenix), AZFamily.com, Cronkite News, and MLB/MiLB among others. Perry received a BA in Journalism from the Walter Cronkite School of Journalism and Mass Communications at Arizona State university. He can be reached by email at <a href="mailto:perry.cohen@opensysmedia.com">perry.cohen@opensysmedia.com</a>. Follow Perry’s work and ECD content on his twitter account @pcohen21.

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