Step-down converter with low quiescent current

16th July 2019
Posted By : Alex Lynn
Step-down converter with low quiescent current

The TPS6282x from Texas Instruments is an easy-to-use synchronous step-down DC/DC converters family with a very low quiescent current of only 4µA. Based on the DCS-Control topology, it provides a fast transient response. The internal reference allows to regulate the output voltage down to 0.6V with a high feedback voltage accuracy of one percent over the junction temperature range of -40 to 125°C. 

The family devices are pin-to-pin and BOM-to-BOM compatible. The entire solution requires a small 470-nH inductor, a single 4.7-µF input capacitor and two 10-µF or single 22-µF output capacitor.

The TPS6282x includes an automatically entered power save mode to maintain high efficiency down to very light loads for extending the system battery run-time. The device features a Power Good signal and an internal soft start circuit. It is able to operate in 100% mode. For fault protection, it incorporates a HICCUP short circuit protection as well as a thermal shutdown. The device is available in a 6-pin 1.5 x 1.5-mm QFN package, offering the highest power density solution.

To learn more, click here.


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