The TPS6290x switching frequency can be set to 1MHz or 2.5MHz using the smart configuration pin. This is useful to provide the user the flexibly to set the switching frequency that fits the applications. To improve the efficiency and reduce switching losses of the converter, 1MHz can be selected, with the trade-off of using a larger inductor. This selection is ideal for applications that may not have huge space constrains, but efficiency or thermals are the main concern. For applications needing the smaller inductor, optimized overall solution size, and can afford a slight drop in efficiency, 2.5MHz is the ideal choice.