The smart configuration pin is one of the primary contributors to the space savings and a key differentiator between the next generation devices and their predecessors. The MODE/S-CONF pin allows the user the flexibility to select the settings of four features (Internal or external feedback, switching frequency, FPWM/PFM, and output discharge) with only one resistor. In the previous generation, this flexibility is not supported. There are several advantages associated with this pin, too many to discuss in this document. To learn more about smart config pins and all of their design benefits, reference the document Multi-Function Pins for Easy Designing.