Its tiny footprint (often 17x11mm depending on the specific V1.0 variant) makes it a "go-to" for hobbyists who find standard LM2596 boards too bulky.
) is placed immediately next to the IC input pin. This layout effectively suppresses incoming voltage spikes and attenuates high-frequency EMI generated by the switching cycle. 2. Switching and Control Loop Hw-133-v1.0 Datasheet