Several engineering communities provide these files. Look for "LM2596 Library for Proteus" on platforms like:
Proteus does not include LM2596 in its default libraries. You need a third‑party library or create your own. lm2596 proteus library download free top
Avoid "free file converter" sites that ask for a credit card or survey completion. The LM2596 Proteus library is a small file (under 500KB) and should never require payment. Several engineering communities provide these files
Would you like a quick guide to in Proteus from scratch? lm2596 proteus library download free top