Confirm the installation was successful by searching for the voltage regulator inside the software environment.

: Typically located at C:\Program Files (x86)\Labcenter Electronics\Proteus 7 Professional\LIBRARY .

The internet hosts a wealth of shared resources for the Proteus community. Trusted sources often include:

The LM2596 is a highly popular step-down (buck) voltage regulator capable of driving a 3A load with excellent line and load regulation. For electronics engineers and hobbyists, simulating this component in Proteus before prototyping is essential to prevent hardware failures. Since the default Proteus library does not always include the specific LM2596 simulation model, downloading and installing a custom library is a necessary step. Why You Need an External LM2596 Proteus Library

Websites like The Engineering Projects often create and share free custom Proteus libraries for complex modules.