The L7905CV is a voltage regulator IC with a TO-220 package. It is a monolithic integrated circuit that is specifically designed to provide a stable, regulated 5V DC voltage output from a variable input voltage. The L7905CV can be used in a variety of applications where a stable 5V DC voltage is required, such as power supplies, battery chargers, and DC-DC converters. It has a wide input voltage range and can regulate input voltages from 6V to 32V. The L7905CV is a three-terminal regulator, meaning it has a positive input, a negative input, and an output. It is commonly used in electronic circuits where a stable 5V voltage is required to power sensitive electronic components.

The L7905CV is of three-terminal negative regulators is available in TO-220, TO-220FP  D²PAK packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation; furthermore, having the same voltage option as the L78xx positive standard series, they are particularly suited for split power supplies. If adequate heat sinking is provided, they can deliver over 1.5 A output current