The 7912 voltage regulator is a negative voltage regulator designed to provide a stable -12V DC output from a higher DC input voltage. It is part of the 79xx series of voltage regulators, which are widely used in electronics to supply negative voltage rails for circuits that require a regulated negative power source. The 7912 is commonly used in a variety of applications where negative voltage is needed, such as in dual power supply systems, operational amplifiers, and analog circuits.
Key Features of the 7912 Voltage Regulator:
- Output Voltage: Provides a fixed -12V DC output.
- Input Voltage Range: Typically requires an input voltage between -14V to -35V DC (depending on load conditions and heat dissipation).
- Current Rating: Capable of supplying up to 1A of output current, making it suitable for moderate power applications.
- Thermal Protection: Features built-in thermal overload protection, ensuring the regulator doesn’t overheat under excessive load conditions.
- Short Circuit Protection: Includes internal short-circuit protection, safeguarding both the regulator and connected components in case of a fault.
- Compact and Easy to Use: Available in a TO-220 package, the 7912 can be easily mounted to a heatsink and integrated into power supply circuits for negative voltage requirements.
- Stable Output: Maintains a steady -12V output regardless of fluctuations in input voltage or load changes, providing reliable power to circuits.
The 7912 voltage regulator is commonly used in applications that require a regulated negative voltage supply, such as dual-supply power systems, audio circuits, signal processing, and analog electronics. It is a simple and reliable solution for ensuring that negative voltage is delivered consistently and safely to sensitive electronic components.