ONSEMI MC7812ACTG Linear Voltage Regulator 12V TO-220

The ONSEMI MC7812ACTG is a high-performance linear voltage regulator designed for a broad spectrum of electronic applications. It provides a reliable, fixed 12V output, making it an ideal solution for local, on-card regulation where stable power is critical. The device incorporates robust internal protection features, including current limiting, thermal shutdown, and safe-area compensation for the output transistor, ensuring safe and durable operation even under demanding conditions.

With adequate heat sinking, this regulator can deliver output currents exceeding 1.0A, offering substantial power for various circuits. While engineered as a fixed voltage regulator, it offers design flexibility and can be used with external components to create adjustable voltage and current supplies, catering to more specialised project requirements. Its design simplifies implementation as no external components are required for basic operation.

Key Features & Protections

• Internal Thermal Overload Protection: Safeguards the device from damage due to excessive heat.
• Internal Short-Circuit Current Limiting: Protects the regulator and the downstream circuit in the event of a fault.
• Output Transistor Safe-Area Compensation: Enhances the reliability of the output stage under varying load conditions.
• Tight Output Tolerance: The output voltage is offered in 1.5%, 2%, and 4% tolerance variants, allowing for selection based on precision requirements.

Housed in a standard TO-220 package with three pins for through-hole mounting, the MC7812ACTG is easy to integrate into prototypes and finished products alike. Its wide operating temperature range from 0°C to 125°C ensures performance stability across diverse environments. This component is a cornerstone part of the 7812 voltage regulator family, trusted for motor drive control and countless other electronic applications.