onsemi

MC79M12BT

MC79M12BT Description

The MC79M12BT is a fixed-output linear regulator designed for applications requiring a stable -12V output at a current of 500mA. Manufactured by onsemi, this regulator is part of the Power Management Integrated Circuits (PMIC) category. It features a single regulator with a negative output configuration, making it suitable for various electronic systems that require a reliable negative voltage supply.

MC79M12BT Features

• Output Type: Fixed, ensuring a stable -12V output voltage.
• Current - Output: Capable of delivering up to 500mA, making it suitable for moderate power applications.
• Number of Regulators: Single regulator design simplifies circuit design and reduces component count.
• Output Configuration: Negative output, ideal for applications requiring negative voltage rails.
• Voltage Dropout (Max): 1.1V at 500mA (Typ), ensuring efficient operation even at lower input voltages.
• PSRR: 60dB at 120Hz, providing excellent noise rejection and stable output voltage.
• Protection Features: Over Current and Over Temperature protection, safeguarding the regulator and connected circuits from damage.
• Mounting Type: Through Hole, offering robust mechanical stability and ease of integration into PCB designs.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), suitable for a wide range of environmental conditions.
• Package: Supplied in a Tube package, facilitating easy handling and storage.
• Product Status: Obsolete, but still available for existing designs and legacy systems.
• REACH Status: REACH Unaffected, ensuring compliance with environmental and safety regulations.
• ECCN: EAR99, indicating compliance with export control regulations.
• HTSUS: 8542.39.0001, facilitating accurate customs classification.

MC79M12BT Applications

The MC79M12BT is ideal for a variety of applications where a stable -12V supply is required. Its key applications include:

• Telecommunications Equipment: Providing stable power supply for negative voltage rails in telecommunication systems.
• Industrial Control Systems: Ensuring reliable power supply for control circuits and sensors requiring negative voltage.
• Medical Devices: Offering stable power for medical equipment that requires precise voltage regulation.
• Automotive Electronics: Suitable for automotive applications where negative voltage supply is necessary for certain components.
• Consumer Electronics: Ideal for consumer devices that require a negative voltage supply for specific functions.

Conclusion of MC79M12BT

The MC79M12BT is a robust and reliable linear regulator designed for applications requiring a stable -12V output. Its fixed output voltage and 500mA current capability make it suitable for a wide range of moderate power applications. The inclusion of over current and over temperature protection features ensures the longevity and reliability of the regulator, while its through-hole mounting type provides mechanical stability and ease of integration. Despite being marked as obsolete, the MC79M12BT remains a viable option for existing designs and legacy systems, offering a stable and efficient power solution.