onsemi

MC79M05BT

MC79M05BT Description

The MC79M05BT is a fixed output linear regulator designed for applications requiring a stable -5V supply voltage with a maximum output current of 500mA. Manufactured by onsemi, this regulator is housed in a TO220AB package, making it suitable for through-hole mounting. Despite its obsolete status, the MC79M05BT remains a reliable choice for power management solutions due to its robust design and performance characteristics.

MC79M05BT Features

• Output Type: Fixed at -5V, ensuring a stable supply voltage for various electronic circuits.
• Current - Output: Capable of delivering up to 500mA, making it suitable for applications with moderate power requirements.
• Number of Regulators: Single regulator design simplifies circuit design and reduces component count.
• Output Configuration: Negative output voltage, ideal for applications requiring a negative supply rail.
• Voltage Dropout (Max): 1.1V at 500mA (Typ), allowing for efficient operation even at lower input voltages.
• PSRR: 66dB at 120Hz, providing excellent noise rejection and ensuring a clean output voltage.
• Protection Features: Over-current and over-temperature protection safeguard the regulator and connected circuits from damage.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), ensuring the component is suitable for a wide range of environmental conditions.
• Package: Supplied in a tube package, facilitating easy handling and storage.
• Mounting Type: Through-hole mounting provides a secure and reliable connection, suitable for both prototyping and production environments.
• 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.

MC79M05BT Applications

The MC79M05BT is well-suited for a variety of applications where a stable -5V supply is required. Some specific use cases include:

• Analog Circuits: Providing a clean and stable negative supply voltage for operational amplifiers, ADCs, and DACs.
• Communication Systems: Ensuring reliable power supply for RF and baseband components that require a negative voltage rail.
• Industrial Control: Supplying power to sensors and actuators in industrial automation systems.
• Medical Devices: Offering a stable power source for medical equipment that requires precise voltage regulation.
• Consumer Electronics: Used in legacy systems and retrofits where a negative supply voltage is necessary.

Conclusion of MC79M05BT

The MC79M05BT is a versatile and reliable linear regulator that provides a stable -5V output with a maximum current of 500mA. Its robust design, featuring over-current and over-temperature protection, ensures safe operation in a variety of applications. Despite being marked as obsolete, the MC79M05BT remains a valuable component for power management solutions, particularly in applications requiring a negative supply voltage. Its through-hole mounting and tube packaging make it easy to integrate into both prototype and production environments. For engineers and designers looking for a dependable power management solution, the MC79M05BT is a solid choice.