The MC79L24ACZ is a three-terminal negative voltage regulator manufactured by ON Semiconductor (formerly Fairchild). This regulator is designed to provide a fixed output voltage of -24V with a low dropout voltage. It is commonly used in a variety of electronic circuits to provide a stable negative power supply for various components and systems. The 'L' in the part number indicates a low current version and the 'Z' typically denotes a specific package type, in this case, likely a TO-92 package.

Applications

• Linear Power Supplies: Providing a regulated -24V output for various circuits.
• Instrumentation: Powering operational amplifiers and other analog circuits requiring a negative supply.
• Voltage Regulators: General-purpose voltage regulation in electronic devices.
• Battery-Powered Devices: Providing a stable negative supply in portable applications.
• Industrial Control Systems: Providing a stable negative voltage in industrial equipment.

Features

• Fixed Output Voltage: Provides a stable -24V output.
• Low Dropout Voltage: Operates with a small difference between input and output voltage.
• Internal Short Circuit Current Limiting: Protects the regulator from damage due to short circuits.
• Thermal Overload Protection: Shuts down the regulator to prevent overheating.
• Output Transistor Safe-Area Compensation: Enhances reliability under varying load conditions.

Benefits

• Simple to Use: Requires minimal external components.
• Reliable: Provides stable and reliable voltage regulation.
• Protected: Incorporates short circuit and thermal overload protection.
• Cost-Effective: A low-cost solution for negative voltage regulation.

Additional Details

The MC79L24ACZ is available in a TO-92 package. The input voltage range is typically -26.5V to -40V. The output current is typically 100mA. It's a three-terminal regulator, with pins for input, output, and ground. The requirement for external components is minimal, making it easy to integrate into a circuit. The built-in protection features guarantee reliable operation and prevent damage to the regulator and associated components. The device is often used to provide a stable negative supply for operational amplifiers, data converters, and other analog circuitry. The regulator offers excellent line and load regulation, which ensures a stable output voltage even under varying input voltage and load conditions. The low dropout voltage allows it to operate efficiently, even when the input voltage is just slightly higher than the output voltage. The internal short circuit current limiting mechanism shields the regulator from damage in the event of a short circuit on the output. Thermal overload protection deactivates the regulator if it gets too hot, preventing damage due to overheating. The output transistor safe-area compensation assists in maintaining stable operation under varying load conditions and temperatures.