onsemi

MC79L12ACDR2

MC79L12ACDR2 Description

The MC79L12ACDR2 is a linear voltage regulator IC manufactured by onsemi, designed to provide a fixed output voltage of -12V with a maximum output current of 100mA. This single-output regulator features a negative output configuration and is packaged in an 8-pin SOIC package. Despite being classified as obsolete, the MC79L12ACDR2 remains a viable option for certain applications due to its unique features and performance characteristics.

MC79L12ACDR2 Features

• Output Type: Fixed, providing a stable -12V output voltage.
• Current - Output: 100mA, suitable for low-power applications.
• Number of Regulators: 1, a single-output regulator.
• Output Configuration: Negative, ideal for applications requiring a negative voltage supply.
• Voltage Dropout (Max): 1.7V @ 40mA (Typ), ensuring efficient operation even under high load conditions.
• PSRR: 42dB (120Hz), providing excellent power supply rejection ratio for stable operation.
• Protection Features: Over Temperature and Short Circuit, safeguarding the device from potential damage.
• Operating Temperature: 0°C ~ 125°C, suitable for a wide range of operating environments.

MC79L12ACDR2 Applications

The MC79L12ACDR2 is ideal for applications requiring a stable -12V output voltage, such as:

1. Audio Equipment: Providing a negative voltage supply for audio amplifiers and preamplifiers.
2. Industrial Control Systems: Powering low-power circuits in industrial control panels and systems.
3. Telecommunications: Supplying power to low-power circuits in telecommunications equipment.
4. Automotive Electronics: Providing a stable voltage supply for various automotive electronic systems.

Conclusion of MC79L12ACDR2

While the MC79L12ACDR2 is classified as obsolete, it remains a viable option for applications requiring a stable -12V output voltage. Its unique features, such as a negative output configuration and excellent PSRR, make it suitable for a variety of applications, including audio equipment, industrial control systems, telecommunications, and automotive electronics. Although it may not be the most advanced option on the market, the MC79L12ACDR2 offers a reliable and cost-effective solution for certain low-power applications.