The L79L12ACZ-TR from STMicroelectronics is a fixed output, three-terminal negative voltage regulator designed to provide a consistent -12V output for a wide range of applications. This component is part of the L79 series, which is known for its reliability and efficiency in delivering stable voltages. It is particularly suitable for use in battery-powered devices, high-efficiency power supplies, and other electronic circuits requiring a negative voltage rail.

Key Features

• Output Voltage: The device provides a fixed output voltage of -12V, which is essential for maintaining a stable power supply in electronic circuits.
• Output Current: It can deliver up to 100mA of output current, making it suitable for low-power applications.
• Thermal Overload Protection: The L79L12ACZ-TR is equipped with thermal overload protection that shuts down the regulator to prevent damage if the temperature exceeds safe operating limits.
• Short Circuit Protection: In the event of a short circuit, the device offers short circuit protection, which helps to safeguard the regulator and the connected components from potential damage.
• Package Type: It comes in a TO-92 package, which is widely used for small-signal transistors and offers a compact footprint for space-constrained applications.
• Temperature Range: The operating junction temperature range is from -40°C to 125°C, allowing for stable operation in a wide range of environmental conditions.

Applications

The L79L12ACZ-TR voltage regulator is versatile and can be used in various applications, including:

• Power supplies for analog and digital circuits that require a stable negative voltage reference.
• Battery-powered equipment where power efficiency is crucial.
• Automotive applications where robustness and reliability are important.
• Instrumentation and control systems that demand precise voltage regulation.

In summary, the L79L12ACZ-TR from STMicroelectronics is a robust negative voltage regulator that offers protection features and consistent performance, making it a reliable choice for designers looking to incorporate a stable -12V power supply into their electronic projects.