AN79L05M Application Field and Working Principle

The AN79L05M is a three-terminal linear regulator with the ability to deliver up to 1.5A of output current. It has a very low ground-current consumption and very good regulation characteristics. The AN79L05M is a widely used part for computer power supplies, automotive applications, industrial equipment and many more.

The main application fields of the AN79L05M are:

• Power supply designs
• Automotive applications
• Telecommunication equipment
• Battery powered systems
• Computer power supplies
• Industrial equipment
• Medical instrumentation

The working principle of the AN79L05M is based on linear regulation. It has two internal power transistors. One transistor is configured as a fixed-current source, and the other as a variable voltage regulator. By using the feedback loop, the voltage applied at the output is compared to a reference voltage and the current is regulated accordingly. The output current of the regulator is controlled by the amount of current supplied by the fixed-current source.

The AN79L05M also features several protective features such as over-current and over-voltage protection. The device features an internal thermal shut-down circuitry which helps to protect the device in case of overload. Additionally, it features a shutdown pin which can be used to disables the device if necessary.

The AN79L05M is the perfect choice for applications that require a small, low power and reliable linear regulator. It is available in a variety of packages and is one of the most popular linear regulators on the market currently. The device is also very cost effective and offers excellent price/performance ratio.