MC79L12F-TP Integrated Circuits (ICs)

The MC79L12F-TP is a three terminal negative voltage regulator from STMicroelectronics. It belongs to the PMIC (Power Management IC) family of solutions and is a voltage regulator from the Linear subcategory. It has a fixed output voltage of -12 volts and an adjustable output voltage ranging from -1.25V to -14 volts. It is employed for regulating low currents and it is ideal for medium and low power electronics applications. It is available in a mini-molded package.

The MC79L12F-TP voltage regulator has several application fields. Its main application is for providing medium and low power regulation for a wide range of electronics equipment such as home and office machines, computer peripherals, audio equipment, measurement and test devices, video equipment, communications and entertainment appliances, toys and games, automotive systems, and medical devices. It is also used for supplying regulated voltage and current to certain circuit boards.

The MC79L12F-TP works on the principle of a shunt regulator. This type of voltage regulator works by dissipating excess voltage in order to maintain a constant output voltage. It also works as a current regulator in that it stops the current flowing through the circuit it is connected to if the current exceeds a predetermined value. This type of voltage regulator is less efficient than voltage regulators based on the series-regulator principle, but however it is usually less expensive.

The MC79L12F-TP shunt voltage regulator is designed to provide a regulated output voltage that is independent of input voltage and load variations. It has a wide operating range with a minimum of negative voltage supply levels of -15 V, a maximum input voltage level of -30 V, and a maximum output current of 500 mA. It also has temperature stability, a temperature range of -40 °C to +85 °C and overvoltage protection.

In summary, the MC79L12F-TP is a three terminal voltage regulator with a negative output voltage of -12V which belongs to the category of PMICs (Power Management ICs). It is meant for regulating medium and low power applications and it provides regulated output voltage independent of input voltage and load variations. It has a wide operating range and provides temperature stability, temperature range, and overvoltage protection. It works on the shunt regulator principle and is less efficient than the series-regulator principle.