L79L12ACZ

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Integrated circuit (IC) or PMIC (Power Management IC) is a component that helps to efficiently regulate the amount of power consumption in a given equipment according to the amount of available power sources. Voltage regulators are a subclass of PMICs that command and control the correct voltages for effective and efficient operations of a device.

The L79L12ACZ voltage regulator is a popular linear voltage regulator usually employed to maintain stable and proper voltages in many electronic systems. The device offers incredibly low dropout voltage (dropping to only 1.2V) and it is rated to provide an output current of up to 1.5A. It features an extremely low temperature coefficient, has a maximum operating temperature of 125°C, and its operating voltage range corresponds to 4.5V to 18V. Additionally, the L79L12ACZ is built with a minimum of external components to reduce its size, saving lots of space in the circuit board.

The simplest application field of the L79L12ACZ is to provide exact and stable voltage to different sections of a system. Since its features enable it to be equipped with the minimum required external components, it is possible to use the device to support very low voltage systems such as 3.3V. The regulator also has two enable pins to enable or disable its output with an external signal or a microcontroller. Thus, it can act as both a linear regulator and a switch.

The basic working principle behind this voltage regulator is extremely simple. A voltage divider network at the input side of the regulator reduces the input voltage to a level that the circuit can handle. Then, an error amplifier amplifies the input error differential voltage to adjust the output current and obtain the desired output voltage. After it, an output stage is employed to provide the necessary amount of current to the connected load.

Overall, the L79L12ACZ is an excellent linear voltage regulator convenient for a variety of applications. Its features make it extremely easy to use since it requires no extra circuitry. The device can also be used in high-temperature environments and it permits superior current output and very low dropout voltage.

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