LM78L12ACZ/LFT4

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PMIC (Power Management Integrated Circuits) Voltage Regulators Linear, such as the LM78L12ACZ/LFT4, are mainly used to regulate the amount of current passing through a circuit. The LM78L12ACZ/LFT4 is a 12V fixed linear voltage regulator specifically designed to supply a regulated output voltage, and features stable performance, high power efficiency, and simple external current limiting. It has a wide range of applications, such as personal computers, automobiles, medical equipment, TV systems, telecoms and gaming devices.

The LM78L12ACZ/LFT4 is a 3-terminal device with an operating range of 10V up to 24V and a 12V fixed output voltage. The device is designed to regulate the current passing through the device to help protect against short-circuits, over-voltage and under-voltage conditions. The device also has a wide range of input and output voltage ranges. It also provides protection against reverse-polarity, current overloading, and thermal overload.

The working principle of this linear voltage regulator is the same as that of other standard voltage regulators. It employs a series of transistors to regulate the output voltage by controlling the amount of current through the device. In the case of the LM78L12ACZ/LFT4, the device is configured to regulate the voltage at 12V, which is the typical output voltage for this type of regulator.

The LM78L12ACZ/LFT4 contains two transistors, the outer one is an N-channel transistor and the inner one is a P-channel transistor. Three terminals are provided on the device. The first terminal is connected to the input voltage. The second terminal is connected to a reference voltage (VREF), whose voltage is slightly higher than the output voltage. The third terminal is connected to the output voltage. When the two transistors are both turned on, current flows from input to output and the output voltage becomes regulated. The same current causes the voltage at the reference voltage (VREF) to reduce slightly, which causes the inner P-channel transistor to turn off, stopping the current from flowing. The output voltage is then stabilized at the predetermined voltage.

The LM78L12ACZ/LFT4 also contains an internal current limiter that is designed to protect the regulator against excessive current. This current limiting feature helps protect the device and the circuit from short-circuiting, over-voltage and under-voltage conditions. If the current exceeds the device\'s maximum rating, the current limiter will shut the device off and protect it against damage.

The LM78L12ACZ/LFT4 is a highly reliable, easy-to-use linear voltage regulator that can be used in a variety of applications. It provides a stable output voltage and is protected against short-circuits, over-voltage and under-voltage conditions. While the current limiting feature helps protect the device from excessive current, it makes the LM78L12ACZ/LFT4 well-suited for applications that require high efficiency and reliable performance.

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