MC78L18ACPRM

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The MC78L18ACPRM is a three-terminal linear voltage regulator, part of the PMIC - Voltage Regulators - Linear family. It is specifically designed to provide industry-leading low-dropout (LDO) voltage regulation with improved UVLO, dropout voltage and quiescent current supplies. This voltage regulator also has an improved PSRR performance

The MC78L18ACPRM has a 0.95V to 1.50V output voltage range with a typical input current of about 10mA. The device is available in three package options, the SOT-223, SOT-89, and MSOP-10. The device has a variety of features, such as input under-voltage protection, temperature compensation, adjustable output voltage, and adjustable output current limiting. These features make it suitable for a variety of applications.

The MC78L18ACPRM is an ideal choice for medium current applications, such as charging Li-Ion batteries, led or incandescent lamps, portable consumer electronics, and automotive applications. It is also suitable for use in consumer and commercial audio amplification, industrial processing, and analog television systems. This voltage regulator can also be used in effect-pedal power supplies, solar cell power sources, stepping motors, digital to analog converters, as well as other linear voltage regulator needs.

The MC78L18ACPRM operates on a linear control principle, which is based on the output current transistors being placed in series with the input voltage. The transistors are controlled by the voltage that is across them, which is influenced by the current regulating circuit. This regulating circuit is usually a combination of resistors, diodes and transistors, which act to correct the output voltage according to the input voltage, current and other parameters.

The linear design of the MC78L18ACPRM makes it relatively immune to ripple and interference generated by external sources. This provides a cleaner output in many applications where such ripple can be a problem. The output voltage can also be easily adjusted using the two external resistors, which makes it more suitable for prototyping and custom power solutions than switching regulators.

The MC78L18ACPRM is far less susceptible to input voltage fluctuations, allowing it to maintain a stable output over a wide input voltage range. This makes it suitable for a wide variety of applications, especially those with unstable or fluctuating input voltage sources.

The MC78L18ACPRM is an excellent solution for many applications where low-dropout, reliable and efficient linear power regulation is required. Its superior dropout voltage and quiescent current, combined with its adjustable output current and voltage make it an ideal choice for small and medium current applications such as LED/incandescent lamp drivers, automotive systems, and portable electronics.

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