MC79L15ACLPE3

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The MC79L15ACLPE3 is an adjustable and fixed voltage regulator designed by ON Semiconductor. It is a 15 V linear voltage regulator and it is part of the PMIC – Voltage Regulators – Linear family. The device is capable of supplying up to 800mA of current and is suitable for applications that require an efficient, low power and low voltage dropout linear regulator.

The MC79L15ACLPE3 is able to provide an output voltage that is adjustable between 1.5V and 15V. It utilizes an internal PNP pass transistor and operates from an input voltage range between 5V and 25V. It is offered in an industry standard TO-220 package with a low thermal resistance enabling efficient heat dissipation. It is suitable for automotive and other power sensitive applications due to its low quiescent current and low dropout voltage.

The device also includes various features for safety, protection, and reliability. It has short circuit protection, and is able to sustain heavy load transients of up to 1 ms. It also has full internal protection against output failure, over temperature, and over-current conditions. The input voltage-to-output voltage differential of the MC79L15ACLPE3 is typically 2V, which ensures minimum power loss when operated in series. It also features an adjustable ON/OFF control pin which allows for proper sequential start-up when multiple regulators are used within the same system.

The working principle behind the MC79L15ACLPE3 is fairly simple. It operates by controlling the output voltage by passing a current through the internal pass transistor. This pass transistor is controlled by a voltage divider created by two external resistors. The voltage divider translates the output voltage level into a reference voltage. This reference voltage is compared with a constant built-in voltage reference, and the resulting difference is used by the error amplifier to control the output voltage level.

The MC79L15ACLPE3 is a feature-rich device that provides an ideal linear voltage regulation solution for a variety of applications. It is especially suitable for automotive, computing, industrial and telecommunication applications that require high efficiency and high reliability. The device is also suitable for applications with limited space due to its small footprint.

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