MC78L24ACPRAG

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The MC78L24AC/PRAG is a 3-pin, fixed-voltage, linear monolithic voltage regulator from the MC78LxA/C series in the MotoCMOS family of Motorola devices. It features an output voltage of 24V, an operating current of 0.5A and a maximum auxiliary current of 20mA. This module is available in through-hole and surface-mount packages, allowing for easy integration into a variety of surface-mount applications. The MC78L24AC/PRAG is designed to provide a low-voltage, low-current, and cost-effective solution for regulating and controlling power needs in a variety of applications.

The MC78L24ACPRAG module is suitable for use in commercial and industrial grade applications, such as medical and automotive requirements, as well as consumer products. It can be used as a replacement for other MC78LxA/C series components, in either standalone or applications requiring group power regulation. The use of the module eliminates costly component selection, component placement and component assembly, leading to reduced board space, reduced installed cost and improved component reliability.

Application Field

The MC78L24ACPRAG is a low-voltage, fixed-output linear regulator suitable for various applications including hand-held consumer devices, MCU-based systems and small-power applications. The MC78L24ACPRA has an excellent load regulation and low ripple performance. It also provides noise reduction and effective voltage regulation over the entire operating range. Additionally, the module features a power-up sequence which helps protect the load from over-voltage, under-voltage and inrush currents. Because the device is optimized for applications where space is a concern, it is ideal for embedded designs.

The MC78L24ACPRAG is designed to supply power in a wide range of operating conditions, including a low quiescent current for battery-powered applications, and high-current transient loads of up to 1A. The device has an adjustable voltage range of 5.75V to 36V and a differential input to output voltage of 2V. The device has a low dropout voltage at light loads, a low output resistance, and a high PSRR (<90dB). These benefits make the MC78L24ACPRAG a great solution in automotive, industrial, and consumer applications.

Working Principle

The MC78L24ACPRAG linear voltage regulator operates by taking an input voltage, passing it through a series of references known as Zener diodes, and then supplying the resulting regulated output voltage to the load. The Zener diodes act as a voltage reference, maintaining a constant output voltage, while the associated capacitors provide bypassing and filtering of the power rails. The load is connected to the regulator\'s output pin, while the input source is connected to the regulator\'s input pin.

The regulator is characterized by an internal feedback loop which compares the output voltage with an internal reference voltage, and adjusts the regulator’s output accordingly. If the output voltage rises above the reference voltage, the regulator increases the output voltage until it is equal to the reference voltage. Conversely, if the output voltage drops below the reference voltage, the regulator decreases the output voltage until it is again equal to the reference voltage.

The MC78L24ACPRAG also features a power-good flag which indicates when the regulated output voltage is within the acceptable operating range. This power good feature helps protect the load from over-voltage, under-voltage, and inrush currents; allowing the system to be safely used in a variety of applications.

The MC78L24ACPRAG is a reliable and cost-efficient voltage regulator which provides good noise reduction, excellent load regulation, and adjustable output voltage. The device\'s low quiescent current and high PSRR make it suitable for battery-powered and low power applications, while its adjustable voltage range and output current make it suitable for a wide variety of circuits. Additionally, the MC78L24ACPRAG is designed to integrate easily into most surface-mount applications, making it a great choice for embedded design.

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