MC78M15BTG

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The MC78M15BTG is a member of the MC78M00 family of high current, low dropout, CMOS-based linear voltage regulators. It offers excellent line and load regulation over a wide input voltage and output voltage range, with an output current capability of up to 1.5A. The MC78M15BTG is available in three fixed output voltage versions: 5V, 8V, and 10V; and in two adjustable output voltage versions: 5 to 12V, and 8.5 to 14V. The regulator design includes accurate current limiting and thermal overload protection.

The MC78M15BTG is suitable for a wide range of applications, including telecom, distributed power, and general purpose supplies. It is well-suited for powering processors and other integrated circuits requiring high current with low dropout at the same time. The device is also suitable for automotive voltage regulation applications.

The transistor-like behavior of the MC78M15BTG provides superior load and line regulation over a wider input and output voltage range than other linear-type regulators. The efficiency of the device is also improved due to its CMOS construction. The MC78M15BTG can be used to generate multiple outputs from a single input, requiring only a few external components to perform the current steering and voltage conditioning functions.

The working principle of the MC78M15BTG is relatively simple. The device features an internal comparator, which serves as the basis for the regulation of the output voltage. When the voltage at the output drops below the reference voltage, current is sourced from the input. This causes an increase in the output voltage until the reference voltage is reached. Conversely, when the output voltage rises above the reference voltage, current is sunk to the output, causing the voltage to drop until the reference voltage is achieved.

The MC78M15BTG offers several features that make it a desirable choice for policy regulated applications. These include a low dropout voltage of 0.3V, low quiescent current of 4mA, and accurate current limiting capabilities. Additionally, the device offers programmable current limit and thermal limit functions, allowing the user to modify the regulator\'s protection and behavior as needed. The device also has an auto-restart safety feature which allows it to detect a fault condition and shut off the power automatically, and then restart upon recovery.

The MC78M15BTG is a cost-effective solution for a variety of power regulation requirements, and offers several features that make it an ideal choice for applications requiring reliable and accurate power delivery. With its versatile operating range, low dropout voltage, and high current capabilities, the MC78M15BTG can be used to provide efficient, low-cost power solutions across a variety of product designs and industries.

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