MC7924CD2TG

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The MC7924CD2TG is a 3-terminal negative low-drop voltage regulator integrated circuit that is part of Monolithic Power System\'s Linear voltage regulators family. This negative voltage regulator comes in an TO-220-7 package and has an operating temperature ranging from -40°C to +125°C.

The regulator’s output is adjustable over a 1.25V to -18V range. It includes protection against excessive output current, thermal shutdown, and reverse-battery operation. Furthermore, the MC7924CD2TG includes short-circuit current limit and an input voltage range up to -25V. The regulator provides up to 1.5A of output current and soft-start capability or in rush current limitation.

The main purpose of the MC7924CD2TG is to provide negative regulated voltage of a magnitude different from the unregulated source, usually for electronic circuits. Due to their integrated design and low cost, negative voltage linear regulators have become increasingly popular for use in AC-DC power supplies and DC-DC power converters. Moreover, these integrated circuits are also used in automotive applications, including engine control units (ECUs), throttle actuators, and lighting controllers. Besides, its adjustable output voltage provides flexibility for design and is suitable for various applications such as televisions, video equipment, computers, peripherals, and instrumentation.

The MC7924CD2TG supplies negative regulated voltage in a similar way to its positive counterpart, the MC7912CD2TG. It is a linear voltage regulator that uses a linear pass element to reduce the unregulated voltage to the desired output voltage level. The regulator includes a pass element such as a transistor, MOSFET, or operational amplifier and several other components. The pass element acts as a variable resistor, and it is controlled by an error amplifier that drives the pass element to adjust the output voltage. It employs a negative-feedback loop to sense the output voltage and compare it with a reference voltage, finally ensuring an accurate output voltage regardless of load changes.

In summary, the MC7924CD2TG is a linear negative voltage regulator ideal for use in AC-DC power supplies, DC-DC power converters, automotive applications, and other applications such as televisions, video equipment, computers, peripherals, and instrumentation. It offers protection against excessive output current, thermal shutdown, and reverse-battery operation, as well as short-circuit current limit and an input voltage range up to -25V with up to 1.5A of output current and soft-start capability or inrush current limitation.

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