MP20051DQ-LF-Z

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MP20051DQ-LF-Z is one of Monolithic Power System’s (MPS) low-dropout linear voltage regulator, which provides a smooth and reliable power source to electronic circuits while ruling out any short-circuit or over-voltage incidents. It provides a constant output current up to 200mA with a dropout voltage of 1.3V to 3.2V for applications that need a greater power supply range. The MP20051DQ-LF-Z also comes with a number of other features like thermal protection, current limit protection and a maximum output voltage of 7.5V.

Application Field

This regulator is designed for a wide range of applications, ranging from Li-Ion batteries in the portable electronics sector, to circuit boards in medical electronics. It can also be used in automotive systems and industrial automation applications. As it is capable of withstanding high-temperature environments and voltage fluctuations, it is an ideal solution for many industrial applications.

In the portable electronics sector, the MP20051DQ-LF-Z can be used in mobile phones, media players, digital cameras and other devices that rely on battery or direct AC power sources. In these devices, the regulator ensures steady power delivery and reduces energy waste. The device also provides a low drop-out voltage, allowing it to be used in applications requiring higher output voltage.

In the automotive sector, this regulator is used to provide a reliable power source to electronic systems. It can be used in electronic fuel injection systems, power-steering systems and other automotive safety systems, providing a steady output voltage and protecting circuits from over-voltage and other potential damage.

The MP20051DQ-LF-Z can also be found in medical electronics, providing a reliable and stable power source for medical monitoring systems and other medical devices. It is also used in industrial automation applications, providing an efficient and cost-effective solution for controlling motors and other power-consuming systems.

Working Principle

Similar to other linear voltage regulators, the MP20051DQ-LF-Z operates based on the principle of controlling the voltage regulated across a series of resistive elements. It regulates the output voltage by utilizing two series of transistors, namely the pass transistor and the control transistor, to form a linear regulator circuit. The ratio of resistances between the pass and control transistors is used to control the output voltage.

When the output voltage is too high, the control transistor applies more voltage to the pass transistor which reduces its conductive ability, thus reducing the output voltage. Conversely, when the output voltage is too low, the control transistor applies less voltage to the pass transistor which increases its conductive ability, thus increasing the output voltage.

In addition to the linear regulator design, the MP20051DQ-LF-Z also comes with several integrated safety features like thermal protection and overload protection that ensure a safe and reliable power supply. The device also comes with an adjustable current limit, allowing users to adjust the maximum output current for different applications.

The MP20051DQ-LF-Z is an excellent solution for applications requiring a low-dropout, linear voltage regulator. With its integrated safety features and wide application range, it is ideal for a variety of electronic systems in the automotive, medical, industrial and portable electronics sectors.

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