MIC39500-1.8BT

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MIC39500-1.8BT Application Field and Working Principle

Introduction
MIC39500-1.8BT is a three-terminal linear voltage regulator specifically designed for high-performance, low-power applications using a 9-V power supply. This regulator\'s wide operating temperature range (–40°C to +125°C) makes it suitable for various applications, including desktop and notebook computers, industrial power systems, automotive, and telecommunications. It is designed to fully meet the needs of low-voltage, high-current applications.

Application Field
MIC39500-1.8BT is primarily used as a power supply for power-hungry circuits that require high-performance, low-power operation. Its wide operating temperature range makes it suitable for various applications. It can be used in desktop and notebook computers, industrial power systems, automotive, telecommunications, and more.

Features
The MIC39500-1.8BT offers several features and benefits, including a low dropout voltage of 1.8V, a typical power supply rejection ratio (PSRR) of 50dB at 1kHz, a low quiescent current of 10 μA, an output voltage accuracy of ±1% over a wide temperature range, over-temperature protection, reverse-current protection, and output current limiting.
It also has minimal board space requirements and is designed to operate within a wide supply-voltage range (4.5V to 9V). The device is offered in 8-pin, thermally enhanced, and smallDFN packages, making it suitable for applications that require space-constrained solutions.

Working Principle
The MIC39500-1.8BT is a three-terminal linear voltage regulator that uses a series of transistors, resistors, and capacitors to regulate the output voltage and current supplied to the load. The input voltage is supplied to the device’s pins and the regulator compares the output voltage to a reference voltage, which is held constant at a regulated level. If the output voltage deviates from the reference voltage, the internal control circuit adjusts the output voltage and current supplied to the load to maintain the desired output voltage.

Conclusion
The MIC39500-1.8BT is a three-terminal linear voltage regulator designed for low-power, high-performance applications. Its wide operating temperature range makes it suitable for a wide range of applications, including desktop and notebook computers, industrial power systems, automotive, and telecommunications. It provides minimal board space requirements and is available in 8-pin, thermally enhanced, and smallDFN packages. The regulator uses a series of transistors, resistors, and capacitors to regulate the output voltage and current supplied to the load, and the reference voltage is kept constant at a regulated level.

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