MIC39501-1.8WT

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MIC39501-1.8WT Application Field and Working Principle

The MIC39501-1.8WT is a linear voltage regulator that is commonly used in applications ranging from portable electronics with limited space and energy sources to high-power equipment such as DC-DC converters, motor control circuits and digital equipment. This voltage regulator is designed to deliver up to 1.8A of continuous output current, making it suitable for many different types of applications. In this article, we will discuss the application field and working principle of the MIC39501-1.8WT.

Application Field

The MIC39501-1.8WT is designed for use in portable electronic applications, DC-DC converters, motor control circuits, and digital equipment that require stable and precise output voltages. The wide input and output voltage ranges make it suitable for a wide variety of applications. This voltage regulator is capable of operating either in step-up or step-down mode and provides high efficiency and power density, which makes it suitable for a variety of low-power and high-power electronics. Additionally, the device is designed to be low-noise and reliable, making it suitable for automotive and consumer electronics applications as well.

The MIC39501-1.8WT is also suitable for use in distributed power systems. This voltage regulator can provide stable and precise output voltages in distributed power systems without compromising efficiency. Furthermore, it can be an ideal choice for powering high frequency, low-power LED lighting applications. The device can also be used for generating clean, noiseless 12V, 5V and 3.3V power rails for a variety of automotive, data-processing, and communications applications.

Working Principle

The MIC39501-1.8WT is a three-terminal linear voltage regulator that utilizes a two stage architecture. The device contains a low-current, low-dropout (LDO) linear regulator and a high current LDO linear regulator connected in parallel. The first stage is a low-current, low-dropout (LDO) linear regulator that utilizes current source control to maintain a stable output voltage. This stage provides the initial regulation and provides very low output noise.

The second stage is a high-current LDO linear regulator that utilizes a power MOSFET to efficiently transfer power from the input to the output of the device. This stage provides a low dropout voltage and high output current capability to the device, which makes it suitable for many different types of applications, such as distributed power systems. The voltage at the output is controlled by the MOSFET, allowing the device to accurately regulate and maintain a stable output voltage.

The MIC39501-1.8WT has an integrated over-current protection feature that senses high output current and shuts down the device to prevent damage to the circuit. It also has an integrated thermal protection feature that shuts down the device when the junction temperature of the die exceeds the safe operating limits to prevent heat damage. The device has a wide input voltage range of 4V to 36V, making it suitable for many different types of applications. Furthermore, the device also has a very high output voltage accuracy of 0.2%, ensuring that your applications maintain tight load regulation.

The MIC39501-1.8WT is capable of withstanding high transient voltage surges, which eliminates the need to place an external surge protector. The device also has a fast transient response, making it suitable for use in high frequency switching applications. Lastly, the device is RoHS compliant, making it suitable for use in lead-free electronics.

Conclusion

In this article, we have discussed the application field and working principle of the MIC39501-1.8WT, a three-terminal linear voltage regulator that is designed for use in many different types of applications. The device is designed to provide up to 1.8A of continuous output current and offers a wide input and output voltage range, fast transient response, over-current and thermal protection features, and high voltage accuracy. Furthermore, the device is RoHS compliant, making it suitable for use in lead-free electronics.

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