MIC5200-5.0BS TR

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MIC5200-5.0BS TR Application Field and Working Principle

The MIC5200-5.0BS TR (also known as MIC5200-5.0BS-TR) is a low dropout (LDO) linear voltage regulator designed for space constrained and/or portable applications. This device can provide up to 5A of continuous current, operating from input voltages of 2.1V to 5.5V and output voltages of 0.8V to 4.9V. The MIC5200-5.0BS TR is a down-scalable device, meaning it can detect a low-bus voltage and scale down its output current accordingly to protect upstream components from a power overload.

The MIC5200-5.0BS TR is built with a proprietary design featuring ultra-low quiescent current and fast transient response to maximize power efficiency, stability and system performance. This device also features improved output voltage accuracy, line transient response, low output voltage variation and wide temperature range operation, making it ideal for a wide range of applications including portable equipment, automotive, industrial and computer systems.

Application Field

The MIC5200-5.0BS TR is designed with a high accuracy voltage reference designed to ensure efficiency and stability operation, making it an ideal device for portable applications. It is well suited for applications that require low dropout, low noise, and high accuracy voltage regulation, such as routers, tablets, notebook computers, and mobile phones; as well as industrial, automotive, and portable instrumentation applications.

Working Principle

The MIC5200-5.0BS TR is a low dropout linear voltage regulator that operates with a linear voltage regulation principle. This device achieves low dropout by incorporating a highly efficient linear voltage regulator with a proven power MOSFET technology and advanced error amplifier circuitry. This combination ensures output accuracy and stability at low loads and a wide range of input voltage and temperature conditions.

The device uses a low resistance (p-channel) MOSFET switch to convert the input voltage to the regulated output voltage. The load regulation is accomplished by sensing the voltage drop across the MOSFET switch and adjusting the current delivered to the load in order to ensure that the output voltage is maintained at a constant level. This regulation process maintains the output voltage in the presence of varying load conditions, input voltages and even temperature changes. This feature allows the MIC5200-5.0BS TR to provide stable output voltage during speed, current and temperature changes.

The device also includes a low drop-out voltage over temperature control loop that extends the device\'s temperature range and ensures a safe, constant output voltage. The ultra-low quiescent current of the MIC5200-5.0BS TR makes it ideal for battery-powered applications as it ensures extended operating times in portable applications.

The MIC5200-5.0BS TR also features a built-in low-bus-voltage detector, which enables the device to detect an input voltage that is too low for the device\'s outputs and to reduce the output current accordingly. This feature is especially useful in applications where the input voltage is subject to large variations in voltage or current, such as in automotive and portable instrumentation applications.

In summary, the MIC5200-5.0BS TR is a high efficiency, low dropout linear voltage regulator that offers improved line and load transient response, low output voltage variation and wide temperature range operation. Its low quiescent current and built-in low-bus voltage detector make it ideal for a wide range of portable and fixed applications.

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