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MIC94355-OYMT-T5 application field and working principle

The MIC94355-OYMT-T5 is a fixed-output, 3-terminal, low dropout (LDO) linear voltage regulator. It is a low-power device that has built-in protection against current and thermal overload. This device is suitable for applications requiring fixed voltages up to 5V and current up to 1A.

Overview

This device is built on a proprietary bi-polar process with current and thermal overload protection. Its output voltage accuracy is trimmed to within ±1%, allowing it to provide stable and accurate power for a wide range of applications. The MIC94355-OYMT-T5 also features a minimum dropout voltage of 150mV, a fast start-up time, and a low quiescent current of 650µA typical.

Applications

The MIC94355-OYMT-T5 is ideal for providing regulated voltages to a wide range of applications. It is used in a variety of consumer electronics, computer peripherals and automotive electronics, including smartphones, laptops, computers, and televisions. In addition, it is well suited for small battery-powered systems such as portable music players, digital cameras and radio receivers.

Working principle

The MIC94355-OYMT-T5 works by comparing the output voltage with a reference voltage and then adjusting the output voltage of the regulator accordingly. The device uses an internally-set voltage reference and a series-pass element to produce an output voltage. A current sensing circuit monitors the output current, and will shut down the device if the output current exceeds a certain threshold. Additionally, an over-temperature protection circuit will shut down the device if the junction temperature of the regulator exceeds a certain value.

The MIC94355-OYMT-T5 is designed to provide a steady and reliable output voltage, regardless of changes in load or input voltage. This allows for improved performance and longer operating life for the system it is powering. The combination of low quiescent current, low dropout voltage, and fast start-up time makes the device an excellent choice for applications which require efficient and reliable power.

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