MIC5209-2.5YS

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The MIC5209-2.5YS is a member of a range of low power SMD voltage regulators, offering up to 250mA of output current and high performance from 2.25V to 15V. Equipped with a low dropout voltage, the MIC5209-2.5YS offers ideal dropout performance for mobile and automotive applications. Depending on the application the MIC5209-2.5YS can provide simple cost-effective power solutions for a wide variety of applications.

Application Field

The MIC5209-2.5YS is suitable for a wide variety of applications in both mobile communications, automotive and computer industries. It features a low output voltage accuracy of 0.8%, excellent line and load regulation, fast transient response and a high PSRR with low quiescent current.

The MIC5209-2.5YS can be used in many types of circuitry, such as USB ports and Li-ion batteries. It is typically used in mobile communications devices such as PDAs, smartphones and tablets, as well as automotive and computer applications.

Working Principle

The MIC5209-2.5YS is a low power SMD voltage regulator. It consists of an internal voltage reference, two error amplifier transistors, two series transistors, a temperature compensator and a pass element. The error amplifier works by comparing the output voltage to the desired voltage. If the output voltage differs from the desired voltage, then the output voltage is adjusted accordingly, by either increasing or decreasing the output current. The error amplifier also adjusts the output voltage for temperature change.

The pass element is the main switch that supplies the output voltage and the series transistors provides the correct current to the output. The temperature sensor compensates for the temperature variation in the output voltage. When the temperature increases, the output voltage increases and when temperature decreases, the output voltage decreases.

The MIC5209-2.5YS offers highly accurate output voltage regulation with low line and load regulation. Its low output voltage accuracy of 0.8% ensures a stable and efficient power supply. In addition, its fast transient response and high PSRR with low quiescent current provide increased system reliability and improved cost savings.

By combining its excellent performance and cost- saving features, the MIC5209-2.5YS is an ideal regulator for power solutions in a wide variety of applications.

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