MIC5210-5.0YMM

MIC5210-5.0YMM Application Field and Working Principle

The MIC5210-5.0YMM is a high performance, low dropout linear voltage regulator that operates from a single power supply. It is designed to provide up to 5A of regulated output current and is available in industry standard TO-263 and DFN package products. The MIC5210-5.0YMM requires only 1.8V minimum input voltage while providing an additional 2V of regulated output voltage, giving it an impressive efficiency of 95%.

The MIC5210-5.0YMM has integrated reverse output and over-voltage protection, as well as output voltage temperature compensation, which helps to ensure consistent performance. The device sports a wide range of output voltages, including 0.9V, 1.0V, 1.5V, 2.5V, 3.3V, and 5.0V, allowing for versatile designs. It also features an adjustable version for fine tuning the output voltage. Furthermore, the MIC5210-5.0YMM boasts a low quiescent current of only 1µA and an excellent output noise of only 3 mA P-P.

Working Principle

The MIC5210-5.0YMM voltage regulator works by effectively managing the output current. The device utilizes an output resistor network (R1 and R2), with a low output impedance (typically 100m ohms), to control the output current. This results in a low power dissipation in the device, coupled with excellent regulation. The output voltage is monitored using a feedback network and compared to a reference voltage, then adjusted to ensure the output voltage stays within ±2% tolerance.

The device also uses a gain stage to adjust the output voltage. This is accomplished by using a second feedback loop and a gain amplifier. The gain is used to fine tune the output voltage and minimize errors. Additionally, the device utilizes a frequency compensation network (R3, C1, and C2) to reduce the amount of noise and instability in the system.

The MIC5210-5.0YMM also features built in overvoltage protection, which shuts down the device in the case of an over voltage to protect downstream components from damage. Additionally, the device features a reverse output protection feature, which will prevent damage to the device if the output is connected to a negative voltage.

Conclusion

The MIC5210-5.0YMM is a single output linear voltage regulator that is designed to provide up to 5A of regulated output current. It features an adjustable version that allows for fine tuning the output voltage, reverse output and over-voltage protection, and output voltage temperature compensation. In addition, the device boasts a low quiescent current and excellent output noise, making it ideal for applications where low power consumption and consistent performance are essential.