MIC5210-3.3YMM

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The MIC5210-3.3YMM is a high performing, low-cost, precision voltage regulator from MIC. It is an ideal solution for voltage regulation in portable, power-sensitive applications such as laptops, tablets, and smartphones. The linear regulator is designed to deliver a precise output voltage of 3.3V with low dropout voltage over temperature. The MIC5210-3.3YMM also offers excellent transient response and power supply rejection.

Design Features

The MIC5210-3.3YMM are available in 8-pin MSOP, SOT-223, and SOT-223SF packages. The small form factor makes them suitable for portable devices and low-profile designs. The integrated overvoltage protection (OVP) helps protect the circuit from damage due to excessive input voltages. The OVP circuit is masked and will turn off the output when the input voltage exceeds 4.8V.

Application

The MIC5210-3.3YMM are suitable for precision voltage regulation in portable applications. It can be used to power microprocessors, memory, I/O buffers, bus termination, and other sensitive ICs in laptops, tablets, and smartphones. It can also be used in a wide range of industrial, automotive, and automotive-compliance designs.

Working Principle

The MIC5210-3.3YMM regulates the output voltage by monitoring the voltage drop across the internal N-channel FET. The device uses feedback to maintain a precise output voltage. When the voltage at the output falls below the set value, the internal N-channel MOSFET turns off and the output voltage is regulated by the internal PNP transistor. The PNP transistor will start to saturate when the output voltage exceeds the set value, limiting the amount of current that can flow to the output. This prevents the overvoltage protection circuit from triggering and ensures a safe, smooth output voltage.

Conclusion

The MIC5210-3.3YMM is an excellent choice for portable, power-sensitive applications, providing precise output voltages with low dropout voltage over temperature. The integrated OVP helps protect the circuit from excessive input voltages, while the small form factor makes them suitable for portable uses. The device uses an internal N-channel MOSFET and PNP transistor to regulate the output voltage, providing excellent transient response and power supply rejection.

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