MIC5399-SGYMX-T5

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MIC5399-SGYMX-T5 Voltage Regulator: Application Field & Working Principle

The MIC5399-SGYMX-T5 voltage regulator is a linear voltage regulator that is used in a vast array of applications in the circuit design and power management world. The device is capable of regulating a wide input voltage range and can provide up to 90mA of current. It comes in a small 28-pin SSOP package and is capable of outputting adjustable power of up to 5.5V with 0.2% accuracy over line, load and temperature.

Application Field

The MIC5399-SGYMX-T5 voltage regulator is used in various applications in the field of power management design. These include:

• Uses for battery-powered systems, such as laptops, cell phones, and electronic book readers;
• USB wall adapters, computer motherboards, and auxiliary power supplies;
• Audio equipment, gaming systems, and home theatre systems;
• Medical equipment, industrial test equipment, and other communications equipment.

Working Principle

The MIC5399-SGYMX-T5 voltage regulator uses a linear control method to obtain a stabilized output voltage. This method functions as follows:

1. The device senses the output voltage of the system via its sense pin. This output voltage is compared with the set voltage.
2. The device amplifies the difference between the set voltage and the output voltage.
3. The amplified difference is then used to drive the base-emitter junction of a power transistor that is connected to the output.
4. This transistor further amplifies the difference, causing a current to flow through the regulator device.
5. This current is then used to either decrease or increase the output voltage, depending on the set voltage, in order to maintain the desired voltage.

The device is also fitted with over-voltage and over-current protection circuits that will shut off the device in case of an overload or short circuit, protecting against damages to the circuit.

Conclusion

The MIC5399-SGYMX-T5 voltage regulator is an excellent choice for applications in the field of power management. Its wide input voltage range and high output current capability makes it suitable for use in many different types of systems. The device\'s linear control method of obtaining a stable output voltage ensures reliable performance in all applications. With its added protection features, it offers design engineers a safe, reliable, and easy-to-use solution for their applications.

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