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MIC5264-MGYML-TR Application Field and Working Principle

MIC5264-MGYML-TR is a low power, adjustable linear voltage regulator manufactured by Micrel Inc. This device is designed for a wide range of applications involving digital and analog circuits for industrial, automotive, communication, computing and home entertainment. It has a wide input voltage range from 15 V to 40 V, and can output a regulated voltage from 0.3 V to 40 V with its adjustable feature. It provides output current of up to 1000 mA, low noise and good transient performance.

Features:

• Wide Input voltage range from 15 V to 40 V
• Output voltage adjustable from 0.3 V to 40 V
• Output current up to 1000 mA
• Low Output noise & Good transient performance
• Over temperature protection
• Reverse bias protection against both input & output
• Low ground current

Working Principle:

The MIC5264-MGYML-TR is a voltage regulator device which uses a feedback control circuit to regulate and maintain a constant output voltage (Vo). This device consists of an adjustable error amplifier, an adjustable voltage reference (VREF) and an output buffer. The controlled output voltage is obtained from the difference between the reference voltage (VREF) and the output voltage (Vo).

The error amplifier compares the voltage reference at its non-inverting input with the output voltage at the inverting input. If the output voltage drops, the error amplifier increases the output drive of the output buffer and this increases the output voltage. Similarly, if the reference voltage rises, the error amplifier reduces the output drive of the output buffer and this reduces the output voltage. This feedback mechanism provides a regulated output voltage.

The MIC5264-MGYML-TR is capable of providing up to 1000 mA current with low ground current, reverse bias protection and thermal protection. The device also provides excellent transient performance and low output noise.

Applications:

• Industrial, Automotive and Communication Applications
• Computers and Home Entertainment Systems
• Digital and Analog Circuits
• Power Supplies and Battery Management
• High Voltage Bias and Level Shifting Applications

Conclusion:

The MIC5264-MGYML-TR is a widely used adjustable linear voltage regulator for a range of applications. This device provides a wide input voltage range, adjustable output voltage with output current up to 1000 mA, low noise and good transient performance. The device also provides reverse bias protection and thermal protection for safety. Thus, the MIC5264-MGYML-TR makes a great choice for power supplies, battery management and other applications requiring controlled, adjustable output voltage.

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