MIC5219-2.85YMM

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The MIC5219-2.85YMM is a linear voltage regulator designed to provide a regulated 2.85V output voltage. It’s used in power-sensitive applications requiring low-voltage output. Its high-output current makes it suitable for a wide range of applications, including computers, gaming systems, cell phones, and digital audio devices.

Pin Configuration

The MIC5219-2.85YMM is a two-pin Linear Regulatory in a 8-pin DIP format. It consists of an Input Current Range (VIN) and a regulated Output Voltage Pin (VOUT). The pin configuration is shown below:

Features & Specifications

• Input voltage range: +3V to +18V
• Output voltage: 2.85V ± 2.5%
• Output current: 1800mA
• Quiescent current: 25mA
• Drop-out voltage: 1.5V
• Output noise: 65uV (30Hz - 100kHz)
• Input capacitor: 0.47µF
• Output capacitor: 1µF

Applications & Working Principle

The MIC5219-2.85YMM is used in power-sensitive applications including computers, gaming systems, cell phones, and digital audio devices where low-voltage output is required. It has a high output current capability and can provide excellent current regulation under varying load conditions.

The MIC5219-2.85YMM works on the principle of linear regulation. That is, it regulates the output voltage by varying the amount of current that it allows to pass through the device. It works by comparing the input voltage and output voltage and adjusts the current accordingly to maintain a constant output voltage.

The device has excellent current regulation characteristics and can provide output voltage stability over a wide range of input voltages. The MIC5219-2.85YMM also includes input and output protection which can reduce the risk of damage in the event of an over-current or over-voltage condition.

Advantages & Disadvantages

The major advantage of the MIC5219-2.85YMM is its high output current capability and its ability to provide excellent current regulation under varying load conditions. It is also very efficient and has low quiescent current which can help to reduce power consumption in portable applications.

The primary disadvantage of the MIC5219-2.85YMM is its limited input voltage range. The device can only be used with a minimum of 3V and a maximum of 18V input. This could limit its use in some applications where a wider input voltage range is needed. Additionally, the device does have a relatively high drop-out voltage (1.5V) which can potentially lead to instability at lower input voltages.

Conclusion

The MIC5219-2.85YMM is an excellent option for applications requiring a linear voltage regulator with a low-voltage output. It has a high output current capability, excellent current regulation characteristics, and low quiescent current. It is also very efficient and has low drop-out voltage. The primary limitation of the device is its limited input voltage range. It is only suitable for applications where the input voltage is between 3V and 18V.

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