LM4128CMFX-1.8/NOPB

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The LM4128CMFX-1.8/NOPB is a voltage reference commonly used in the PMIC – Voltage Reference application field. It is a monolithic voltage regulator design, which has been specifically engineered to deliver a low dropout voltage while requiring only a very low number of external components. This makes it ideal for use in high voltage and low-voltage applications.

Features

The LM4128CMFX-1.8/NOPB offers a wide range of features which make it an attractive choice for voltage reference applications. These include:

• A wide input voltage range from 4.5V to 16V;
• Low dropout voltage;
• High efficiency;
• High output current capability;
• Protection against reverse current flow;
• High temperature operation up to +85°C;
• Stable output voltage;
• Internal overvoltage protection;
• Good line and load regulation;
• Low output voltage ripple;
• Wide output voltage adjustments.

Working Principle

The LM4128CMFX-1.8/NOPB works through a feedback system where the output has a sensing element connected to it. This sensing element is connected to an error amplifier, which compares the feedback signal to a reference voltage. The error amplifier can then adjust the output voltage, based on the feedback signal. This allows for a more stable output voltage compared to a conventional voltage regulator.

The LM4128CMFX-1.8/NOPB also features a current limit feature which prevents it from being damaged in the event of a short circuit. This feature is particularly useful for applications requiring high current outputs. Additionally, the device is specifically designed to limit the input current, which can help protect against input surges and also improve the efficiency of the device.

Applications

The LM4128CMFX-1.8/NOPB is well suited for a range of applications requiring precision voltage control, including motor control, medical systems, telecom and power supplies. It is also suitable for use in low-power, high-voltage systems due to its low dropout voltage and the ability to adjust the output voltage. Additionally, its integrated current limit feature makes it an ideal choice for applications requiring high current outputs.

In addition, the LM4128CMFX-1.8/NOPB also offers reverse current protection, which is a particularly useful feature for applications requiring stable output voltage. This feature also allows for high-temperature operation, with the device able to withstand temperatures up to +85°C.

The LM4128CMFX-1.8/NOPB is also an efficient voltage reference and offers excellent line and load regulation. This can help improve circuit stability and performance, particularly in applications which make use of high voltage and low-voltage components.

Conclusion

The LM4128CMFX-1.8/NOPB is a versatile and efficient voltage reference well suited for use in a variety of applications requiring precision voltage control. It is a low-dropout voltage regulator with an integrated current limit feature which makes it an ideal choice for applications requiring high current outputs. Additionally, the device features reverse current protection, which helps increase system stability and immunity to input surge. This voltage reference also offers good line and load regulation and can operate in temperatures up to +85°C.

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