LM4128DMFX-3.3/NOPB

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Introduction

The LM4128DMFX-3.3/NOPB is an integrated circuit power management integrated circuit (PMIC) voltage reference. The LM4128DMFX-3.3/NOPB is a single-channel precision voltage reference that offers temperature stability, accuracy, and low noise characteristics for a variety of applications. It provides a voltage reference of 3.3V and is offered in a 10-Lead MSOP package.

Application Field

The LM4128DMFX-3.3/NOPB is designed to be used in a variety of applications to lighten the load on the power source and provide higher accuracy in source voltage and output voltages. Its precise output voltage is ideal for digital and analog circuits. Its low noise and low temperature coefficient make it suitable for high performance systems. It features improved settling time, and is ideal for powering precision instrumentation, communication systems, and other analog and digital circuits requiring a precise and reliable voltage reference.

In addition, the LM4128DMFX-3.3/NOPB can also be used in medical devices, automotive, and military applications that require extreme accuracy and low temperature coefficient.

Working Principle

The LM4128DMFX-3.3/NOPB operates by providing a precision voltage reference output (3.3V) to a load, regardless of variations in input voltage, temperature, or load conditions. It is a two terminal device, typically connected to the power source directly. The LM4128DMFX-3.3/NOPB features an internal voltage reference, typically 2.5V, that is used to compare the voltage source with an internal reference. If the source voltage shifts or changes, the LM4128DMFX-3.3/NOPB adjusts its output voltage accordingly, providing a highly accurate and stable output. It is able to do this by using internal circuit components, such as zener diode, resistors, and transistors, to regulate its output. In addition, the LM4128DMFX-3.3/NOPB is designed to provide some protection against short circuit, reverse polarity, and over temperature conditions.

The LM4128DMFX-3.3/NOPB also has an Enable pin which allows the user to enable and disable the output. When the enable pin is high, the output is enabled, and when the enable pin is low, the output is disabled. This is especially useful in applications where it may be necessary to quickly turn on or off the voltage reference output.

Conclusion

The LM4128DMFX-3.3/NOPB is a basic voltage reference with excellent temperature stability, accuracy, and low noise characteristics. Its precise output voltage and fast settling time make it suitable for a variety of analog and digital circuits. Its ability to quickly enable or disable the output provides added flexibility for controlling the voltage output. Its use in medical, automotive, and military applications is a testament to its precise performance and reliability. For those looking for a basic and reliable voltage reference, the LM4128DMFX-3.3/NOPB is an excellent choice.

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