LM4140BCMX-2.5/NOPB

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Power management integrated circuits (PMIC) play a vital role in making it possible for electronic devices to perform essential functions accurately and efficiently. Voltage references are one of the most common types of PMIC, and the LM4140BCMX-2.5/NOPB is a popular example. This voltage reference is highly reliable and accurate, making it suitable for applications that require high-precision voltage references.

A voltage reference is a device that creates an output voltage that is stable and accurate compared to an input reference. Voltage references are typically used in digital controller systems to ensure accurate and reliable voltage readings. In the case of the LM4140BCMX-2.5/NOPB, it produces an output voltage of 2.5V, which is accurate within a 0.2% tolerance of the expected value. This makes it ideal for applications where the accuracy of the reference voltage is essential.

The LM4140BCMX-2.5/NOPB is designed for use in a variety of applications, including medical imaging, industrial automation, and portable consumer electronics. Its features make it suitable for use in these applications, as it offers low power consumption and high accuracy at an affordable price. In addition, the LM4140BCMX-2.5/NOPB is available in a Surface Mount Technology (SMT) package, which makes it easy to install. The device is RoHS compliant and has a typical operating temperature range of -40 to 85 °C.

In terms of operation, the LM4140BCMX-2.5/NOPB voltage reference acts as a current source, providing a minimum current of 15mA at the output. The input is connected to a precision reference voltage, which is usually generated by an external device. The LM4140BCMX-2.5/NOPB then uses this reference voltage to generate a precise output voltage. It does this by using a voltage divider circuit, which takes in the reference voltage and divides it down to the desired output voltage. This Divider consists of two resistors; the feedback resistor and the feedback capacitor, which form a resistor-capacitor (RC) network.

The LM4140BCMX-2.5/NOPB also includes various built-in protection functions. The device can withstand short-circuit conditions and can detect a short-circuit on its output and shut down the device immediately. It also includes an Overvoltage Protection function, which prevents the output voltage from increasing above the programmed voltage level. The device also includes a Thermal Shutdown function, which monitors its internal temperature and shuts down the device if it exceeds an internal temperature limit. Finally, there is an Active Discharge function which ensures that the output voltage is reduced quickly and safely when the device is turned off.

In conclusion, the LM4140BCMX-2.5/NOPB is an excellent choice for applications that require a precise and stable voltage reference. Its low-power consumption, high accuracy, and wide operating temperature range make it suitable for a variety of applications. Its built-in protection functions ensure that it can operate reliably, even in challenging environments. Finally, the SMT package and RoHS compliance make it easy to install and ensure maximum compatibility with other electronics.

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