LM4140BCMX-2.0/NOPB

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The LM4140BCMX-2.0/NOPB is an integrated circuit (IC) dedicated to power management, specifically a voltage reference or “super-regulator”, developed and distributed by Texas Instruments. By connecting a voltage rail to the LM4140BCMX-2.0/NOPB IC, it will provide a stable output voltage reference well beyond the typical accuracy of alternative options utilizing an external resistor divider, regardless of the input voltage’s level or changes in the environment’s temperature. Since the output reference of the LM4140BCMX-2.0/NOPB is adjustable, it is able to fulfil a variety of design needs, making it suitable for a broad range of applications from industrial control, automotive systems and robotics to medical hardware.

The LM4140BCMX-2.0/NOPB IC is composed of two main building blocks, a voltage reference and an operational amplifier (op-amp). The voltage reference features an output voltage range of between 0-3.3 volts, which is stabilized by its internal temperature compensation, and it has adjustable output current limits ranging from 2.5mA to 135 mA. The op-amp, on the other hand, buffers the voltage reference and its output is capable of driving hundreds of milliamps at its full range of 3.3 volts.

The circular CDIP-8 package of the LM4140BCMX-2.0/NOPB includes two constructions, each with its own pinning, to permit proper connections to the device. Its proper working temperature extends from -40°C to 85°C and its maximum operating frequency should not exceed 200kHz.

In order to use the LM4140BCMX-2.0/NOPB, an 18.43V power supply is connected to the IN pin (1) and the N/C pin (8) of the IC, then the ADJUST pin (4) is set to the desired output voltage level. Once the voltage level is established, the voltage reference can be used in two ways: it can be used as a voltage reference in a feedback loop system to provide a constant reign on the output voltage and it can be used in conjunction with an op-amp or amplifier to provide a voltage source. For the most part, the LM4140BCMX-2.0/NOPB is used in systems that require precise and stable output voltages.

Overall, the LM4140BCMX-2.0/NOPB is a voltage reference IC that offers a wide range of application fields, including industrial control, automotive systems, robotics and medical hardware, due to its excellent ability to operate under variable temperature and its ability to provide adjustable current limits in a wide range. By connecting an adjustable voltage to its inputs and setting the reference voltage in its output, the LM4140BCMX-2.0/NOPB IC is a very desirable voltage reference.

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