LM185H-1.2/NOPB Integrated Circuits (ICs)

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PMIC, or Power Management IC, is an electronic device that manages the power supply of an electronic system, such as a computer or embedded system. One type of PMIC is a voltage reference, which provides a precisely regulated voltage source that is used to reference and control the power supply of circuits. The LM185H-1.2/NOPB is an example of a voltage reference product, and it can be used in a variety of different applications and systems. This article will discuss the LM185H-1.2/NOPB voltage reference and its application fields and working principles.

The LM185H-1.2/NOPB is a 3-terminal bandgap adjustable shunt regulator. It provides an accurate reference voltage of 1.203V over a temperature range of -40°C to +125°C and reference voltage tolerance of ±5 mV at room temperature. The device is designed to have an extremely low temperature coefficient (±3 mV/°C) and low noise output, making it ideal for demanding applications, such as regulating precision electronic systems.

The LM185H-1.2/NOPB\'s primary application field is in analog-to-digital converters, although it can also be used to regulate voltage in other types of precision electronic systems. As a voltage reference, the device has the ability to provide a stable, precision voltage source in order to accurately measure and control signals. In addition to its use in analog-to-digital converters, the device can also be used as a reference to precisely control the output voltage of a buck converter, or act as an accurate voltage sensor in motor control and power supply systems.

In terms of working principle, the LM185H-1.2/NOPB is a type of differential amplifier with a current loop. The voltage reference is provided by a combination of the NPN Darlington transistor and the reference diode pair, which are connected in a current loop. The current loop allows for a precise and low-noise output voltage to be obtained, and also serves to reduce the output impedance of the current source. The voltage reference from the LM185H-1.2/NOPB is temperature invariant and has a low temperature coefficient, making it ideal for precision electronic systems.

The output of the LM185H-1.2/NOPB is regulated by the current source, which is connected to the input of the differential amplifier. When a voltage is provided at the input, the amplifier will amplify it and provide the output voltage that is required in order to regulate the load. The output of the LM185H-1.2/NOPB is then fed back to the input, and the voltage reference is maintained at a precise level.

In conclusion, the LM185H-1.2/NOPB is a voltage reference product that is designed for precision electronic systems. Its main application field is in analog-to-digital converters, although it can also be used to regulate voltage in other types of systems. The LM185H-1.2/NOPB is a differential amplifier with a current loop, which provides an accurate output voltage over a temperature range of -40°C to +125°C and reference voltage tolerance of ±5 mV at room temperature. The device is designed to have an extremely low temperature coefficient and low noise output, making it an ideal choice for precision systems.

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