NCP431BISNT1G Integrated Circuits (ICs)

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Introduction

The NCP431BISNT1G is a PMIC (Power Management IC) Voltage Reference with a wide range of applications. It is a low-cost, low-power solution in the NXP Voltage Reference Family and is designed to accurately regulate voltage levels. The NCP431BISNT1G also offers excellent accuracy, low power dissipation, temperature coefficient, and a simple design.

Features

The following are some of the features of the NCP431BISNT1G:

• High accuracy: the NCP431BISNT1G has an output error of +/– 0.2%.
• Low power dissipation: the NCP431BISNT1G can operate with a quiescent current of 0.5mA or lower.
• Wide temperature range: the NCP431BISNT1G can operate from -40°C to 125°C.
• Low temperature coefficient: the NCP431BISNT1G\'s temperature coefficient is 0.6 ppm/°C.
• Pin compatible with other NXP voltage references.
• Robust design with integrated ESD protection.
• Low noise: the NCP431BISNT1G has a noise floor of 0.8µVrms.

Applications

The NCP431BISNT1G is an ideal choice for many different applications, such as:

• Power management systems.
• Battery management systems.
• Testing and measurement systems.
• Industrial equipment and process control.
• Personal electronics.

Working principle

The NCP431BISNT1G is an all-in-one design with a buck-regulator and an adjustable voltage reference. At the heart of the system, a voltage regulation loop controls the output voltage, compensates for load transients, and ensures the proper operation of the device even when the input voltage fluctuates. The voltage loop is composed of two stages:

• A Power MOSFET that buck regulates the input voltage.
• An adjustable voltage reference that controls the output voltage of the buck regulator.

When the input voltage varies, the load on the buck-regulator varies, and the adjustable reference provides a regulated output voltage by compensating for variations in load. The output voltage is adjusted by varying the voltage reference voltage using an external digital potentiometer. The NCP431BISNT1G also includes internal protection features for over-voltage, under-voltage, and over-current.

Conclusion

The NCP431BISNT1G is a PMIC (Power Management IC) Voltage Reference with a wide range of applications, due to its accuracy, low power dissipation, temperature coefficient, robust design, and wide temperature range. Its simple design makes it easy to use and allows for precise voltage regulation. It is an ideal choice for power management systems, battery management systems, testing and measurement systems, industrial equipment and process control, and personal electronics.

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