NCV2951ACD-3.3R2

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NCV2951ACD-3.3R2 is an integrated voltage regulator developed by ON Semiconductor. It is a linear voltage regulator that has many uses in the power management integrated circuit (PMIC), particularly in the field of voltage regulation. This article will explore the application field and working principle of the NCV2951ACD-3.3R2.

The NCV2951ACD-3.3R2 is an adjustable linear voltage regulator which is particularly well suited for use as a current limiter and a reference voltage regulator. It has an input voltage range up to 16V which ensures proper operation of the voltage regulation function. Additionally, it has a wide adjustability range of between 3.2V and 3.4V, which allows for a variety of applications such as computers, servers, and other electronic equipment. The operating frequency of the NCV2951ACD-3.3R2 is 2.25MHz, which provides an extremely fast response time, further enhancing its utility for use in a variety of power management applications.

The NCV2951ACD-3.3R2 is equipped with numerous features that make it an ideal linear voltage regulator for PMIC applications. The output resistance RQ is 0.02Ω and the output ripple rejection ratio is 80dB. Additionally, the NCV2951ACD-3.3R2 has a wide temperature range of -40°C to 125°C and is capable of operating on a wide variety of input voltages such as regulated dual-outputs, unregulated dual-outputs, regulated single-outputs, unregulated single-outputs, regulated quad-outputs, and unregulated quad-outputs. The NCV2951ACD-3.3R2 also has very low noise, with the typical quiescent current being 10µA.

The working principle of the NCV2951ACD-3.3R2 is relatively straightforward. It is a linear voltage regulator with an adjustable output voltage. When the input voltage is applied, it is compared to the adjustable voltage set by a voltage divider or a potentiometer. If the voltage exceeds the set voltage, the device will reduce the input voltage to the desired level by drawing a current to create a negative feedback loop. This process continues until the input voltage is equal to the set voltage, at which point the output voltage is stabilized. This process is known as a "closed-loop" feedback system and ensures that the output voltage remains constant even if the input voltage varies.

In conclusion, the NCV2951ACD-3.3R2 is an extremely well-suited integrated voltage regulator for use as a current limiter and reference voltage regulator in power management integrated circuits. Its wide input voltage range, high output ripple rejection ratio, and low quiescent current are some of its major features. Its closed-loop feedback system ensures that the output voltage remains stable even if the input voltage varies. Its wide temperature range, wide adjustability range, and fast response time further enhances its utility for use in many PMIC applications.

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