NCV4269AD250G

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PMIC (Power Management IC) Voltage Regulators Linear is a kind of power management IC, characterized by good linear regulation performance, wide adjustability and low noise performance. In this article, we will talk about NCV4269AD250G application field and working principle.

NCV4269AD250G Overview

NCV4269AD250G is an advanced low quiescent current 2.5V linear voltage regulator designed for applications that require low noise and power consumption. It is designed with an adjustable output range from 0.8V to 2.5V, with a 3A maximum load current and a low quiescent current of 130uA typical. It offers a feedback diode for protection against reverse voltage, a reverse current or an inductive transients. It integrates 0.87mΩ shunt regulator and its enable pin that allows the shutdown current to be reduced to 10uA typical.

NCV4269AD250G Application

NCV4269AD250G is primarily used in low noise and current consumption application. It can be used in digital and analog circuits, such as radio receivers, RF receivers, digital circuitry, analog power supplies, etc. It is sometimes used to replace the traditional discrete linear regulator when space is limited or the circuit performance cannot be compromise. It is also can be used in battery driven applications, such as wireless charging, notebook computer, tablets, and so on.

NCV4269AD250G Working Principle

NCV4269AD250G working is based on the theory of linear regulators. It eliminates the need of switching operation and reduce the number of its parasitic capacitances, thus providing superior performance in terms of power consumption, line/load regulation and output voltage noise. It features a wide range of adjustable output voltage, accommodates input voltage shift up to 12V and an enable pin allows the regulator to be enabled/disabled.

NCV4269AD250G series is a monolithic linear regulator, which is composed of an n-type of element differential amplifier circuits and reference voltage sources. The differential amplifier compares the regulated output voltage feedback with a reference voltage and drives a pass element to regulate the output voltage. This pas element is controlled by the error amplifier and its output voltage is also feed back to the error amplifier. The cycle repeat as the error amplifier adjusts its output voltage until the output voltage and the reference voltage match.

In conclusion, NCV4269AD250G is a power management IC designed to provide low noise and power consumption, and has wide adjustable output voltage range and low quiescent current. It is widely used in digital and analog circuits that require good line/load regulation and high accuracy output voltage. It features integrated 0.87mΩ shunt regulator and its enable pin that allows the shutdown current to be reduced to 10uA typical, it is also ideal for battery operated applications such as wireless charging, notebook computers, etc.

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