NCV4274CST33T3G

Series:	Automotive, AEC-Q100
Part Status:	Active
Output Configuration:	Positive
Output Type:	Fixed
Number of Regulators:	1
Voltage - Input (Max):	40V
Voltage - Output (Min/Fixed):	3.3V
Voltage - Output (Max):	--
Voltage Dropout (Max):	--
Current - Output:	400mA
Current - Quiescent (Iq):	250µA
Current - Supply (Max):	35mA
PSRR:	60dB (100Hz)
Control Features:	--
Protection Features:	Over Temperature, Reverse Polarity, Short Circuit
Operating Temperature:	-40°C ~ 150°C

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Introduction

The NCV4274CST33T3G is a linear voltage regulator that belongs to the Power Management IC (PMIC) series, specifically Voltage Regulators – Linear. It is a 3-terminal adjustable positive linear regulator comprised of an N-channel MOSFET, a main switching element, and a 2-terminal regulator equipped with current protection and thermal shutdown functions. The voltage dropon the output voltage is extremely low, typically 0.5V. Overall, the device integrates several of the most important features of a quality Voltage regulator, allowing for flexible and extremely efficient performance.

Application Fields

The NCV4274CST33T3G is applicable in numerous fields due to its extensive range of features While applicable in most fields requiring consistent voltage regulation, the device is chiefly used in the automotive industry, specifically in crucial components like ECUs (electronic control units). The device is also applicable in communication and consumer electronic devices, in particular smartphones and other handheld electronic devices. In each application, the device is designed to maintain a constant, precise output voltage while using very little power.

Working Principle

The basic principle of the NCV4274CST33T3G is fairly straightforward. The device essentially consists of two parts, an N-channel MOSFET operating in an open-loop configuration, and a 2-terminal regulator circuit. The N-channel MOSFET is responsible for switching an incoming signal from an input source and converting it into an output signal with the necessary output voltage and current level. The regulator circuit is responsible for ensuring that the output voltage remains consistent across a range of input voltage and load levels. To meet this end, the regulator circuit features an input voltage range from 2.9 - 6.0 V, with an Iq of typically 9 mA, and a source current of 18 mA. The regulator circuit also implements thermal protection, current protection, and a 0.2V dropout as standard features. The device also offers superior output accuracy, typically 0.5 mV, along withlow output noise, typically 0.2 mVrms. Additionally, during power up, the NCV4274CST33T3G offers an adjustable delay time, so that the output voltage is within the specified range when the device is operational.

Conclusion

The NCV4274CST33T3G is designed to meet a variety of needs in a wide range of applications. Due to its exceptional performance characteristics, the device is used in numerous fields requiring precise voltage regulation, such as in automotive components, communication devices, and consumer electronics devices. Its key features consist of an N-channel MOSFET switching element, a 2-terminal regulator circuit, thermal protection, current protection, and a 0.2V dropout. Furthermore, the regulator\'s output accuracy and low output noise make it an ideal choice for a variety of applications.

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