NCV4276CDS50R4G

Current - Output:	400mA
Supplier Device Package:	D2PAK-5
Package / Case:	TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 150°C
Protection Features:	Over Temperature, Reverse Polarity, Short Circuit
Control Features:	--
PSRR:	70dB (100Hz)
Current - Supply (Max):	35mA
Current - Quiescent (Iq):	200µA
Series:	Automotive, AEC-Q100
Voltage Dropout (Max):	0.5V @ 250mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	5V
Voltage - Input (Max):	45V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to NCV4276CDS50R4G

The NCV4276CDS50R4G is a low dropout (LDO) voltage regulator. It is a linear voltage regulator that provides low output voltage errors and high current levels. It is designed to provide low output voltage accuracy, high power supply rejection ratio (PSRR) and fast transient response.

Application Field

The NCV4276CDS50R4G is suitable for high-efficiency, low output voltage regulation applications, such as those found in mobile and computing devices. It is also suitable for use in automotive and industrial applications. In mobile devices, it is commonly used in cellular and Bluetooth transceivers, power amplifiers, and memory and logic transceivers, offering superior performance and enhanced protection features.In automotive applications, the NCV4276CDS50R4G is often used for high voltage power supply sequencing and monitoring, such as the pre-charge and fast charging of batteries, and for powering automotive infotainment systems. In industrial applications, it is often applied to low voltage power supply control, including voltage monitoring and power system protection.

Working Principle

The NCV4276CDS50R4G is an LDO voltage regulator. It uses a DC-DC buck-boost topology to convert an incoming voltage to a lower regulated output voltage. It works using negative feedback control. The principle is as follows:The regulator compares the output voltage of the regulator against a fixed reference voltage, usually derived from a bandgap or Zener diode. The regulator adjusts the duty cycle of a switching device in the feedback path in order to maintain a constant output voltage. When the output voltage drops, the duty cycle is increased, and when the output voltage is too high, the duty cycle is decreased.The NCV4276CDS50R4G is also equipped with an adjustable voltage reference, allowing for fine-tuning of the output voltage, as well as over-current and short circuit protection, allowing for a safe operation.

Conclusion

The NCV4276CDS50R4G is a low dropout linear voltage regulator, suitable for high-efficiency, low output voltage regulation applications. It features low output voltage errors and high current levels, with superior performance and enhanced protection features. The regulator works on the principle of negative feedback control, adjusting the duty cycle of a switching device in the feedback path in order to maintain a constant output voltage. The NCV4276CDS50R4G is well suited for mobile, automotive and industrial applications, offering superior performance and enhanced protection features.

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