NCP114AMX290TCG

Current - Output:	300mA
Supplier Device Package:	4-UDFN (1.0x1.0)
Package / Case:	4-UDFN Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	150°C (TJ)
Protection Features:	Over Current, Over Temperature
Control Features:	Enable
PSRR:	75dB (1kHz)
Current - Quiescent (Iq):	95µA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	2.9V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active

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?Introduction The NCP114AMX290TCG is an adjustable and low-dropout three-terminal positive voltage regulator. As a part of PMIC-Voltage Regulators-Linear family, NCP114AMX290TCG is suitable for almost all kinds of microprocessor and digital system voltage regulation. Its design also centers on optimizing the performance while minimizing the power loss, which allows the device to function as a reliable and efficient power supply which is particularly useful in power sensitive applications.ApplicationThe NCP114AMX290TCG contains various features like low output voltage noise, high power supply rejection, low quiescent current, internal current limiting, and thermal shutdown, which makes it well suited for non-critical voltage regulation applications like digital systems, portable devices and personal computers. It is especially beneficial for microprocessor-based systems that perform sensitive operations as NCP114AMX290TCG effectively mitigates the effect of interference from other devices on the system.The adjustable features of the NCP114AMX290TCG allow it to be used as a replacement of fixed-regulated regulators when certain current or voltage conditions require customization. As a result, the device is used in a variety of applications such as post-regulated DC-DC converters, battery chargers, notebook computers and so forth where a wide input and output range is needed for successful operation. Working Principle The NCP114AMX290TCG voltage regulator contains one monolithic integrated circuit which acts as the base device and other peripheral components to form a complete power supply system. The integrated circuit has four main functions: error amplifier, pass transistor, current limit circuit, and thermal protection circuit.The error amplifier generates a voltage, which is dependent on the output voltage compared to the reference voltage, with some gain across the output error. This error is fed to the pass transistor/output stage, which controls the output voltage by matching or overriding the reference voltage.The current limiter circuit protects the output by limiting the current until the transistor is turned off. Finally, the thermal protection circuit senses the temperature of the device and turns it off if it exceeds the set threshold.Conclusion In conclusion, NCP114AMX290TCG is an adjustable and low-dropout three-terminal positive voltage regulator, suitable for voltage regulation applications. With its various operational features, including low output voltage noise, high power supply rejection, low quiescent current, internal current limiting, and thermal shutdown, it meets the need for a power sensitive operations and provides the customization for a wide range of current and voltage values. Its working principle is based on the combination of an integrated circuit, error amplifier, pass transistor, current limit circuit and thermal protection circuit, which together form a complete power supply system.

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