NCP161AFCT450T2G

Voltage Dropout (Max):	0.21V @ 450mA
Supplier Device Package:	4-WLCSP (0.64x0.64)
Package / Case:	4-XFBGA, WLCSP
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Soft Start
Control Features:	Enable
PSRR:	91dB ~ 48dB (100Hz ~ 100kHz)
Current - Quiescent (Iq):	23µA
Current - Output:	450mA
Series:	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4.5V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction
The NCP161AFCT450T2G is an integrated circuit for linear voltage regulation. This PMIC (Power Management Integrated Circuit) is an excellent device for continuous voltage regulation and protection in medium to high current applications. It helps conserve energy and also reduces cost and complexity as it is an integrated solution. Moreover, the NCP161AFCT450T2G is cost-effective and easy-to-implement with a wide operating temperature range of -40°C to +85°C. The device also features a number of features for its optimal device performance, such as low dropout voltage and low operating current. Application Field
The NCP161AFCT450T2G is typically used to provide power across a wide range of industrial applications, such as battery-powered products, automotive systems, as well as consumer and portable electronic appliances. This device also finds application in point-of-load (POL), micro-controller systems, LED lighting and power monitoring. Similarly, it can be used in computers and peripheral devices; solar power systems; robotics and others. This voltage regulator is also widely used in industrial and telecom systems where the need for reliable continuous highly efficient power regulation is present. Working Principle
The NCP161AFCT450T2G is a linear voltage regulator which functions by pulsating the current within the loop or system. The linear regulator works by reducing the incoming voltage to the required level. It does this by reducing the current pulse using its internal transistors. The output voltage is then regulated and the remaining current is recycled into the circuit. This process helps in reducing power consumption, enhancing the performance and providing superior protection against noise and other electrical disturbances.The device also features an adjustable current limit, which can be adjusted either by increasing or decreasing the internal transistor count. This feature helps to reduce stress, increase the regulator’s lifespan, and also reduce interference, as well as enhance power efficiency. With the availability of multiple pins, the NCP161AFCT450T2G also offers dual-channel voltage sensing to provide tighter control of the output voltage with fewer components. Moreover, it has an integrated, low resistance, output discharging circuit, allowing for fast and safe discharge, even when the system is powered off.Conclusion
The NCP 161AFCT450T2G is an excellent power management integrated circuit, suitable for various medium to high current applications, owing to its excellent continuous voltage regulation and protection. Its wide operating temperature range of -40°C to +85°C, the adjustable current limit with dual-channel voltage sensing, and the integrated, low resistance output discharging circuit all make it an optimal device for a variety of industrial, telecom, and home applications.

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