NCP553SQ30T1

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Linear voltage regulators are ICs that provide a regulated output using the principle of voltage dropping resistors. The NCP553SQ30T1 is a linear voltage regulator from ON Semiconductor with ultra-low current consumption providing a low-dropout voltage with excellent accuracy and fast turn-on time. This device is ideal for use in battery-powered devices, such as handsets, digital cameras, portable medical instruments, and automotive applications.

The NCP553SQ30T1 offers a single output of up to 3 A. It integrates a low-dropout (LDO) linear regulator, a p-channel MOSFET, and a switch controller to provide a suitable current-controlled output. This device supports up to 40 V input voltage, providing flexible operation in a wide range of applications. It is also designed to have low quiescent current, so it only consumes current when the regulator is actively regulating.

The NCP553SQ30T1 offers a high level of accuracy. It can accurately regulate within ±2% of the targeted output voltage. The regulator also provided a fast turn-on time, with the p-channel MOSFET turning on in about 400 µs. This device also has an extended temperature range of -40 to +125°C, making it suitable for a wide range of applications.

The NCP553SQ30T1 features an integrated voltage reference. This ensures that the output voltage remains stable over large variations in the temperature, load, and line conditions. It also features integrated protection functions, including current limit and thermal shutdown. This safeguard helps protect the device in the event of fault conditions. The NCP553SQ30T1 also has a low output noise of 80 µVPP that allows it to work efficiently in environments with noise sensitivity.

The NCP553SQ30T1 is suitable for a wide range of applications such as battery-powered systems, 5 V or 3.3 V regulators, and general low power circuits. It is an ideal choice for many portable and automotive applications that require high accuracy and low quiescent current. The ultra-low current consumption and wide operating temperature provide an excellent choice for applications in various harsh environments.

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