NCP551SN28T1G

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PMIC, or Power Management Integrated Circuits, are specialized chips used to provide multiple power supply voltages to run various components in an electronic device. A PC Motherboard, for example, may have many areas with different voltage requirements, each of which is controlled by their own PMIC. The NCP551SN28T1G is an example of a PMIC that provides linear voltage regulation. This article will discuss the application, working principle and main features of the NCP551SN28T1G.

Application

The NCP551SN28T1G is designed for use in portable electronic devices such as laptops, tablets, smartphones and handheld gaming devices. It offers adjustable output voltages ranging from 0.6V to 28V, with output currents up to 0.75A, making it suitable for powering most components that require a low voltage supply. It also features an integrated protection circuit, which prevents overcurrent and overvoltage conditions.

Working Principle

Linear voltage regulation is the simplest and most commonly used method of voltage regulation. In this type of system, a feedback circuit is used to monitor the output voltage and adjust it to the desired level. The NCP551SN28T1G works on this principle. It uses an error amplifier to compare the output voltage to a reference voltage and adjust the output accordingly. The output is also protected by an overcurrent, overtemperature and overvoltage protection circuit.

Features

The most notable feature of the NCP551SN28T1G is its adjustable output voltage range. This allows the user to set a specific voltage that meets the requirements of their design. It also has a wide working temperature range from -40C to 85C, which means it can be used in harsh environments. Other features include low standby current consumption, excellent EMI/RFI performance, and low output voltage ripple. The NCP551SN28T1G also features integrated reset and power-on reset circuits for safety and reliability.

Conclusion

The NCP551SN28T1G is a versatile linear regulator that can be used in a wide range of applications. It features adjustable output voltage settings and excellent EMI/RFI performance. It also has integrated protection circuits and an excellent temperature range, making it suitable for use in demanding environments. Overall, the NCP551SN28T1G is an excellent choice for applications that require reliable, low-voltage power supplies.

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