NCP391FCALT2G

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NCP391FCALT2G is a specialized PMIC (Power Management IC) device that plays a significant role in many of today’s embedded systems. It is specifically designed to provide efficient power management and clean DC output, while being small and cost-effective enough to be used even in small factor systems.

The NCP391FCALT2G features a 3A integrated buck regulator, reverse current protection, and a wide range of voltage input and output options (1.9V to 5.5V). It also offers excellent transient protection and low-noise operation. The device is designed to integrate seamlessly with a host microcontroller, making it ideal for embedded applications where power and speed are at a premium.

The NCP391FCALT2G’s key application fields are in portable/handheld devices, industrial applications, communications systems, automotive electronics and battery-powered equipment. It can be used for powering a variety of components such as microcontrollers, FPGAs, external memory devices, sensors, and more.

In terms of working principle the NCP391FCALT2G is an integrated buck converter that combines an efficient, high-switching PWM (pulse-width modulation) controller, an internal P-Channel MOSFET, and a comparator. The output voltage is controlled by a ratio of ON and OFF time, which is determined by the external resistor network.

The PWM controller regulates the output voltage by comparing the external feedback voltage with an internal reference voltage and determines the ON and OFF times of the internal P-Channel MOSFET. The device also has a built-in comparator to ensure a constant output voltage is maintained when the voltage drop is below a certain threshold.

The NCP391FCALT2G is a high-efficiency, cost-effective solution for portable and low-power embedded applications with the following features: high switching frequency (1.5MHz), high current capability (3A max), low noise operation, internal reverse-current protection, wide range of voltage inputs (1.9V to 5.5V) and outputs (0.6V to 5.5V). Its excellent transient protection ensures reliable operation even in harsh operating conditions.

The NCP391FCALT2G is designed to provide efficient and clean direct current output, meaning that it produces less electromagnetic interference than its predecessors. This is important for a variety of applications such as automotive electronics, where electromagnetic interference must be kept to a minimum for safety reasons.

In conclusion, the NCP391FCALT2G is a specialized PMIC device designed for weight-sensitive, embedded applications that require a high degree of precision in terms of power management. It is a high-efficiency, cost-effective solution for a variety of application fields such as portable/handheld devices, industrial applications, communications systems, automotive electronics and battery-powered equipment. It features an integrated buck regulator, reverse current protection, wide voltage input and output options, excellent transient protection and low-noise operation.

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