NB671AGQ-P

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The NB671AQ-P is a DC-DC switching regulator, part of a family of voltage regulators manufactured by ON Semiconductor. It is a generic-purpose device that can be used in a wide range of applications. This paper will explain the application field and general working principle of the NB671AQ-P

The primary feature of the NB671AQ-P is its wide input range and adjustable output voltage. The device can operate from input voltages of 4.5V to 28V and its adjustable output voltage can range from 0.7V to 27V. This makes it suitable for a number of different applications in the automotive, transportation, telecommunications and industrial markets.

The NB671AQ-P offers high efficiency, up to 95%, which helps to reduce power dissipation and power loss in applications. This helps to make the device suitable for portable, space-constrained applications. The device also offers thermal protection, adjustable switching frequency and current limit, as well as protection against overcurrent, overvoltage and overtemperature faults.

The NB671AQ-P also includes other features such as an optional external shutdown function and an optional synchronous rectification control pin. This makes it a versatile and flexible device suitable for a wide range of application.

The NB671AQ-P is a step-down DC-DC switching regulator, which means it is a type of voltage regulator that converts an input voltage of higher magnitude than its output. This is achieved by switching an internal transistor, usually an NMOS, on and off rapidly. When the transistor is on, it acts as an inductor, resulting in a current buildup. When the transistor is off, the energy stored in the inductor is released, resulting in the output voltage being adjusted to a lower value. This switching on and off of the transistor is known as Pulse Width Modulation (PWM).

The NB671AQ-P has several control pins that allow for fine-tuning of its operation. The Enable Pin is used to enable or disable the device. The Frequency Control Pin can be used to adjust the switching frequency of the internal transistor, while the Mode Control Pin is used to enable either Burst Mode or Low Power Mode. The mode is used to achieve the highest efficiency or lower power consumption, depending on the application.

Finally, the NB671AQ-P also has a wide range of protection features. It includes thermal protection, over-current protection, over-voltage protection, overtemperature protection and over-power protection. This ensures that the device is safe to use even in the most extreme conditions.

In summary, the NB671AQ-P is a versatile and flexible device that can be used in a wide range of applications. It offers a wide input range, adjustable output voltage and high efficiency, as well as a number of protection features. It is a robust device suitable for a variety of applications, such as automotive, transportation, telecommunications and industrial systems.

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