LM2931AZ-5.0/LFT3

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LM2931AZ-5.0/LFT3 is a linear voltage regulator from the Power Management Integrated Circuit (PMIC) family, which is used in applications requiring low voltage output regulation such as mobile phones, automotive electronics and small home appliances. This device is a high-performance low-dropout three-terminal adjustable positive voltage regulator specifically designed to provide a low output voltage with low quiescent current. It has an output voltage adjustable between 1.2 V and 5.0 V, enabling it to provide different output values for a variety of power management applications.

The LM2931AZ-5.0/LFT3 works on the principle of linear voltage regulation, meaning it stabilizes voltage by passing a non-fluctuating current from the output pin to the ground through a pass transistor. When the inverting terminal of the regulator is grounded, a steady voltage source is obtained in the output pin, which is proportional to the voltage difference between the input and the output pins. Since the linear voltage regulator does not require any external components, it is able to provide substantial savings in cost, space and power.

The primary application field for the LM2931AZ-5.0/LFT3 is for low-voltage circuit components. It can be used as a voltage reference for various audio applications, handheld devices, computers and telecommunication terminals. It has low output noise over line and load changes, making it suitable for switched-mode power supplies and other portable, cost-sensitive applications.

Typical applications include low power audio amplifiers, video systems, clock circuits and mobile phones. It also meets the requirements of automotive electronics as well as other small home appliances. The LM2931AZ-5.0/LFT3 also provides a wide range of load, input voltage and reverse voltage protection and over-temperature protection.

In summary, the LM2931AZ-5.0/LFT3 is a simple yet efficient linear voltage regulator that is widely used in the consumer electronics and automotive industry. It features low-dropout and low quiescent current, a wide adjustment range, and is able to provide protection from voltage and current overloads. Its wide application range, low cost and cost-effectiveness make it the perfect choice for many low power applications.

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