LP3999ITL-1875/NOPB

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LP3999ITL-1875/NOPB is a fixed-voltage linear regulator specially designed for portable equipment and other low-power automatic low-dropout (LDO) applications. It offers superior noise and output accuracy over a wide temperature range of -40°C to + 85°C. It is a low-cost, low-power, low-dropout monolithic linear regulator with integrated logic-controlled shutdown circuitry and low power shutdown mode. The device has a wide input voltage range of 2.7 V to 5.5 V, and is available in 2.5 V, 3.3 V, 1.8 V and 1.2 V of fixed output voltage versions.

LP3999ITL-1875/NOPB\'s application field mainly includes Battery-Powered (portable) Equipment, handheld devices, wearables, Medical Devices, Wireless Infrastructure, Automotive, IoT Applications and audio products. This device has been specially designed for use in portable and low-power automatic applications and offers superior performance over a wide temperature range. It also offers the advantages of a low quiescent current and a low dropout voltage. The logic-controlled shutdown circuitry enables the controller to regulate the output voltage of the device.

The working principle of LP3999ITL-1875/NOPB is similar to that of any other linear regulator. It uses a power transistor and resistors to regulate the output voltage by controlling the amount of current that passes through the device. When the input voltage is higher than the output voltage, the regulator turns on the power transistor and allows the circuit to draw a certain amount of current. This current is regulated by varying the resistance values of the resistors. The voltage that is generated is then compared with the reference voltage and the output voltage is regulated accordingly.

LP3999ITL-1875/NOPB also utilizes integrated logic-controlled shutdown circuitry. This allows the device to enter a low power shutdown mode when the input voltage drops below a predetermined voltage. This feature helps conserve battery life and reduces noise. Since the device uses a linear regulator, it does not provide the same amount of protection from over-voltage and current over-load as a switching regulator. Nevertheless, its small size, low power consumption, and high accuracy make it the ideal choice for low power applications.

In conclusion, LP3999ITL-1875/NOPB is an excellent choice for low power, low voltage applications. It offers superior output accuracy, a wide input voltage range, and a wide temperature range. It also features a low dropout voltage and an integrated logic-controlled shutdown circuitry which helps to conserve battery life and reduce noise. Furthermore, the device is very cost-effective, making it an ideal solution for a wide range of applications.

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