LP3875ESX-2.5

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Linear voltage regulators are commonly used in electronic power supplies, providing a regulated output voltage from a limited, varying input voltage. LP3875ESX-2.5 is a 3A single-output low-dropout linear regulator with an adjustable output voltage range from 0.6V to 5.5V, providing a regulated output voltage from a limited, varying input voltage. The output voltage is adjustable via an external resistor-divider.

LP3875ESX-2.5 integrates a power MOSFET as the pass element and can be used with a wide range of capacitors, from ceramic capacitors to highly stable polymer aluminum capacitors. It is suitable for applications with input voltages up to 24V and can provide up to 3A output current with a dropout voltage as low as 150mV at full load.

This linear regulator has extended temperature range and is internally compensated, meaning that the device can be designed without an external output capacitor, making it an ideal solution for low-noise, high-efficiency power systems. The device is also designed with two levels of overtemperature protection, Cycle-by-Cycle current limit and thermal shutdown, offering protection against open and short circuit.

LP3875ESX-2.5 regulator includes advanced features such as low-dropout operation, active high-side reverse current protection and adjustable output voltage. It also features a quiescent current of 6mA, providing the ability for a wide range of applications. The device also supports Power Down Mode, which reduces the quiescent current to 5µA in shutdown mode.

LP3875ESX-2.5 linear regulator provides an adjustable 3A output voltage from a limited input voltage for a wide range of consumer and industrial applications. Typical applications include consumer electronics, security and consumer networking, automotive, and industrial. The device is designed to limit the input current to 3A, providing efficient operation with minimal power dissipation.

LP3875ESX-2.5 regulator operates according to the common voltage regulator principle, wherein the output voltage is determined by the resistive voltage divider network. It is based on the resistor-divider network, which senses the input voltage (Vin) at its positive terminal (Vin+) and the output voltage (Vout) at its negative terminal (Vout-). The voltage divider provides a reference voltage, Vref, based on the difference between the input and output voltages. Adjusting the resistance ratio of the voltage divider allows for the output voltage to be adjusted accordingly.

In order to ensure accurate and stable output voltage, a stable reference voltage from the voltage divider is necessary. LP3875ESX-2.5 linear regulator utilizes an internal reference voltage of around 0.7V, ensuring reliable and precise control of the output voltage. The voltage divider also acts as a current limiter, providing protection against excessive input current.

LP3875ESX-2.5 linear regulator is a reliable and efficient 3A single-output low-dropout linear regulator with an adjustable output voltage range from 0.6V to 5.5V. Its low quiescent current of 6mA makes it a suitable solution for low-power applications, while its adjustable output voltage and multiple protection features ensure reliable operation and protection against overcurrent, overtemperature, and short-circuits.

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