LP3874EMP-2.5/NOPB

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The LP3874EMP-2.5/NOPB is a high-performance linear voltage regulator feature 5V output, 0.8V dropout, and a maximum output current of 1.5A. It is a complete low-dropout (LDO) regulator, providing constant output voltage and good regulation even when the input supply voltage drops below the regulator output voltage. The device features a low-noise linear regulator, low-power quiescent current, wide operating temperature range, thermal shutdown protection, and fast, accurate control. This LP3874EMP-2.5/NOPB application field and working principle are the following:

Application Field:

The LP3874EMP-2.5/NOPB voltage regulator is commonly found in automotive electronics, battery management systems, computers, consumer electronics and portable devices, industrial applications, and wireless communications systems. It can be used as a backup power supply for portable products, providing whether wide-range DC or AC input for improved system performance, or as a backup or main power supply for wireless communication systems.

Working Principle:

The LP3874EMP-2.5/NOPB voltage regulator is composed of three main components: a voltage reference, an adjustable voltage comparator, and a pass device. The voltage reference provides a stable reference voltage, while the adjustable voltage comparator acts as a voltage-controlled switch, controlling the pass device to regulate the output voltage. The current through the pass device is proportional to the difference between the output voltage and the reference voltage. The reference voltage is also proportional to the output voltage, which prevents the output voltage from exceeding its specified value. The pass device is usually a one-or two-stage transistor or MOSFET, which regulates the current flowing from the input to the output, maintaining the output voltage at the desired level.

The LP3874EMP-2.5/NOPB is used in applications that require the utmost precision and temperature stability. It provides a wide temperature operating range, low quiescent power consumption and fast response time to even large changes in output voltage. Additionally, this voltage regulator also offers a low shutdown current and high efficiency, as well as excellent power supply regulation and improved load regulation, making it an ideal choice for sensitive systems.

All in all, the LP3874EMP-2.5/NOPB voltage regulator is a reliable and cost-effective solution for a wide range of system requirements. It has a wide range of features, allowing it to be used in a variety of applications requiring a high level of accuracy and temperature stability. With its low quiescent current consumption, excellent load regulation, and fast response time to load changes, the LP3874EMP-2.5/NOPB is an ideal choice for portable and power-sensitive applications.

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