LP3881EMRX-1.8

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Linear voltage regulators like the LP3881EMRX-1.8 are one of the most common and widespread power management integrated circuits (PMIC) used in a broad range of electronic devices. They provide a regulated output voltage level for an input voltage, helping protect devices from unintended fluctuations or overvoltage scenarios, and providing stability to the system as a whole.

Application Field of LP3881EMRX-1.8

The LP3881EMRX-1.8 is a 1.8V voltage regulator with a max output current of 1.2A. This chip is typically used for applications such as portal device VRMs, portable device VRMs, router VRMs, and embedded device VRMs. The LP3881EMRX-1.8 is also used in high-end consumer electronics like smartphones, smartwatches, and tablets. The chip can be configured to control voltage range from as low as 0.8V up to 5.5V, depending on the components chosen. This chip’s various features like thermal protection and high operating temperature range make it suitable for use in harsh industrial and automotive environments.

Working Principle of LP3881EMRX-1.8

The LP3881EMRX-1.8 is a low-dropout linear voltage regulator with a low quiescent current and a wide voltage range. The chip works through a process called linear-regulator-based voltage regulation, which involves a resistive-network-based feedback loop that constantly compares an input voltage to a reference voltage and adjusts the output voltage to maintain the difference between these two voltages. The chip utilizes a pass element, typically an N-channel MOSFET, which is used to control the amount of current that the regulator can deliver. The regulator also has a shunt element with a transistor which is used to short-circuit excess current when the output current is too high. This feature helps to protect the regulator and the device on which it is used against excessive currents that might damage the chip or create other problems.The LP3881EMRX-1.8 also has various additional features that make it more suitable than other linear regulators. These features include thermal protection, overvoltage protection, undervoltage protection, and adjustable dropout voltage. The thermal protection feature helps protect the chip and the device on which it is used against excessive temperatures, preventing damage caused by overheating. The overvoltage and undervoltage protection features help protect the chip and the device on which it is used against unintended voltage fluctuations. Also, the adjustable dropout voltage helps make the chip even more efficient as it helps to reduce the current consumption when the regulator is operating in a lower voltage range.

In conclusion, linear voltage regulators such as the LP3881EMRX-1.8 can be used in a variety of applications in which stable and reliable power management is required. The LP3881EMRX-1.8 is a low-dropout linear voltage regulator with many features to ensure stable and efficient power management, even in harsh industrial and automotive environments.

The specific data is subject to PDF, and the above content is for reference