LP2989IMMX-1.8/NOPB

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 regulators are used in many applications requiring precise, power supply current levels and voltage regulation. Generally, they convert higher input voltage to a lower voltage, specifically requested by the load. They provide steady voltage and current, together with some additional protection. Popularly known as low-dropout (LDO) regulators, most of them are based on optimized technology that guarantee the required stability and safety. Consequently, linear regulators have found widespread use in consumer electronics, telecommunication equipments, industrial controllers, medical instruments and office machines.

The LP2989IMMX-1.8/NOPB is a low supply current LDO voltage regulator, with a high accuracy of 1.2% and an extremely low quiescent current of 1 μA. This device includes an overtemperature protection and overvoltage clamp, as well as an integrated current limit feature. The output voltage of the regulator can be adjusted either to 1.8 V or fixed to the ratings. It’s a small package that is capable of delivering up to 100 mA current and can be used in a wide range of temperatures.

In terms of LP2989IMMX-1.8/NOPB applications, it is popularly used in devices with low power consumption like portable radios, audio players and low-end digital cameras. Its low quiescent current makes it an excellent power source for systems that have an extended battery life. It can also be used in systems like car navigation, telecommunication and other small devices, where high efficiency is required.

The LP2989IMMX-1.8/NOPB linear regulator includes an integrated current source, which means that the output voltage rises if the current draw goes beyond the voltage rating. Also, the quiescent current on the output of the regulator is adjustable, which makes it suitable for applications where the output current is expected to change frequently.

The working principle of the LP2989IMMX-1.8/NOPB voltage regulator is simple. It converts a higher input voltage, typically the output voltage of a battery, to a lower voltage, while providing a steady output current. To do that, a device known as a Darlington transitor is used, which is a combination of two transistors. The input voltage is applied to one of the transistors, while the output voltage is applied to the other. When the transistors turn on, the current drawn from the input voltage is transferred over to the output voltage, allowing the voltage to be regulated.

The Darlington transistor is connected in a feedback loop with a resistor and a diode, and when the output voltage starts to increase due to a higher level of current draw, the response of the feedback loop compensates by reducing the amount of current that is drawn from the input voltage. This prevents the output voltage from becoming too high and maintains the desired voltage level.

Overall, the LP2989IMMX-1.8/NOPB linear voltage regulator is an excellent choice for applications that require precise, low power supply current levels, along with good accuracy and an efficient operation. The device is compact, requires no adjustments, and offers a wide range of temperature stability and low noise levels, making it an ideal solution for many applications.

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