LM385BZ-1.2RA

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

Power Management Integrated Circuit (PMIC) devices are an integral part of a variety of electronic circuits. PMICs provide voltage, current, and temperature regulation, as well as power conversion and control functions. One type of PMIC, known as a Voltage Reference, supports the ability to determine an accurate and consistent voltage reference when multiple reference sources are present. The LM385BZ-1.2RA is often used for this purpose, as it enables analog circuit designers to easily and accurately set a constant reference voltage. This article covers the application field and working principle of the LM385BZ-1.2RA.

Application field

The LM385BZ-1.2RA is a low-dropout (LDO) Voltage Reference designed for precision analog applications. It allows for the establishment of an accurate and consistent voltage reference, even with multiple reference sources present.

The LM385BZ-1.2RA is available in a wide range of output voltage levels, making it suitable for use across a variety of designs and applications. In addition, it offers a low dropout-voltage, ensuring that a wide range of operations remain within the regulated voltage range. Finally, the LM385BZ-1.2RA provides excellent temperature stability and excellent line and load regulation, allowing for a high degree of accuracy and reliability.

The small footprint on the LM385BZ-1.2RA makes it well suited for designs with space constraints and comes in an industry standard TO-92 package, making it easy to integrate into existing designs. The LM385BZ-1.2RA has been designed to work with various input voltage levels and current requirements, providing the necessary PMIC power for many established and emerging applications.

Working Principle

The LM385BZ-1.2RA utilizes two transistors, an output voltage divider, and a high current buffer amplifier to ensure an accurate and consistent reference voltage. As the input voltage is applied to the input of the voltage regulator, the two transistors act as a voltage divider and reduce the input voltage to achieve a consistent reference voltage. The output voltage divider is responsible for providing the actual reference voltage. This reference voltage is then compared to a voltage reference, and if the difference is greater than a specific tolerance, the transistors will adjust the output voltage to maintain the desired level.

To provide a high current buffer amplifier, the LM385BZ-1.2RA uses a pass transistor. This transistor is responsible for providing a high current amplifier in order to maintain the voltage reference and output current. The LM385BZ-1.2RA also utilizes a temperature compensation circuit to ensure that the reference voltage is stable and accurate across temperature changes. In case of input voltage changes, the pass transistor will adjust the output voltage to maintain the desired level.

The LM385BZ-1.2RA is a highly accurate and reliable Voltage Reference. It provides a consistent and accurate voltage reference when multiple reference sources are present and is ideal for many analog circuit applications.

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