LP3986TL-3333/NOPB

LP3986TL-3333/NOPB Application Field and Working Principle

LP3986TL-3333/NOPB is a linear voltage regulator which belongs to the power management integrated circuits (PMIC) of Texas Instruments. This product is suitable for applications that require high level of nozzle performance, system integration and minimize the bill of material. It is one of the family of adjustable voltage, linear regulators optimized for specific applications and provides a total dropout voltage of 2.1V, low operating current and 150mA of output current.

The LP3986TL-3333/NOPB is specially designed for always on standby applications like microcontroller power supplies. It helps to save power in applications such as wireless headsets, digital cameras and other medical applications. The LP3986TL-3333/NOPB is integrated with access control features, thermal feedback and protected against short circuit and reverse output conditions, which enables each system to go into low power mode during shutdown.

The LP3986TL-3333/NOPB is built with a special circuit design that allows the regulator to maintain high efficiency and low quiescent current without the need for output voltage feedback, thus reducing the system cost. It is also equipped with a power-on reset controller to ensure a proper start-up operation, even when faced with heavy capacitive loads.

The LP3986TL-3333/NOPB has a wide range of operating voltage input from 1.3V to 10V and output voltage from 0.5V to 6V. It contains a thermal control circuit which helps in reducing the possibility of thermal runaway. This feature is beneficial in applications where the voltage regulation and external components aren\'t optimally sized. This circuit keeps the converter output in regulation, even when subjected to high ambient temperatures or wide line variations.

The working principle of LP3986TL-3333/NOPB is relatively simple. It has an output voltage regulator circuit which uses a control loop to maintain an output voltage at the required level. The input voltage is set up with the voltage divider resistors and is compared with the reference voltage regulated by an operational amplifier. The operational amplifier generates an error signal representing the difference between the input and output voltages and is sent to the error amplifier. The error amplifier regulates the voltage at the output to the desired level. The feedback network is used to adjust the output voltage. This feedback network also regulates the output current and keeps the output voltage in regulation for any loading conditions.

The LP3986TL-3333/NOPB is designed to withstand high temperatures, transient pressures and other industrial grade applications without any parameters shifting when used in most voltages of information technology equipment, automotive and medical applications. It also supports single cell Li-Ion/Li-Polymer battery, making it suitable for battery-powered systems that need to be as small as possible.

In conclusion, the LP3986TL-3333/NOPB provides an excellent solution for applications that require high level of integration, small BOM and high power efficiency. It offers low dropout voltage, low operating current, improved output regulation and reduced quiescent current. Moreover, the circuit design simplifies design complexity and reduces design costs. The LP3986TL-3333/NOPB is suitable for applications including wireless headsets, digital cameras and other medical applications.