Texas Instruments

LP3981IMM-3.0/NOPB  

Linear & Switching Voltage Regulators

LP3981IMM-3.0/NOPB Description

The LP3981IMM-3.0/NOPB is a high-performance linear regulator designed by Texas Instruments, offering a fixed 3V output voltage with a maximum output current of 300mA. This regulator is part of the Power Management Integrated Circuit (PMIC) category and is housed in an 8-pin VSSOP package, making it suitable for surface-mount applications. The device features a maximum input voltage of 6V and a low dropout voltage of 0.2V at 300mA, ensuring efficient operation even under low input-to-output voltage differentials.

LP3981IMM-3.0/NOPB Features

• Fixed Output Voltage: The LP3981IMM-3.0/NOPB provides a stable 3V output, ideal for applications requiring a consistent power supply.
• High Efficiency: With a maximum dropout voltage of 0.2V at 300mA, this regulator maintains high efficiency even at low input voltages, reducing power loss and heat generation.
• Low Quiescent Current: The regulator operates with a quiescent current of only 120 µA, making it suitable for battery-powered devices where power conservation is critical.
• Enable Control Feature: The enable pin allows for dynamic control of the regulator, enabling power-saving modes and enhancing system flexibility.
• Protection Features: The LP3981IMM-3.0/NOPB includes over-current, over-temperature, and short-circuit protection, ensuring robustness and reliability in various operating conditions.
• High PSRR: The regulator boasts a power supply rejection ratio (PSRR) of 50dB to 55dB across a frequency range of 1kHz to 10kHz, effectively filtering out noise and providing a clean power supply to sensitive circuits.
• Compliance and Packaging: The LP3981IMM-3.0/NOPB is REACH unaffected and RoHS3 compliant, meeting stringent environmental standards. It is available in a tape and reel package, facilitating automated assembly processes.

LP3981IMM-3.0/NOPB Applications

The LP3981IMM-3.0/NOPB is well-suited for a variety of applications where a reliable, low-dropout linear regulator is required. Some specific use cases include:

• Battery-Powered Devices: Ideal for portable electronics such as smartphones, tablets, and wearable devices, where low quiescent current and high efficiency are crucial for extending battery life.
• Low-Voltage Systems: Suitable for systems operating at low input voltages, such as IoT devices and embedded systems, where the low dropout voltage ensures efficient power conversion.
• Sensitive Analog Circuits: The high PSRR makes this regulator suitable for powering analog circuits, such as sensors and ADCs, where a clean power supply is essential for accurate measurements.
• Medical Devices: The combination of low dropout voltage, low quiescent current, and comprehensive protection features makes the LP3981IMM-3.0/NOPB a reliable choice for medical equipment requiring stable and efficient power management.

Conclusion of LP3981IMM-3.0/NOPB

The LP3981IMM-3.0/NOPB from Texas Instruments stands out as a versatile and efficient linear regulator, offering a fixed 3V output with a maximum current of 300mA. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for a wide range of applications, particularly in battery-powered and low-voltage systems. The inclusion of enable control and comprehensive protection features further enhances its flexibility and reliability. For engineers seeking a robust, efficient, and environmentally compliant power management solution, the LP3981IMM-3.0/NOPB is an ideal choice.

LP3981IMM-3.0/NOPB Documents

Download datasheets and manufacturer documentation for LP3981IMM-3.0/NOPB

Datasheets :

LP3981      

HTML Datasheet :

LP3981      

PCN Design/Specification :

VSSOP Pkg Copper Wire 07/Jun/2013