Texas Instruments

LP2989IMX-3.3/NOPB  

Linear & Switching Voltage Regulators

LP2989IMX-3.3/NOPB Description

The LP2989IMX-3.3/NOPB is a fixed-output linear regulator designed by Texas Instruments, offering a stable 3.3V output voltage with a maximum output current of 500mA. This device is housed in an 8SOIC package and is suitable for surface mount applications. Despite being marked as obsolete, it remains a reliable choice for power management in various electronic systems. The regulator features a maximum input voltage of 16V and a dropout voltage of 0.65V at 500mA, ensuring efficient operation even under varying input conditions. It also includes essential protection features such as over-current, over-temperature, and short-circuit protection, enhancing its robustness and reliability.

LP2989IMX-3.3/NOPB Features

• Fixed Output Voltage: The LP2989IMX-3.3/NOPB provides a stable 3.3V output voltage, making it ideal for applications requiring a precise and consistent power supply.
• High Efficiency: With a maximum dropout voltage of 0.65V at 500mA, this regulator ensures high efficiency, especially in applications where the input voltage may be close to the output.
  voltage- Low Quiescent Current: The regulator has a low quiescent current of 175 µA, which is beneficial for battery-powered devices and other applications where power consumption needs to be minimized.
• Protection Features: Over-current, over-temperature, and short-circuit protection features safeguard the regulator and connected components from potential damage.
• Enable Control: The enable feature allows for dynamic control of the regulator's operation, providing flexibility in managing power consumption and system performance.
• High PSRR: A power supply rejection ratio (PSRR) of 60dB at 1kHz ensures that the regulator can effectively filter out noise and ripple from the input power supply, resulting in a cleaner output voltage.
• Compliance and Packaging: The LP2989IMX-3.3/NOPB is REACH unaffected and RoHS3 compliant, making it suitable for environmentally conscious designs. It is available in a tape and reel package, facilitating automated assembly processes.

LP2989IMX-3.3/NOPB Applications

The LP2989IMX-3.3/NOPB is well-suited for a variety of applications that require a stable and reliable 3.3V power supply. Some specific use cases include:

• Embedded Systems: Ideal for powering microcontrollers, sensors, and other low-power components in embedded systems.
• Consumer Electronics: Suitable for devices such as smartphones, tablets, and portable gaming consoles where a stable power supply is crucial.
• Industrial Control: Can be used in industrial automation systems to power control modules and sensors.
• Telecommunications: Provides a reliable power source for communication modules and base stations.
• Medical Devices: Ensures stable power delivery for medical monitoring devices and diagnostic equipment.

Conclusion of LP2989IMX-3.3/NOPB

The LP2989IMX-3.3/NOPB from Texas Instruments is a robust and efficient linear regulator that offers a stable 3.3V output with a maximum current of 500mA. Its low dropout voltage, low quiescent current, and comprehensive protection features make it a reliable choice for a wide range of applications. Despite its obsolete status, the LP2989IMX-3.3/NOPB remains a viable option for designers seeking a high-performance, low-power regulator. Its compliance with environmental standards and availability in a surface-mount package further enhance its appeal in modern electronic designs.

LP2989IMX-3.3/NOPB Documents

Download datasheets and manufacturer documentation for LP2989IMX-3.3/NOPB

PCN Assembly/Origin :

Mult Devices Fab Site 02/Mar/2018      

Datasheets :

LP2989 Datasheet      

PCN Obsolescence/ EOL :

Mult Dev obs 13/Oct/2022      

PCN Design/Specification :

Copper Wire Update 12/Aug/2015