Texas Instruments

LP2989AIM-2.5  

Linear & Switching Voltage Regulators

LP2989AIM-2.5 Description

The LP2989AIM-2.5 is a fixed-output linear voltage regulator designed by Texas Instruments. This device is engineered to provide a stable 2.5V output voltage with a maximum output current of 500mA. It features a low dropout voltage of 0.65V at 500mA, ensuring high efficiency even at low input-to-output voltage differentials. The regulator operates with an input voltage range up to 16V, making it suitable for a variety of power supply applications. The LP2989AIM-2.5 is housed in an 8-pin SOIC package, which is ideal for surface-mount applications and provides a compact solution for space-constrained designs.

LP2989AIM-2.5 Features

• Output Type: Fixed 2.5V output voltage, ensuring consistent power delivery.
• Input Voltage Range: Supports a wide range up to 16V, providing flexibility in power source selection.
• Output Current: Capable of delivering up to 500mA, suitable for powering various electronic components.
• Low Dropout Voltage: 0.65V at 500mA, which enhances efficiency and reduces power loss.
• Enable Control Feature: Allows for dynamic control of the regulator's operation, enabling power savings and controlled startup/shutdown sequences.
• Protection Features: Over-current, over-temperature, and short-circuit protection ensure robustness and reliability in diverse operating conditions.
• Low Quiescent Current: 175 µA, minimizing power consumption during idle states.
• High PSRR: 60dB at 1kHz, which helps in filtering out noise from the input power supply, resulting in cleaner output voltage.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for storage and handling in various environments.
• Mounting Type: Surface mount, ideal for modern PCB designs and automated assembly processes.

LP2989AIM-2.5 Applications

The LP2989AIM-2.5 is well-suited for a range of applications where a stable and efficient power supply is required. Its low dropout voltage and fixed output make it particularly useful in battery-powered devices, where maintaining efficiency as the battery discharges is crucial. The regulator's compact 8SOIC package and surface-mount compatibility make it ideal for consumer electronics, portable devices, and embedded systems where space is at a premium. Additionally, its robust protection features and low quiescent current make it suitable for automotive electronics and industrial control systems, where reliability and efficiency are paramount.

Conclusion of LP2989AIM-2.5

The LP2989AIM-2.5 from Texas Instruments is a versatile and efficient linear voltage regulator that offers a stable 2.5V output with a maximum current of 500mA. Its low dropout voltage, wide input voltage range, and comprehensive protection features make it a reliable choice for a variety of applications. The enable control feature and low quiescent current further enhance its suitability for power-sensitive designs. Despite being marked as obsolete, the LP2989AIM-2.5 remains a valuable component for engineers seeking a compact, efficient, and robust power solution.

LP2989AIM-2.5 Documents

Download datasheets and manufacturer documentation for LP2989AIM-2.5

Datasheets :

LP2989 Datasheet      

PCN Design/Specification :

Copper Wire Update 12/Aug/2015