Texas Instruments

LP2989IMX-3.0

LP2989IMX-3.0 Description

The LP2989IMX-3.0 is a fixed output linear regulator designed by Texas Instruments, featuring a maximum input voltage of 16V and a maximum output current of 500mA. This single regulator is configured for positive output, providing a stable 3V output voltage with a dropout voltage of 0.65V at 500mA. The regulator is designed for surface mount applications and comes in an 8SOIC package, making it suitable for compact and space-constrained designs. Despite being marked as obsolete, the LP2989IMX-3.0 remains a reliable choice for power management applications due to its robust performance and protection features.

LP2989IMX-3.0 Features

• Output Type: Fixed output voltage, ensuring a consistent 3V supply.
• Input Voltage Range: Up to 16V, providing flexibility in power source selection.
• Output Current: Capable of delivering up to 500mA, suitable for a wide range of low-power applications.
• Low Dropout Voltage: 0.65V at 500mA, enabling efficient operation even at low input-to-output voltage differentials.
• Low Quiescent Current: 175 µA, minimizing power consumption in standby mode.
• High PSRR: 60dB at 1kHz, ensuring excellent noise rejection and stable output.
• Protection Features: Overcurrent, overtemperature, and short-circuit protection, safeguarding the regulator and connected circuits.
• Control Features: Enable function allows for easy control of the regulator's operation.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for various manufacturing environments.
• Package Type: Tape & Reel (TR), facilitating automated assembly processes.

LP2989IMX-3.0 Applications

The LP2989IMX-3.0 is ideal for applications requiring a stable 3V supply with low power consumption and efficient operation. Its low dropout voltage and high PSRR make it suitable for battery-powered devices, portable electronics, and embedded systems. The regulator's protection features ensure reliable performance in demanding environments, making it a preferred choice for:

• Battery-Powered Devices: Ensuring efficient power conversion and long battery life.
• Portable Electronics: Providing a stable power supply in compact and lightweight designs.
• Embedded Systems: Offering reliable power management for microcontrollers and other low-power components.
• Industrial Applications: Withstanding harsh conditions due to its robust protection features.

Conclusion of LP2989IMX-3.0

The LP2989IMX-3.0 is a versatile and reliable linear regulator, offering a stable 3V output with efficient low dropout operation and robust protection features. Despite its obsolete status, it remains a valuable component for power management applications, particularly in battery-powered and portable electronics. Its low quiescent current and high PSRR ensure minimal power loss and stable performance, making it an ideal choice for a wide range of applications.