LP2989AIMMX-2.5/NOPB

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LP2989AIMMX-2.5/NOPB is a micropower, low-noise, 500 mA ultra-low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It provides a fixed positive output of 2.5 V with a maximum input voltage of 16 V and supports an output current of 500 mA. The device features a typical dropout voltage of 310 mV at full load and operates within a junction temperature range of -40°C to 125°C. It includes built-in overcurrent protection, thermal shutdown, and reverse battery protection. The regulator is designed for stability with ceramic output capacitors and offers high power supply rejection ratio (PSRR) performance.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Ultra-low dropout voltage capability ensures efficient regulation even when the input-to-output differential is minimal.
• Designed specifically for stable operation with low-ESR ceramic output capacitors, reducing board space requirements.
• Integrated protection mechanisms include overcurrent limiting, thermal shutdown, and reverse battery protection to safeguard the circuit.
• Micropower architecture minimizes quiescent current consumption, extending battery life in portable applications.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Battery-powered portable electronic devices requiring efficient voltage regulation
• Wireless communication modules and RF circuits needing low-noise power supplies
• Microcontroller and digital logic systems requiring stable 2.5 V reference voltages
• Industrial control systems operating in wide temperature environments

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the exact suffix configuration against the manufacturer's latest datasheet to ensure compatibility with your specific design requirements. Confirm that the component meets all relevant RoHS and environmental compliance standards required for your target market. Cross-reference the package marking and pinout with official documentation before integration into production assemblies.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 2.5 V output is required with high current capacity and low noise characteristics. Ensure the application utilizes ceramic output capacitors to maintain stability, as specified by the manufacturer. Evaluate the thermal management needs based on the expected load current and ambient operating conditions to prevent thermal shutdown during peak usage periods.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the LP2989 family of micropower LDO regulators from Texas Instruments. The series is known for its ability to drive 500 mA loads with minimal voltage drop while maintaining low noise performance. The AIMM variant indicates an industrial temperature grade and a specific surface-mount package configuration suitable for automated assembly processes in commercial and industrial electronics.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes may include other LP2989 variants with different output voltages or packages, such as LP2989AIMX-2.5/NOPB, provided the electrical specifications and pinout remain compatible. Verify that any replacement maintains the same ceramic capacitor stability requirements and protection features.