LP2989IMX-5.0

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

The LP2989IMX-5.0 is a micropower, low-noise, ultra-low-dropout linear voltage regulator manufactured by Texas Instruments. It provides a fixed positive output of 5 V with a maximum load current capability of 500 mA. The device operates from an input voltage range of 2.1 V to 16 V and features a typical dropout voltage of 310 mV at full load. It incorporates internal protection mechanisms including overcurrent limiting, thermal shutdown, and reverse battery protection. The component is housed in an 8-pin SOIC surface-mount package and is rated for operation within a junction temperature range of -40°C to +125°C.

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

• Ultra-low dropout performance enables efficient regulation with minimal voltage headroom requirements.
• Integrated overcurrent and thermal protection safeguards the device under fault conditions.
• Low noise architecture supports sensitive analog and RF circuit applications.

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

• Portable battery-powered equipment requiring stable power rails
• Wireless communication systems and base stations
• Personal digital assistants (PDAs) and mobile phones

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

Verify the specific suffix and RoHS compliance status against the manufacturer's latest documentation, as legacy variants may differ. Confirm availability through authorized distributors, noting that some listings indicate end-of-life or alternate recommendations. Ensure the ordering part number matches the required package type and temperature grade before procurement.

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

Select this component when a fixed 5 V output is required with high efficiency and low quiescent current. It is suitable for designs where input voltage varies significantly but remains above the minimum threshold. Consider the SOIC-8 package constraints for PCB layout and thermal management during the design phase.

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

This regulator belongs to the LP2989 family of micropower LDOs designed for portable electronics. It offers superior line and load regulation compared to standard regulators. The series is widely used in consumer electronics where space and power efficiency are critical constraints.

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

Check for LP2989IMX-5.0/NOPB as a potential lead-free alternative. Verify pin compatibility and electrical specifications before substituting with other LDO families.