Texas Instruments

LP2989AILD-5.0/NOPB  

Linear & Switching Voltage Regulators

LP2989AILD-5.0/NOPB Description

The LP2989AILD-5.0/NOPB is a high-performance, fixed-output linear voltage regulator from Texas Instruments, designed to deliver a stable 5V output with a maximum current of 500mA. It operates with an input voltage range up to 16V, making it suitable for a variety of power management applications. The device features a low dropout voltage of 0.65V at 500mA, ensuring efficient regulation even with minimal headroom. Packaged in an 8-pin WSON (Wafer-Scale Small Outline No-Lead) form factor, it is optimized for space-constrained designs. With a quiescent current of just 175 µA and a supply current of 9 mA (max), it is ideal for battery-powered systems requiring low power consumption.

LP2989AILD-5.0/NOPB Features

• Fixed 5V Output: Ensures precise voltage regulation for sensitive electronics.
• Low Dropout Voltage: 0.65V @ 500mA minimizes power dissipation and improves efficiency.
• High PSRR: 60dB at 1kHz provides excellent noise rejection for clean power delivery.
• Enable Control: Allows for power-saving modes via an external enable pin.
• Robust Protection: Includes over-current, over-temperature, and short-circuit protection for enhanced reliability.
• Low Quiescent Current: 175 µA extends battery life in portable applications.
• RoHS3 & REACH Compliant: Meets environmental and safety standards.
• Surface-Mount Package (8-WSON): Compact footprint for high-density PCB designs.

LP2989AILD-5.0/NOPB Applications

This regulator is particularly suited for:

• Portable & Battery-Powered Devices: Such as handheld instruments, IoT sensors, and wearables, where low quiescent current is critical.
• Noise-Sensitive Systems: Including RF modules, ADCs, and audio circuits, benefiting from its high PSRR.
• Industrial & Automotive Electronics: Where robust protection features ensure reliability under harsh conditions.
• Embedded Systems: Microcontroller power supplies in space-constrained designs.

Conclusion of LP2989AILD-5.0/NOPB

The LP2989AILD-5.0/NOPB stands out as a reliable, high-efficiency linear regulator with low dropout, excellent noise performance, and robust protection features. Its compact size and low power consumption make it ideal for modern electronics requiring stable 5V power. While classified as Last Time Buy, its performance and TI’s reputation for quality ensure it remains a strong choice for legacy and new designs alike. Engineers should consider this regulator for applications demanding precision, efficiency, and durability.

LP2989AILD-5.0/NOPB Documents

Download datasheets and manufacturer documentation for LP2989AILD-5.0/NOPB

PCN Assembly/Origin :

Mult Devices Fab Site 02/Mar/2018      

Datasheets :

LP2989 Datasheet      

PCN Obsolescence/ EOL :

EOL 05/Oct/2023