LP2989AILDX-5.0/NOPB

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

The LP2989AILDX-5.0/NOPB is a fixed-output low-dropout linear voltage regulator manufactured by Texas Instruments, providing a stable 5 V output with a maximum load current of 500 mA. It operates within an input voltage range of 2.1 V to 16 V and features a typical power supply rejection ratio (PSRR) of 60 dB at 1 kHz. The device maintains a quiescent current of 175 µA and supports operation across an extended temperature range from -40°C to +125°C. Housed in an 8-WSON package measuring 4x4 mm, it includes integrated protection against overcurrent, thermal overload, and short circuits.

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

• Integrated enable control for power management
• Built-in overcurrent, thermal overload, and short-circuit protection
• Low noise performance with high PSRR

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

• Portable battery-powered equipment
• Wireless communication systems
• Handheld instruments

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

Verify the specific suffix and package type when ordering, as the LP2989 series offers multiple variants including SOIC and WSON packages with different output voltages. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Check for active production status or obsolescence notices, as some older revisions may be discontinued. Ensure the selected variant matches your board layout constraints regarding the 8-pin footprint dimensions.

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

Select this component when a compact surface-mount solution is required for 5 V regulation in space-constrained designs. The WSON package provides a smaller footprint compared to traditional SOIC options while maintaining similar electrical characteristics. Consider the 175 µA quiescent current for battery life optimization in portable applications. Verify that the input voltage remains above the minimum dropout requirement for the expected load current to ensure stable regulation.

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

This part belongs to the LP2989 family of micropower LDO regulators designed for low-noise applications. The series is characterized by its ability to deliver up to 500 mA with minimal voltage drop. The AILDX suffix indicates an industrial temperature grade (-40°C to +125°C) and the WSON-8 package configuration. The NOPB suffix denotes lead-free and rohs-compliant manufacturing.

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

LP2989AIMX-5.0/NOPB

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

What is the maximum input voltage for the LP2989AILDX-5.0/NOPB?

The maximum input voltage is 16 V.

Does the LP2989AILDX-5.0/NOPB include an enable pin?

Yes, the device features an enable control input for power management.