LP2989AIMX-3.0 Equivalent & Substitute Parts

Part Overview

The LP2989AIMX-3.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 500mA output current with a fixed 3V output and operates across an input voltage range up to 16V. The regulator includes integrated protection features for over-current, over-temperature, and short-circuit conditions, making it suitable for power management applications requiring stable low-voltage regulation.

The LP2989AIMX-3.0 carries an Obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this regulator.

Substiute Parts

LP2989AIMX-3.0

Texas InstrumentsIn Stock: 3586LP2989AIMX-3.0 Datasheet

Current PartRFQ

LP2989AIMX-3.0/NOPB

Texas InstrumentsIn Stock: 2470LP2989AIMX-3.0/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP2989AIMX-3.0 is determined by strict equivalence across the following critical parameters:

• Output voltage specification (3V fixed)
• Maximum output current capability (500mA)
• Input voltage rating (16V maximum)
• Voltage dropout characteristics (0.65V @ 500mA)
• Package form factor (8-SOIC)
• Thermal operating range (-40°C ~ 125°C)
• Protection feature set (Over Current, Over Temperature, Short Circuit)

The LP2989AIMX-3.0/NOPB qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction between these parts is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The LP2989AIMX-3.0/NOPB is the appropriate substitute for the obsolete LP2989AIMX-3.0. Both parts deliver identical electrical performance and mechanical compatibility. The substitute part carries Active product status, ensuring ongoing availability and supply chain support.

The LP2989AIMX-3.0/NOPB achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. This compliance improvement aligns with current regulatory requirements for electronic components in many markets.

The packaging difference—Tape & Reel (TR) for the substitute versus bulk packaging for the original—reflects standard manufacturing practices for active products. This packaging format is suitable for automated assembly processes and high-volume production environments.

Frequently Asked Questions (FAQ)

Q: Are the LP2989AIMX-3.0 and LP2989AIMX-3.0/NOPB electrically identical?

A: Yes. Both parts deliver identical output voltage (3V), output current (500mA), input voltage rating (16V), voltage dropout (0.65V @ 500mA), and protection features. Electrical performance is equivalent across all specified parameters.

Q: What is the significance of the "/NOPB" suffix?

A: The "/NOPB" designation indicates the part is supplied in Tape & Reel (TR) packaging without plumbum (lead-free). This reflects the active product status and modern manufacturing standards.

Q: Can I use the LP2989AIMX-3.0/NOPB as a direct replacement in existing designs?

A: Yes. The substitute part is mechanically and electrically compatible. Both use the 8-SOIC package form factor with identical pinout and thermal characteristics. No design modifications are required.

Q: What is the difference in RoHS compliance between these parts?

A: The original LP2989AIMX-3.0 is RoHS non-compliant. The substitute LP2989AIMX-3.0/NOPB achieves ROHS3 compliance, meeting current environmental and regulatory standards for electronic components.

Q: Is the substitute part suitable for high-volume production?

A: Yes. The LP2989AIMX-3.0/NOPB is supplied in Tape & Reel packaging, which is the standard format for automated assembly and high-volume manufacturing environments.

Q: Are there any thermal or performance differences between these parts?

A: No. Both parts operate across the same temperature range (-40°C ~ 125°C) and deliver identical quiescent current (175 µA), PSRR (60dB at 1kHz), and all other electrical specifications.