LP2989AIM-2.5 Equivalent & Substitute Parts

Part Overview

The LP2989AIM-2.5 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 500mA output current with a fixed 2.5V output and operates across an input voltage range up to 16V. The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Direct substitutes and parametric equivalents are available from the same manufacturer with improved compliance status.

Substiute Parts

LP2989AIM-2.5

Texas InstrumentsIn Stock: 2453LP2989AIM-2.5 Datasheet

Current PartRFQ

LP2989AIM-2.5/NOPB

Texas InstrumentsIn Stock: 3690LP2989AIM-2.5/NOPB Datasheet

DirectRFQ

LP2989IM-2.5/NOPB

Texas InstrumentsIn Stock: 2121LP2989IM-2.5/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP2989AIM-2.5 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 2.5V
• Maximum output current of 500mA
• Maximum input voltage of 16V
• Voltage dropout specification of 0.65V @ 500mA
• 8-SOIC surface mount package
• Operating temperature range of -40°C to 125°C
• Positive output configuration with fixed output type
• Control features including Enable function
• Protection features: Over Current, Over Temperature, Short Circuit

Parts meeting all these parameters are classified as direct substitutes or parametric equivalents. Differences in product status and RoHS compliance are noted but do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

LP2989AIM-2.5/NOPB is the direct manufacturer substitute with identical electrical and mechanical specifications. This part carries Active product status and ROHS3 compliance, addressing the obsolescence and regulatory limitations of the original LP2989AIM-2.5.

LP2989IM-2.5/NOPB is a parametric equivalent offering identical electrical performance and package compatibility. This part also maintains Active status and ROHS3 compliance. The primary difference is the device grade designation (IM vs. AIM), which does not affect the specified electrical parameters or mechanical compatibility.

Both substitute parts are pin-compatible and functionally equivalent for applications requiring a 2.5V, 500mA linear regulator in 8-SOIC packaging. Selection between LP2989AIM-2.5/NOPB and LP2989IM-2.5/NOPB depends on device grade requirements and availability.

Frequently Asked Questions (FAQ)

Q: Can LP2989AIM-2.5/NOPB directly replace LP2989AIM-2.5?

A: Yes. Both parts share identical electrical specifications, output voltage, current rating, dropout voltage, and 8-SOIC package dimensions. The primary difference is product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between LP2989AIM-2.5/NOPB and LP2989IM-2.5/NOPB?

A: Both parts deliver identical electrical performance across all specified parameters. The designation difference (AIM vs. IM) indicates device grade. Both are Active products with ROHS3 compliance and Tube packaging.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 8-SOIC package with identical pinout and mechanical dimensions (0.154" width, 3.90mm).

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance status reflects manufacturing process and material composition but does not alter electrical specifications, output voltage, current capacity, or thermal performance.

Q: Which substitute should be selected for new designs?

A: Either LP2989AIM-2.5/NOPB or LP2989IM-2.5/NOPB are suitable for new designs. Both maintain Active product status and current manufacturing support. Selection depends on device grade requirements and procurement availability.