LP2989IMM-5.0 Equivalent & Substitute Parts

Part Overview

The LP2989IMM-5.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 5V output applications with 500mA current capacity in an 8-VSSOP surface mount package. This device is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support existing production requirements for systems currently utilizing this regulator.

Substiute Parts

LP2989IMM-5.0

Texas InstrumentsIn Stock: 5024LP2989IMM-5.0 Datasheet

Current PartRFQ

LP2989AIMM-5.0/NOPB

Texas InstrumentsIn Stock: 5978LP2989AIMM-5.0/NOPB Datasheet

Parametric EquivalentRFQ

LP2989AIMMX-5.0/NOPB

Texas InstrumentsIn Stock: 1074LP2989AIMMX-5.0/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP2989IMM-5.0 are identified based on strict electrical and mechanical parameter matching within the linear voltage regulator category. The following parameters define substitution eligibility:

• Output voltage configuration: Positive fixed 5V output
• Output current capacity: 500mA minimum
• Input voltage tolerance: 16V maximum rating
• Voltage dropout specification: 0.65V @ 500mA
• Package compatibility: 8-VSSOP surface mount package
• Control and protection features: Enable control with Over Current, Over Temperature, and Short Circuit protection
• Operating temperature range: -40°C ~ 125°C

The LP2989IMM-5.0 has two identified parametric equivalents within the Texas Instruments LP2989 series that meet all electrical and mechanical requirements. These parts differ primarily in packaging format (Cut Tape vs. Tape & Reel) and product lifecycle status (Last Time Buy vs. Active).

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the LP2989IMM-5.0, the LP2989AIMMX-5.0/NOPB is the primary substitute selection. This part maintains identical electrical specifications and package compatibility while offering Active product status, ensuring long-term availability and supply chain stability. The LP2989AIMMX-5.0/NOPB also carries ROHS3 compliance certification, meeting modern environmental and regulatory requirements.

The LP2989AIMM-5.0/NOPB serves as a secondary equivalent option, providing the same electrical performance and ROHS3 compliance. However, its Last Time Buy status indicates limited future availability, making it suitable only for near-term production requirements or inventory consolidation.

Both substitute parts are manufactured by Texas Instruments within the LP2989 series and are pin-compatible with the original LP2989IMM-5.0, requiring no circuit redesign for implementation.

Frequently Asked Questions (FAQ)

Q: Are the LP2989AIMM-5.0/NOPB and LP2989AIMMX-5.0/NOPB electrically identical to the LP2989IMM-5.0?

A: Yes. All three parts share identical electrical specifications including 5V fixed output, 500mA current capacity, 0.65V maximum dropout voltage, 175 µA quiescent current, and 60dB PSRR at 1kHz. They are functionally equivalent for circuit operation.

Q: What is the difference between the two substitute parts?

A: The primary differences are packaging format and product lifecycle status. The LP2989AIMM-5.0/NOPB is supplied in Cut Tape format with Last Time Buy status, while the LP2989AIMMX-5.0/NOPB is supplied in Tape & Reel format with Active status. Both carry ROHS3 compliance.

Q: Can I use these substitutes in existing PCB designs without modification?

A: Yes. All three parts use the 8-VSSOP package with identical pinout and mechanical dimensions (8-TSSOP, 8-MSOP, 0.118" width, 3.00mm). No PCB layout changes are required.

Q: Why is the original LP2989IMM-5.0 marked "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status and is no longer recommended for new product development. Existing inventory remains available, but long-term supply cannot be guaranteed.

Q: Which substitute should I select for new production?

A: The LP2989AIMMX-5.0/NOPB is the recommended choice for new production due to its Active product status, ensuring continued availability and supply chain support.

Q: Are there any compliance differences between the original and substitutes?

A: Yes. The LP2989IMM-5.0 is RoHS non-compliant, while both substitute parts (LP2989AIMM-5.0/NOPB and LP2989AIMMX-5.0/NOPB) are ROHS3 compliant. All three parts maintain REACH Unaffected status and EAR99 ECCN classification.