LP2989AIMM-3.0 Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LP2989AIMM-3.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3V output applications with 500mA current capability in an 8-VSSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The substitute parts listed maintain identical electrical and mechanical specifications while offering active product status and improved compliance certifications.

Substiute Parts

LP2989AIMM-3.0

Texas InstrumentsIn Stock: 2098LP2989AIMM-3.0 Datasheet

Current PartRFQ

LP2989AIMM-3.0/NOPB

Texas InstrumentsIn Stock: 2141LP2989AIMM-3.0/NOPB Datasheet

Parametric EquivalentRFQ

LP2989IMM-3.0/NOPB

Texas InstrumentsIn Stock: 1230LP2989IMM-3.0/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP2989AIMM-3.0 are qualified based on strict electrical and mechanical parameter matching:

Qualifying Parameters for Substitution:

• Fixed output voltage of 3V
• Output current rating of 500mA
• Maximum input voltage of 16V
• Voltage dropout specification of 0.65V @ 500mA
• Quiescent current of 175 µA
• PSRR of 60dB (1kHz)
• Operating temperature range of -40°C to 125°C
• 8-VSSOP package configuration
• Identical protection features (Over Current, Over Temperature, Short Circuit)
• Enable control feature

The substitute parts LP2989AIMM-3.0/NOPB and LP2989IMM-3.0/NOPB meet all these criteria and are therefore direct parametric equivalents suitable for replacement in applications currently using the LP2989AIMM-3.0.

Parameter Comparison

Engineering Selection Recommendations

Both LP2989AIMM-3.0/NOPB and LP2989IMM-3.0/NOPB are direct parametric equivalents to the obsolete LP2989AIMM-3.0. Selection between these substitutes should be based on the following factors:

Product Status: Both substitute parts carry Active product status, ensuring long-term availability and manufacturing support compared to the Obsolete main part.

Compliance Certifications: Both substitutes are ROHS3 compliant, providing regulatory advantage over the non-compliant original part. Both maintain REACH Unaffected status and identical ECCN and HTSUS classifications.

Packaging Format: The original part is supplied in bulk format, while both substitutes are available in Tape & Reel (TR) format, which is standard for automated assembly processes.

Inventory Availability: LP2989AIMM-3.0/NOPB offers 2099 pieces in stock, while LP2989IMM-3.0/NOPB offers 1137 pieces in stock, providing flexibility based on procurement volume requirements.

Frequently Asked Questions (FAQ)

Q: Can LP2989AIMM-3.0/NOPB and LP2989IMM-3.0/NOPB be used interchangeably with LP2989AIMM-3.0?

A: Yes. All three parts share identical electrical specifications including 3V fixed output, 500mA current capability, 0.65V dropout voltage, and 8-VSSOP package configuration. The substitutes are direct parametric equivalents.

Q: What is the difference between LP2989AIMM-3.0/NOPB and LP2989IMM-3.0/NOPB?

A: Both parts are parametric equivalents with identical electrical and mechanical specifications. The primary differences are product status (both Active), inventory levels, and packaging format (both Tape & Reel). Selection depends on procurement requirements and availability.

Q: Why is the original LP2989AIMM-3.0 marked as Obsolete?

A: Obsolete status indicates the part is no longer in active production. The substitute parts LP2989AIMM-3.0/NOPB and LP2989IMM-3.0/NOPB maintain identical functionality while offering Active product status for continued availability.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both LP2989AIMM-3.0/NOPB and LP2989IMM-3.0/NOPB are ROHS3 compliant, whereas the original LP2989AIMM-3.0 is RoHS non-compliant. This provides regulatory compliance advantage for new designs.

Q: Does the packaging format change affect circuit board design?

A: No. All three parts use the same 8-VSSOP package configuration with identical pin assignments and mechanical dimensions (0.118", 3.00mm Width). The difference between bulk and Tape & Reel format is only in supply method, not in the component itself.

Q: What protection features are included in these regulators?

A: All three parts include Over Current, Over Temperature, and Short Circuit protection, ensuring safe operation across the specified -40°C to 125°C operating temperature range.