LP2989AIMMX-5.0 Equivalent & Substitute Parts

Part Overview

The LP2989AIMMX-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 part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The device provides integrated protection features including over-current, over-temperature, and short-circuit protection, with an enable control feature for power management applications.

Substiute Parts

LP2989AIMMX-5.0

Texas InstrumentsIn Stock: 2179LP2989AIMMX-5.0 Datasheet

Current PartRFQ

LP2989AIMMX-5.0/NOPB

Texas InstrumentsIn Stock: 1074LP2989AIMMX-5.0/NOPB Datasheet

DirectRFQ

LP2989AIMM-5.0/NOPB

Texas InstrumentsIn Stock: 5978LP2989AIMM-5.0/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP2989AIMMX-5.0 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters (Must Match):

• Output voltage: 5V fixed
• Maximum input voltage: 16V
• Output current capacity: 500mA
• Voltage dropout: 0.65V @ 500mA
• Quiescent current: 175 µA
• PSRR: 60dB (1kHz)
• Protection features: Over Current, Over Temperature, Short Circuit
• Control features: Enable function
• Operating temperature range: -40°C ~ 125°C

Mechanical Parameters (Must Match):

• Package type: 8-VSSOP
• Mounting type: Surface Mount
• Physical dimensions: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Compliance Parameters:

• RoHS status and REACH compliance
• Moisture sensitivity level: 1 (Unlimited)

The LP2989AIMMX-5.0 has two qualified substitutes within the LP2989 series that maintain identical electrical and mechanical specifications while differing in packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

LP2989AIMMX-5.0/NOPB (Direct Substitute - Recommended for New Designs)

This part is the direct equivalent of the obsolete LP2989AIMMX-5.0, maintaining identical electrical and mechanical specifications. The primary advantage is active product status, ensuring long-term availability and supply chain stability. The part is ROHS3 compliant, meeting current environmental and regulatory requirements. Packaging in Tape & Reel format is standard for automated assembly processes. This part is the preferred choice for new production designs and ongoing procurement.

LP2989AIMM-5.0/NOPB (Parametric Equivalent - Alternative Option)

This part provides identical electrical performance and package specifications but differs in packaging format (Cut Tape instead of Tape & Reel). Product status is Last Time Buy, indicating limited future availability. ROHS3 compliance is maintained. This part is suitable for applications where Cut Tape packaging is acceptable or preferred, but procurement should account for the Last Time Buy status and plan accordingly for long-term supply requirements.

Frequently Asked Questions (FAQ)

Q: Can LP2989AIMMX-5.0/NOPB be used as a direct replacement for LP2989AIMMX-5.0?

A: Yes. Both parts are electrically and mechanically identical. The primary difference is packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete). The /NOPB suffix indicates lead-free, RoHS3 compliant construction.

Q: What is the difference between LP2989AIMMX-5.0/NOPB and LP2989AIMM-5.0/NOPB?

A: Both parts deliver identical electrical performance and operate in the same 8-VSSOP package. The difference is packaging format: LP2989AIMMX-5.0/NOPB uses Tape & Reel packaging, while LP2989AIMM-5.0/NOPB uses Cut Tape packaging. LP2989AIMM-5.0/NOPB has Last Time Buy status, meaning availability will eventually cease.

Q: Are there any compatibility concerns when substituting these parts?

A: No compatibility concerns exist between these three parts. All three maintain identical electrical specifications, output voltage, current capacity, protection features, and operating temperature range. Physical package dimensions and mounting type are identical, allowing direct PCB-level substitution without design modifications.

Q: What does RoHS3 compliance mean for these substitutes?

A: ROHS3 compliance indicates the parts meet Restriction of Hazardous Substances Directive requirements, restricting the use of specific hazardous materials. The original LP2989AIMMX-5.0 is RoHS non-compliant, while both substitutes are ROHS3 compliant, making them suitable for applications with environmental and regulatory compliance requirements.

Q: Should I consider the Last Time Buy status of LP2989AIMM-5.0/NOPB?

A: Yes. Last Time Buy status indicates this part will eventually be discontinued. For new designs or long-term production requirements, LP2989AIMMX-5.0/NOPB with Active status is the recommended choice to ensure sustained supply chain availability.

Q: Are these parts suitable for automated assembly?

A: LP2989AIMMX-5.0/NOPB in Tape & Reel format is optimized for automated pick-and-place assembly. LP2989AIMM-5.0/NOPB in Cut Tape format is suitable for manual or semi-automated assembly processes. Both maintain the same 8-VSSOP package footprint and mounting specifications.