LP2988AIMX-3.0 Equivalent & Substitute Parts

Part Overview

The LP2988AIMX-3.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3V output applications with 200mA current capacity. This device is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The LP2988AIMX-3.0 operates across industrial temperature ranges (-40°C to 125°C) and includes integrated protection features for over-current, over-temperature, and short-circuit conditions.

Substiute Parts

LP2988AIMX-3.0

Texas InstrumentsIn Stock: 23298LP2988AIMX-3.0 Datasheet

Current PartRFQ

LP2986AIM-3.0/NOPB

National SemiconductorIn Stock: 3093LP2986AIM-3.0/NOPB Datasheet

MFR RecommendedRFQ

LP2987IMX-3.0/NOPB

Texas InstrumentsIn Stock: 892LP2987IMX-3.0/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP2988AIMX-3.0 are qualified based on electrical and mechanical parameter equivalence. The critical parameters determining substitution eligibility are:

• Fixed output voltage of 3V
• Output current capacity of 200mA
• Maximum input voltage of 16V
• Voltage dropout specification of 0.35V @ 200mA
• Quiescent current of 120 µA
• 8-SOIC package configuration (0.154", 3.90mm Width)
• Operating temperature range of -40°C to 125°C
• Identical protection feature set (Over Current, Over Temperature, Short Circuit)
• Enable control feature availability

Two substitute parts meet these criteria: the LP2986AIM-3.0/NOPB (manufacturer-recommended equivalent) and the LP2987IMX-3.0/NOPB (parametric equivalent).

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts provide full electrical and mechanical compatibility with the LP2988AIMX-3.0. Selection between them depends on product status and compliance requirements:

The LP2987IMX-3.0/NOPB is supplied in Tape & Reel packaging and maintains active product status from Texas Instruments, the original manufacturer. This part carries ROHS3 compliance and MSL Level 1 rating, matching the original device specifications. Procurement from the original manufacturer ensures design continuity and long-term availability.

The LP2986AIM-3.0/NOPB is a manufacturer-recommended equivalent from National Semiconductor with active product status. This part meets all electrical and mechanical parameters but does not specify RoHS or MSL ratings in the provided data. This option is suitable when National Semiconductor supply chain access is preferred or when cost considerations favor alternative sourcing.

Frequently Asked Questions (FAQ)

Q: Can the LP2986AIM-3.0/NOPB and LP2987IMX-3.0/NOPB be used interchangeably with the LP2988AIMX-3.0?

A: Yes. Both substitute parts match all critical electrical parameters (3V output, 200mA current, 0.35V dropout, 120 µA quiescent current) and share identical 8-SOIC packaging. Pin configuration and functional behavior are equivalent, enabling direct substitution in circuit designs.

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

A: The LP2987IMX-3.0/NOPB is from Texas Instruments (original manufacturer) in Tape & Reel packaging with specified ROHS3 and MSL Level 1 compliance. The LP2986AIM-3.0/NOPB is from National Semiconductor with equivalent electrical performance but without specified compliance documentation in the provided data.

Q: Why is the LP2988AIMX-3.0 listed as obsolete?

A: Obsolete status indicates the part is no longer in active production. The LP2987IMX-3.0/NOPB and LP2986AIM-3.0/NOPB are active alternatives that provide identical functionality for new designs and replacement applications.

Q: Are there packaging differences between these parts?

A: All three parts use 8-SOIC packaging (0.154", 3.90mm Width). The LP2987IMX-3.0/NOPB is supplied in Tape & Reel format, while packaging format for the LP2986AIM-3.0/NOPB is not specified in the provided data.

Q: Do these parts require different PCB layouts or thermal management?

A: No. Identical package geometry and electrical specifications mean no PCB layout modifications are required. Thermal management requirements remain unchanged across all three parts.