LP2986IM-3.0 Equivalent & Substitute Parts

Part Overview

The LP2986IM-3.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3V output at 200mA in an 8-SOIC surface mount package. This part is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement. Substitute parts maintain identical electrical performance and mechanical compatibility while offering improved product status and compliance certifications.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	3V
Output Current	200mA
Input Voltage (Max)	16V
Dropout Voltage (Max)	0.35V @ 200mA
Quiescent Current	120 µA
PSRR	65dB (1kHz)
Package	8-SOIC (0.154", 3.90mm Width)
Operating Temperature Range	-40°C ~ 125°C
Protection Features	Over Current, Over Temperature, Short Circuit

Substitute Part Grouping Explanation

Substitute parts for the LP2986IM-3.0 are classified based on strict electrical and mechanical parameter matching:

Direct Manufacturer Substitute: LP2986IM-3.0/NOPB maintains identical specifications with improved product status (Active vs. Obsolete) and enhanced RoHS compliance (ROHS3 Compliant vs. RoHS non-compliant). Packaging differs (Tube vs. unspecified) but electrical performance is identical.

Parametric Equivalents: LP2986AIM-3.0/NOPB and LP2987IM-3.0/NOPB are parametric equivalents that match all critical electrical parameters: 3V fixed output, 200mA output current, 16V maximum input voltage, 0.35V dropout voltage, 120 µA quiescent current, and 65dB PSRR. Both maintain the 8-SOIC package footprint and identical operating temperature range. These parts are sourced from National Semiconductor and carry Active product status.

Key Parameters for Substitution Eligibility:

Output voltage: 3V fixed
Output current: 200mA minimum
Input voltage rating: 16V or higher
Dropout voltage: 0.35V @ 200mA
Package: 8-SOIC (0.154", 3.90mm Width)
Operating temperature: -40°C ~ 125°C

Parameter Comparison

Parameter	LP2986IM-3.0	LP2986IM-3.0/NOPB	LP2986AIM-3.0/NOPB	LP2987IM-3.0/NOPB
Manufacturer	Texas Instruments	Texas Instruments	National Semiconductor	National Semiconductor
Product Status	Obsolete	Active	Active	Active
Output Voltage	3V	3V	3V	3V
Output Current	200mA	200mA	200mA	200mA
Input Voltage (Max)	16V	16V	16V	16V
Dropout Voltage (Max)	0.35V @ 200mA	0.35V @ 200mA	0.35V @ 200mA	0.35V @ 200mA
Quiescent Current	120 µA	120 µA	120 µA	120 µA
PSRR	65dB (1kHz)	65dB (1kHz)	65dB (1kHz)	65dB (1kHz)
Package	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 125°C
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Not specified	Not specified
Inventory Status	6187 Pcs	797 Pcs	3056 Pcs	3256 Pcs

Engineering Selection Recommendations

Primary Recommendation: LP2986IM-3.0/NOPB is the direct manufacturer substitute. It provides identical electrical specifications with Active product status and ROHS3 compliance, eliminating obsolescence risk while maintaining full functional compatibility.

Secondary Recommendations: LP2986AIM-3.0/NOPB and LP2987IM-3.0/NOPB are parametric equivalents suitable for applications where manufacturer source flexibility is acceptable. Both maintain Active product status and provide equivalent electrical performance across all specified parameters.

Compliance Consideration: LP2986IM-3.0/NOPB is the only substitute with documented ROHS3 compliance, making it the preferred choice for applications subject to RoHS regulations.

Frequently Asked Questions (FAQ)

Q: Can LP2986IM-3.0/NOPB be used as a direct replacement for LP2986IM-3.0?

A: Yes. LP2986IM-3.0/NOPB is electrically and mechanically identical to LP2986IM-3.0. All electrical parameters, package dimensions, and pin configurations match exactly. The primary differences are product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between LP2986AIM-3.0/NOPB and LP2987IM-3.0/NOPB?

A: Both parts are parametric equivalents with identical electrical specifications. The primary difference is the manufacturer designation within the part number (LP2986A vs. LP2987). Both maintain the same 3V output, 200mA current rating, and 8-SOIC package. Selection between these parts depends on procurement availability and supplier preference.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the 8-SOIC package with identical dimensions (0.154", 3.90mm Width). PCB footprints and land patterns are interchangeable.

Q: Why is the LP2986IM-3.0 marked as obsolete?

A: Product obsolescence is determined by the manufacturer. Substitute parts with Active status provide continued design support and manufacturing availability.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental standards, not electrical specifications. All parts maintain identical electrical performance regardless of RoHS status.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, provided the design does not impose specific manufacturer requirements. All substitute parts meet or exceed the electrical and mechanical specifications of the original LP2986IM-3.0.

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