LP3982IMM-3.0 Equivalent & Substitute Parts

Part Overview

The LP3982IMM-3.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 300mA output current at a fixed 3V output with a maximum dropout voltage of 0.22V at 200mA. The part is classified as Last Time Buy, indicating discontinued production. Identifying equivalent substitute parts is essential for ongoing design support, inventory management, and long-term product availability assurance.

Substiute Parts

LP3982IMM-3.0

Texas InstrumentsIn Stock: 21080LP3982IMM-3.0 Datasheet

Current PartRFQ

LP3982IMM-3.0/NOPB

Texas InstrumentsIn Stock: 1732LP3982IMM-3.0/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP3982IMM-3.0 is determined by strict equivalence across the following critical parameters:

• Output voltage specification (3V fixed)
• Maximum output current capability (300mA)
• Input voltage rating (6V maximum)
• Dropout voltage performance (0.22V @ 200mA)
• Quiescent current (270 µA)
• Package form factor (8-VSSOP)
• Mounting technology (Surface Mount)
• Operating temperature range (-40°C ~ 85°C)
• Protection feature set (Over Current, Over Temperature, Reverse Polarity)
• Control features (Enable function)

The LP3982IMM-3.0/NOPB qualifies as a parametric equivalent based on identical electrical specifications and package compatibility. The primary distinction is packaging format: Cut Tape (CT) & Digi-Reel® versus Tape & Reel (TR).

Parameter Comparison

Engineering Selection Recommendations

The LP3982IMM-3.0/NOPB is a direct parametric equivalent suitable for replacement applications. The primary consideration is product lifecycle status: the original LP3982IMM-3.0 is Last Time Buy, while the LP3982IMM-3.0/NOPB maintains Active status, ensuring continued availability and supply chain reliability.

Both parts maintain identical ROHS3 compliance, REACH unaffected status, and MSL 1 rating, confirming regulatory and environmental equivalence. The packaging format difference (Cut Tape versus Tape & Reel) reflects distribution method only and does not affect electrical or mechanical compatibility in surface mount assembly processes.

Selection should prioritize the LP3982IMM-3.0/NOPB for new designs and ongoing production to ensure long-term component availability and supply continuity.

Frequently Asked Questions (FAQ)

Q: Can LP3982IMM-3.0/NOPB replace LP3982IMM-3.0 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The /NOPB variant maintains Active product status, providing superior supply chain continuity.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) & Digi-Reel® and Tape & Reel (TR) represent different distribution formats for the same component. Both deliver the part in 8-VSSOP package form. Tape & Reel is standard for high-volume automated assembly; Cut Tape accommodates lower-volume or mixed-component requirements. Assembly compatibility is identical.

Q: Are there any electrical performance differences between these parts?

A: No. Output voltage, current rating, dropout voltage, quiescent current, and all protection features are identical. Operating temperature range, control features, and thermal performance specifications match exactly.

Q: Why is the original part marked Last Time Buy?

A: Last Time Buy status indicates Texas Instruments has discontinued production of the LP3982IMM-3.0. The LP3982IMM-3.0/NOPB remains in active production, making it the recommended choice for ongoing applications.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both LP3982IMM-3.0 and LP3982IMM-3.0/NOPB are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.