LP3982IMM-ADJ Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LP3982IMM-ADJ is a linear voltage regulator IC from Texas Instruments designed for positive adjustable output applications. This device delivers 300mA output current in an 8-VSSOP surface mount package and operates across the -40°C to 85°C temperature range. The main part is currently in Last Time Buy status, making equivalent and substitute parts essential for ongoing design support and procurement planning. Alternative models provide direct functional equivalence or enhanced feature sets while maintaining core electrical specifications.

Substiute Parts

LP3982IMM-ADJ

Texas InstrumentsIn Stock: 15707LP3982IMM-ADJ Datasheet

Current PartRFQ

LP3982IMM-ADJ/NOPB

Texas InstrumentsIn Stock: 24538LP3982IMM-ADJ/NOPB Datasheet

DirectRFQ

LP3982IMMX-ADJ/NOPB

National SemiconductorIn Stock: 1958LP3982IMMX-ADJ/NOPB Datasheet

Parametric EquivalentRFQ

MAX8860EUA18+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2059MAX8860EUA18+T Datasheet

MFR RecommendedRFQ

MAX8860EUA27+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1162MAX8860EUA27+T Datasheet

MFR RecommendedRFQ

MAX8860EUA30+T

Analog Devices Inc./Maxim IntegratedIn Stock: 2829MAX8860EUA30+T Datasheet

MFR RecommendedRFQ

MAX8860EUA33+

Analog Devices Inc./Maxim IntegratedIn Stock: 2601MAX8860EUA33+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP3982IMM-ADJ are classified into two categories based on substitution criteria:

Direct Manufacturer Equivalents maintain identical electrical specifications, output configuration, and package form factor. These parts are interchangeable at the circuit level with no design modifications required.

Manufacturer Recommended Alternatives provide enhanced electrical performance and additional control features while maintaining core functional compatibility. These parts operate within the same voltage and current ranges but offer improved dropout voltage characteristics and expanded protection features.

The following parameters determine substitution validity:

• Output Configuration: Positive (all substitutes)
• Number of Regulators: 1 (all substitutes)
• Current - Output: 300mA (all substitutes)
• Operating Temperature: -40°C ~ 85°C (all substitutes)
• Mounting Type: Surface Mount (all substitutes)
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) (all substitutes)

Parameter Comparison

Engineering Selection Recommendations

LP3982IMM-ADJ/NOPB is the direct equivalent from Texas Instruments with Active product status. This part maintains identical electrical specifications and packaging to the main part number. Selection of this variant is appropriate for designs requiring continuity with the original LP3982IMM-ADJ specification while ensuring ongoing availability.

LP3982IMMX-ADJ/NOPB from National Semiconductor provides parametric equivalence with identical electrical performance. This part is available in Bulk packaging and maintains Active status. Packaging format differs from the main part (Bulk versus Cut Tape & Digi-Reel).

MAX8860EUA Series (MAX8860EUA18+T, MAX8860EUA27+T, MAX8860EUA30+T, MAX8860EUA33+) from Analog Devices Inc./Maxim Integrated offers enhanced electrical performance with reduced dropout voltage (0.155V typical at 300mA versus 220mV maximum). These parts provide expanded protection features including Reverse Polarity and Short Circuit protection, and include Fault Output control capability. Input voltage rating increases to 6.5V. All MAX8860EUA variants maintain Active product status and ROHS3 compliance. Selection depends on fixed output voltage requirements: 1.8V (EUA18+T), 2.77V (EUA27+T), 3V (EUA30+T), or 3.3V (EUA33+).

All substitute parts maintain the same operating temperature range, output current rating, quiescent current, and surface mount package form factor as the original LP3982IMM-ADJ.

Frequently Asked Questions (FAQ)

Q: Can LP3982IMM-ADJ/NOPB be used as a direct replacement for LP3982IMM-ADJ?

A: Yes. LP3982IMM-ADJ/NOPB is a direct equivalent with identical electrical specifications, output configuration, and package form factor. The primary difference is product status: LP3982IMM-ADJ/NOPB is Active while the original is Last Time Buy.

Q: What is the difference between the LP3982 series and MAX8860EUA series?

A: Both series deliver 300mA output current in compatible 8-VSSOP packages and operate across -40°C to 85°C. The MAX8860EUA series provides superior dropout voltage performance (0.155V typical versus 220mV maximum) and expanded protection features including Reverse Polarity and Short Circuit protection. MAX8860EUA parts also include Fault Output control capability. The LP3982 series supports fully adjustable output voltage (1.25V to 6V), while MAX8860EUA variants are available in fixed output configurations.

Q: Are the MAX8860EUA variants pin-compatible with LP3982IMM-ADJ?

A: All substitute parts share the same 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) package form factor and surface mount mounting type. Pin compatibility must be verified against specific application schematics and PCB layouts.

Q: Which MAX8860EUA variant should be selected?

A: Selection depends on required fixed output voltage. MAX8860EUA18+T provides 1.8V output, MAX8860EUA27+T provides 2.77V output, MAX8860EUA30+T provides 3V output, and MAX8860EUA33+T provides 3.3V output. All variants maintain identical electrical performance and protection features.

Q: What is the inventory status of substitute parts?

A: LP3982IMM-ADJ/NOPB has 24,522 pieces in stock. LP3982IMMX-ADJ/NOPB has 1,890 pieces. MAX8860EUA18+T has 2,040 pieces, MAX8860EUA27+T has 1,107 pieces, MAX8860EUA30+T has 2,790 pieces, and MAX8860EUA33+ has 2,500 pieces.

Q: Are all substitute parts RoHS3 compliant?

A: LP3982IMM-ADJ, LP3982IMM-ADJ/NOPB, and all MAX8860EUA variants are ROHS3 compliant. RoHS status for LP3982IMMX-ADJ/NOPB is not specified in available documentation.