LP2980IM5-3.8 Equivalent & Substitute Parts

Part Overview

The LP2980IM5-3.8 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers a fixed 3.8V output at 50mA with integrated protection features including over-current, over-temperature, and short-circuit protection. The part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and production continuity. Surface-mount SOT-23-5 packaging enables integration into compact electronic assemblies across industrial, consumer, and embedded system applications.

Substiute Parts

LP2980IM5-3.8

Texas InstrumentsIn Stock: 724LP2980IM5-3.8 Datasheet

Current PartRFQ

LP2980IM5-3.8/NOPB

Texas InstrumentsIn Stock: 4359LP2980IM5-3.8/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP2980IM5-3.8 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 3.8V
• Output current capability of 50mA
• Maximum input voltage of 16V
• Dropout voltage specification of 0.22V @ 50mA
• Quiescent current of 95 µA
• SOT-23-5 package configuration
• Positive fixed output configuration with single regulator
• Enable control feature
• Over-current, over-temperature, and short-circuit protection

The LP2980IM5-3.8/NOPB represents a parametric equivalent from the same manufacturer with identical electrical specifications and package type. The primary distinction lies in packaging format (Tape & Reel versus bulk) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The LP2980IM5-3.8/NOPB serves as the direct parametric equivalent for the LP2980IM5-3.8. Both parts maintain identical electrical performance across all specified parameters including output voltage, current delivery, dropout characteristics, and protection mechanisms.

Selection between these two variants should be based on:

• RoHS compliance requirements: The LP2980IM5-3.8/NOPB meets ROHS3 compliance, whereas the base LP2980IM5-3.8 is RoHS non-compliant. Applications subject to RoHS directives or customer specifications requiring RoHS compliance should utilize the /NOPB variant.

• Packaging and supply chain considerations: The LP2980IM5-3.8/NOPB is supplied in Tape & Reel format, suitable for automated assembly processes. The base variant is supplied in bulk packaging. Production volume and assembly methodology should inform packaging selection.

• Inventory availability: Current stock levels differ between variants. The LP2980IM5-3.8/NOPB maintains higher inventory (4296 units) compared to the base part (708 units).

Both parts carry obsolete product status, indicating discontinued manufacturing. Long-term design strategies should evaluate alternative active linear regulators with equivalent specifications for new designs.

Frequently Asked Questions (FAQ)

Q: Are LP2980IM5-3.8 and LP2980IM5-3.8/NOPB electrically interchangeable?

A: Yes. Both parts deliver identical electrical performance across all specified parameters including 3.8V fixed output, 50mA current capability, 0.22V dropout voltage, and protection features. They are pin-compatible in SOT-23-5 packaging.

Q: What is the difference between LP2980IM5-3.8 and LP2980IM5-3.8/NOPB?

A: The primary differences are packaging format (bulk versus Tape & Reel) and RoHS compliance status. The /NOPB variant meets ROHS3 compliance while the base part does not. Electrical specifications remain identical.

Q: Can I use LP2980IM5-3.8/NOPB in applications originally designed for LP2980IM5-3.8?

A: Yes, the /NOPB variant is a direct substitute. Verify that your application's RoHS compliance requirements align with the selected part variant.

Q: Why is the LP2980IM5-3.8 marked as obsolete?

A: Obsolete status indicates Texas Instruments has discontinued manufacturing. Existing inventory may be available through authorized distributors, but long-term availability is not guaranteed.

Q: What packaging considerations apply to these parts?

A: Both parts use SOT-23-5 (SC-74A) surface-mount packaging. The LP2980IM5-3.8/NOPB is supplied in Tape & Reel format for automated pick-and-place assembly, while the base part is supplied in bulk. Verify your assembly process compatibility before selection.

Q: Are there active alternatives to the LP2980IM5-3.8?

A: The LP2980IM5-3.8 is obsolete. For new designs requiring equivalent functionality, consult Texas Instruments' current linear regulator portfolio for active alternatives with matching electrical specifications.