LP2985AIM5-2.9 Equivalent & Substitute Parts

Part Overview

The LP2985AIM5-2.9 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 150mA output current with a fixed 2.9V output and operates across an input voltage range up to 16V. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity.

Substiute Parts

LP2985AIM5-2.9

Texas InstrumentsIn Stock: 3307LP2985AIM5-2.9 Datasheet

Current PartRFQ

LP2985AIM5-2.9/NOPB

Texas InstrumentsIn Stock: 1960LP2985AIM5-2.9/NOPB Datasheet

DirectRFQ

LP2985A-29DBVR

Texas InstrumentsIn Stock: 6349LP2985A-29DBVR Datasheet

Parametric EquivalentRFQ

LP2985IM5-2.9/NOPB

Texas InstrumentsIn Stock: 2420LP2985IM5-2.9/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP2985AIM5-2.9 is determined by strict equivalence across the following critical parameters:

• Output voltage: 2.9V fixed
• Output current capability: 150mA
• Input voltage range: up to 16V maximum
• Package type: SOT-23-5 (SC-74A, SOT-753)
• Surface mount configuration
• Control features: Enable function
• Protection: Over Current, Over Temperature, Short Circuit

The substitute parts listed maintain identical electrical specifications and mechanical compatibility, ensuring direct functional replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

For new designs or procurement requiring RoHS3 compliance, LP2985A-29DBVR is the recommended selection. This part maintains active product status with full parametric equivalence to the obsolete LP2985AIM5-2.9 while meeting current environmental compliance standards.

LP2985AIM5-2.9/NOPB and LP2985IM5-2.9/NOPB provide direct parametric equivalence but retain obsolete status. These parts are suitable for legacy system maintenance where RoHS compliance is not a requirement.

All substitute parts share identical electrical performance, thermal characteristics, and package configuration, ensuring pin-for-pin compatibility and functional interchangeability within the specified operating parameters.

Frequently Asked Questions (FAQ)

Q: Can LP2985A-29DBVR replace LP2985AIM5-2.9 in existing designs?

A: Yes. Both parts deliver identical electrical specifications: 2.9V fixed output, 150mA current capability, 0.58V maximum dropout voltage, and 45dB PSRR. The SOT-23-5 package ensures mechanical compatibility. The primary difference is product status and RoHS compliance.

Q: What is the difference between LP2985AIM5-2.9/NOPB and LP2985IM5-2.9/NOPB?

A: Both parts are parametrically equivalent with identical electrical performance and SOT-23-5 packaging. The difference lies in packaging format: LP2985AIM5-2.9/NOPB is supplied in Tape & Reel, while LP2985IM5-2.9/NOPB is supplied in Cut Tape & Digi-Reel format.

Q: Why is the main part number listed as obsolete?

A: LP2985AIM5-2.9 has been discontinued by Texas Instruments. Substitute parts with active status, such as LP2985A-29DBVR, are available for ongoing procurement and new designs.

Q: Are there any electrical performance differences between the substitute parts?

A: No. All listed substitute parts maintain identical output voltage (2.9V), output current (150mA), dropout voltage (0.58V @ 150mA), quiescent current (95 µA), and PSRR (45dB at 1kHz).

Q: What packaging options are available for substitutes?

A: All substitute parts use the SOT-23-5 package (SC-74A, SOT-753). Packaging formats vary: Tape & Reel (TR) or Cut Tape (CT) & Digi-Reel. Verify packaging format requirements before procurement.

Q: Is RoHS compliance required for my application?

A: If RoHS3 compliance is mandatory, select LP2985A-29DBVR, LP2985AIM5-2.9/NOPB, or LP2985IM5-2.9/NOPB. The original LP2985AIM5-2.9 is RoHS non-compliant.