LP2985IM5-6.1 Equivalent & Substitute Parts

Part Overview

The LP2985IM5-6.1 is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. This device provides a fixed positive output of 6.1V at 150mA in a surface-mount SOT-23-5 package. The part is currently listed as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity.

Substiute Parts

LP2985IM5-6.1

Texas InstrumentsIn Stock: 821LP2985IM5-6.1 Datasheet

Current PartRFQ

LP2985AIM5-6.1/NOPB

Texas InstrumentsIn Stock: 9718LP2985AIM5-6.1/NOPB Datasheet

Parametric EquivalentRFQ

LP2985AIM5X-6.1/NOPB

Texas InstrumentsIn Stock: 3340LP2985AIM5X-6.1/NOPB Datasheet

Parametric EquivalentRFQ

LP2985IM5-6.1/NOPB

Texas InstrumentsIn Stock: 5594LP2985IM5-6.1/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP2985IM5-6.1 is determined by strict equivalence across the following critical parameters:

• Fixed output voltage of 6.1V
• Output current capability of 150mA
• Maximum input voltage of 16V
• Dropout voltage specification of 0.58V @ 150mA
• Quiescent current of 95 µA
• SOT-23-5 package configuration
• Operating temperature range of -40°C to 125°C
• Identical protection features (Over Current, Over Temperature, Short Circuit)
• Enable control feature

All identified substitute parts maintain these electrical and mechanical specifications. Differences in product status and RoHS compliance are noted but do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the LP2985IM5-6.1, the following selection criteria apply:

LP2985AIM5X-6.1/NOPB is the preferred substitute. This part maintains full electrical and mechanical equivalence while offering active product status and ROHS3 compliance. The Tape & Reel packaging format supports automated assembly processes.

LP2985AIM5-6.1/NOPB and LP2985IM5-6.1/NOPB are functionally equivalent alternatives. Both provide ROHS3 compliance and Tape & Reel packaging. LP2985AIM5-6.1/NOPB offers higher inventory availability. Both parts carry obsolete status.

All three substitute parts are direct functional replacements with no design modifications required. Selection between them should be based on product status requirements, compliance certifications, and supply chain availability for your specific application.

Frequently Asked Questions (FAQ)

Q: Can LP2985AIM5-6.1/NOPB be used as a direct replacement for LP2985IM5-6.1?

A: Yes. Both parts are electrically and mechanically identical. The primary differences are product status (obsolete vs. obsolete) and packaging format (bulk vs. Tape & Reel). No circuit modifications are required.

Q: What is the advantage of LP2985AIM5X-6.1/NOPB over other substitutes?

A: LP2985AIM5X-6.1/NOPB maintains active product status, ensuring continued manufacturer support and availability. All three substitutes are electrically equivalent.

Q: Are all substitute parts RoHS compliant?

A: LP2985AIM5-6.1/NOPB, LP2985AIM5X-6.1/NOPB, and LP2985IM5-6.1/NOPB are all ROHS3 compliant. The original LP2985IM5-6.1 is RoHS non-compliant.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) and bulk packaging formats contain identical components. Packaging format selection depends on assembly process requirements and order quantities.

Q: Are there any pin configuration differences between these parts?

A: No. All parts use the SOT-23-5 package with identical pin assignments and functionality.

Q: What is the significance of the /NOPB designation?

A: The /NOPB suffix indicates lead-free (Pb-free) RoHS compliance. Parts without this designation may contain lead.