LP2985IM5-4.6 Equivalent & Substitute Parts

Part Overview

The LP2985IM5-4.6 is a linear voltage regulator IC from Texas Instruments designed for positive fixed output applications. This device delivers 150mA output current with a fixed 4.6V output and operates across an input voltage range up to 16V. The part is classified as obsolete, making identification of suitable alternatives essential for ongoing design support and production continuity. Active equivalent models with identical electrical and mechanical specifications are available to ensure seamless integration into existing designs.

Substiute Parts

LP2985IM5-3.5

Texas InstrumentsIn Stock: 1019LP2985IM5-3.5 Datasheet

Current PartRFQ

LP2985IM5-3.5/NOPB

Texas InstrumentsIn Stock: 32281LP2985IM5-3.5/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LP2985IM5-4.6 is determined by strict equivalence across the following critical parameters:

• Output voltage: 4.6V fixed
• Output current capability: 150mA
• Input voltage rating: 16V maximum
• Package type: SOT-23-5 (SC-74A, SOT-753)
• Surface mount configuration
• Protection features: Over current, over temperature, short circuit
• Operating temperature range: -40°C to 125°C
• Control features: Enable function

The LP2985IM5-4.6/NOPB is a direct equivalent manufactured by Texas Instruments with identical electrical specifications and mechanical packaging. The primary distinction is product status and compliance certification, not functional capability.

Parameter Comparison

Engineering Selection Recommendations

The LP2985IM5-4.6/NOPB is the direct active equivalent for the obsolete LP2985IM5-4.6. Both parts share identical electrical performance specifications and mechanical packaging. The LP2985IM5-4.6/NOPB is currently in active production status with ROHS3 compliance certification, whereas the original part is obsolete and RoHS non-compliant. For new designs or production continuity, the LP2985IM5-4.6/NOPB is the appropriate selection. The /NOPB designation indicates lead-free plating, consistent with modern manufacturing standards. Packaging is supplied in Tape & Reel format for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can LP2985IM5-4.6/NOPB be used as a direct replacement for LP2985IM5-4.6?

A: Yes. Both parts are electrically and mechanically identical. The LP2985IM5-4.6/NOPB is the active production equivalent with updated compliance certifications.

Q: What does the /NOPB suffix indicate?

A: The /NOPB designation specifies lead-free plating on the component leads, meeting RoHS3 compliance requirements.

Q: Are there packaging differences between these parts?

A: The LP2985IM5-4.6 is supplied in bulk packaging, while the LP2985IM5-4.6/NOPB is supplied in Tape & Reel format. Both use the same SOT-23-5 package for PCB mounting.

Q: What is the output current capability?

A: Both parts deliver 150mA maximum output current at the fixed 4.6V output voltage.

Q: What is the maximum input voltage?

A: The maximum input voltage rating is 16V for both parts.

Q: What protection features are included?

A: Both parts include over current protection, over temperature protection, and short circuit protection.

Q: What is the operating temperature range?

A: Both parts operate across -40°C to 125°C.