LP3892EMR-1.8 Equivalent & Substitute Parts

Part Overview

The LP3892EMR-1.8 is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) device. It delivers a fixed positive 1.8V output at 1.5A with integrated protection features including over-current, over-temperature, and short-circuit protection. The device operates across the industrial temperature range of -40°C to 125°C and is housed in an 8-PowerSOIC package.

The LP3892EMR-1.8 is marked as obsolete, making equivalent and substitute parts necessary for ongoing design support, production continuity, and component sourcing. Active alternatives with identical or superior electrical characteristics are available to maintain system functionality.

Substiute Parts

LP3892EMR-1.8

Texas InstrumentsIn Stock: 1069LP3892EMR-1.8 Datasheet

Current PartRFQ

LP3882EMR-1.8/NOPB

National SemiconductorIn Stock: 5783LP3882EMR-1.8/NOPB Datasheet

Parametric EquivalentRFQ

LP3892EMR-1.8/NOPB

Texas InstrumentsIn Stock: 1244LP3892EMR-1.8/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP3892EMR-1.8 is determined by the following critical parameters:

• Fixed output voltage of 1.8V
• Output current capability of 1.5A
• Maximum input voltage of 5.5V
• Operating temperature range of -40°C to 125°C
• 8-PowerSOIC package footprint compatibility
• Integrated protection features (over-current, over-temperature, short-circuit)
• Enable control functionality

Parts meeting all these electrical and mechanical specifications are classified as direct equivalents or parametric substitutes. Voltage dropout characteristics, quiescent current, and product status (active vs. obsolete) are secondary differentiators that inform selection priority but do not disqualify substitution.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the obsolete LP3892EMR-1.8, the following selection criteria apply:

LP3892EMR-1.8/NOPB (Texas Instruments) is the primary direct replacement. This part maintains identical electrical specifications and package compatibility while offering active product status and ROHS3 compliance. The /NOPB suffix indicates lead-free construction, aligning with modern manufacturing standards.

LP3882EMR-1.8/NOPB (National Semiconductor) serves as a parametric equivalent with superior performance characteristics. The reduced voltage dropout of 0.32V @ 1.5A (compared to 0.55V) results in lower power dissipation and improved thermal performance. This part is actively manufactured and suitable for designs where dropout voltage optimization is beneficial.

Selection between LP3892EMR-1.8/NOPB and LP3882EMR-1.8/NOPB depends on design priorities: direct specification matching favors the LP3892EMR-1.8/NOPB, while improved efficiency and lower heat generation favor the LP3882EMR-1.8/NOPB.

Frequently Asked Questions (FAQ)

Q: Can LP3882EMR-1.8/NOPB replace LP3892EMR-1.8 in existing designs?

A: Yes. Both parts share identical output voltage (1.8V), output current (1.5A), input voltage rating (5.5V), operating temperature range (-40°C to 125°C), and package type (8-PowerSOIC). The LP3882EMR-1.8/NOPB offers superior dropout voltage performance (0.32V vs. 0.55V), making it a direct functional substitute with improved efficiency.

Q: What is the difference between LP3892EMR-1.8 and LP3892EMR-1.8/NOPB?

A: The /NOPB suffix indicates lead-free (Pb-free) construction and RoHS3 compliance. Both parts are from Texas Instruments with identical electrical specifications. The /NOPB variant is the active production version; the non-suffixed variant is obsolete.

Q: Are these parts pin-compatible?

A: Yes. All three parts use the 8-PowerSOIC package with 0.154" width and 3.90mm dimensions, ensuring direct PCB footprint compatibility without layout modifications.

Q: Which substitute offers the best thermal performance?

A: The LP3882EMR-1.8/NOPB provides superior thermal characteristics due to its lower dropout voltage (0.32V @ 1.5A vs. 0.55V @ 1.5A), resulting in reduced power dissipation and lower junction temperature under full-load conditions.

Q: Are there any compliance differences between the substitutes?

A: LP3892EMR-1.8/NOPB is ROHS3 compliant with lead-free construction. The original LP3892EMR-1.8 is RoHS non-compliant. LP3882EMR-1.8/NOPB compliance status is not specified in available documentation. For applications requiring RoHS certification, LP3892EMR-1.8/NOPB is the recommended choice.