LP38692MP-3.3 Equivalent & Substitute Parts

Part Overview

The LP38692MP-3.3 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3.3V output applications. This Surface Mount device delivers 1A output current in a compact SOT-223-5 package. The main part number (LP38692MP-3.3) carries a Last Time Buy product status, making identification of equivalent alternatives essential for ongoing design support and procurement planning. Direct substitutes and parametric equivalents are available with Active product status to ensure long-term component availability.

Substiute Parts

LP38692MP-3.3

Texas InstrumentsIn Stock: 1173LP38692MP-3.3 Datasheet

Current PartRFQ

LP38692MP-3.3/NOPB

Texas InstrumentsIn Stock: 18547LP38692MP-3.3/NOPB Datasheet

DirectRFQ

LP38692MPX-3.3/NOPB

Texas InstrumentsIn Stock: 17124LP38692MPX-3.3/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP38692MP-3.3 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match identically for a part to serve as a direct substitute or parametric equivalent:

• Output voltage configuration: Positive, Fixed 3.3V
• Output current rating: 1A
• Maximum input voltage: 10V
• Voltage dropout specification: 1V @ 1A
• Quiescent current: 55 µA
• PSRR performance: 55dB (120Hz)
• Protection features: Over Temperature
• Operating temperature range: -40°C ~ 125°C
• Package type: SOT-223-5 (TO-261-5, TO-261AB)
• Mounting configuration: Surface Mount
• Compliance standards: ROHS3 Compliant, REACH Unaffected

All identified substitutes maintain identical parametric specifications and regulatory compliance with the main part number, ensuring functional and mechanical interchangeability in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

The LP38692MP-3.3 is designated Last Time Buy status. For new designs and ongoing procurement, LP38692MP-3.3/NOPB and LP38692MPX-3.3/NOPB are recommended as direct substitutes due to their Active product status and identical electrical and mechanical specifications.

Both substitute part numbers maintain full ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment with the original component. The /NOPB suffix indicates lead-free plating, consistent with modern manufacturing standards. Selection between LP38692MP-3.3/NOPB and LP38692MPX-3.3/NOPB should be based on supplier availability and procurement lead times, as both parts are parametrically equivalent and functionally interchangeable.

Frequently Asked Questions (FAQ)

Q: Can LP38692MP-3.3/NOPB be used as a direct replacement for LP38692MP-3.3?

A: Yes. LP38692MP-3.3/NOPB is a direct substitute with identical electrical parameters, package configuration, and compliance certifications. The primary difference is product status (Active vs. Last Time Buy) and the /NOPB designation indicating lead-free plating.

Q: What is the difference between LP38692MP-3.3/NOPB and LP38692MPX-3.3/NOPB?

A: Both parts are parametrically equivalent with identical electrical specifications, output voltage, current ratings, and package type (SOT-223-5). Both maintain Active product status. Selection should be based on supplier availability and procurement requirements.

Q: Are all three part numbers compatible with the same PCB layout?

A: Yes. All three part numbers use the identical SOT-223-5 package (TO-261-5, TO-261AB case), ensuring mechanical and electrical compatibility with the same PCB footprint and circuit design.

Q: What compliance certifications apply to these substitute parts?

A: All three part numbers are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: Why is the original LP38692MP-3.3 marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing this specific part number variant. Equivalent alternatives with Active status (LP38692MP-3.3/NOPB and LP38692MPX-3.3/NOPB) are available to support continued design and production requirements.