LP38693MP-5.0 Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LP38693MP-5.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 5V output applications with 500mA current capacity in SOT-223-5 surface mount packaging. This component is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity. The substitute parts listed maintain identical electrical and mechanical specifications while offering improved product status and compliance certifications.

Substiute Parts

LP38693MP-5.0

Texas InstrumentsIn Stock: 19372LP38693MP-5.0 Datasheet

Current PartRFQ

LP38693MP-5.0/NOPB

Texas InstrumentsIn Stock: 25008LP38693MP-5.0/NOPB Datasheet

Parametric EquivalentRFQ

LP38693MPX-5.0/NOPB

Texas InstrumentsIn Stock: 1666LP38693MPX-5.0/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LP38693MP-5.0 is determined by strict equivalence across the following critical parameters:

• Output voltage configuration: Positive fixed 5V
• Output current capacity: 500mA
• Maximum input voltage: 10V
• Voltage dropout specification: 0.45V @ 500mA
• Package and pinout: SOT-223-5 (TO-261-5, TO-261AB)
• Operating temperature range: -40°C to 125°C
• Control and protection features: Enable function and Over Temperature protection

The identified substitute parts LP38693MP-5.0/NOPB and LP38693MPX-5.0/NOPB maintain complete parametric equivalence to the main part. Differences exist only in product status, packaging format, and compliance certifications, not in electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

For new designs and production applications, LP38693MP-5.0/NOPB is the primary recommended substitute. This part maintains complete electrical and mechanical equivalence while offering active product status and ROHS3 compliance certification. The /NOPB suffix indicates halogen-free lead-free construction, meeting modern environmental and regulatory requirements.

LP38693MPX-5.0/NOPB serves as a secondary equivalent option, providing identical electrical performance and compliance status. Selection between these two active alternatives depends on packaging format requirements: Cut Tape & Digi-Reel® format for LP38693MP-5.0/NOPB or Tape & Reel format for LP38693MPX-5.0/NOPB.

The obsolete status of LP38693MP-5.0 necessitates transition to one of the active equivalents for procurement and design continuity.

Frequently Asked Questions (FAQ)

Q: Can LP38693MP-5.0/NOPB be used as a direct replacement for LP38693MP-5.0?

A: Yes. Both parts are parametrically identical across all electrical specifications including output voltage, current capacity, dropout voltage, and operating temperature range. The primary differences are product status (active vs. obsolete) and RoHS compliance certification.

Q: What is the difference between LP38693MP-5.0/NOPB and LP38693MPX-5.0/NOPB?

A: These parts are electrically and mechanically equivalent. The difference lies in packaging format: LP38693MP-5.0/NOPB is supplied in Cut Tape & Digi-Reel® format, while LP38693MPX-5.0/NOPB is supplied in Tape & Reel format. Selection depends on assembly line requirements and component handling specifications.

Q: Are the substitute parts pin-compatible with the original LP38693MP-5.0?

A: Yes. All three parts use identical SOT-223-5 packaging (TO-261-5, TO-261AB), ensuring complete pin compatibility and PCB layout compatibility.

Q: What does the /NOPB suffix indicate?

A: The /NOPB suffix designates halogen-free, lead-free construction compliant with RoHS3 regulations. This certification is required for many modern applications and supply chain requirements.

Q: Is there any performance difference between these parts?

A: No. All three parts deliver identical electrical performance: 5V fixed output, 500mA current capacity, 0.45V maximum dropout at rated current, and 55dB PSRR at 120Hz.