LP38693SD-2.5/NOPB Equivalent & Substitute Parts

Part Overview

The LP38693SD-2.5/NOPB is a linear voltage regulator IC manufactured by Texas Instruments, designed for positive fixed output applications. This device delivers 500mA output current at a fixed 2.5V output voltage with a maximum dropout voltage of 0.73V at full load. The part is actively produced, AEC-Q100 qualified for automotive applications, and RoHS3 compliant. Substitute parts are identified when electrical performance, mechanical compatibility, and regulatory certifications remain equivalent across the specified parameter set.

Substiute Parts

LP38693SD-2.5/NOPB

Texas InstrumentsIn Stock: 1089LP38693SD-2.5/NOPB Datasheet

Current PartRFQ

LP38693QSD-2.5/NOPB

Texas InstrumentsIn Stock: 10193LP38693QSD-2.5/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LP38693SD-2.5/NOPB are identified based on strict equivalence across the following critical parameters:

• Fixed output voltage of 2.5V
• Output current capability of 500mA
• Maximum input voltage of 10V
• Dropout voltage specification of 0.73V @ 500mA
• 6-WDFN Exposed Pad package with surface mount configuration
• Operating temperature range of -40°C to 125°C
• Automotive grade with AEC-Q100 qualification
• RoHS3 compliance and active product status

The LP38693QSD-2.5/NOPB meets all these criteria and is classified as a parametric equivalent. Both parts share the same base product number (LP38693) and differ only in qualification level designation within the same product family.

Parameter Comparison

Engineering Selection Recommendations

Both the LP38693SD-2.5/NOPB and LP38693QSD-2.5/NOPB are active products with identical electrical specifications and mechanical compatibility. Selection between these parts is determined by:

• Availability and inventory levels
• Procurement lead times
• Cost considerations
• Existing supply chain qualifications

Both parts maintain AEC-Q100 automotive qualification and RoHS3 compliance, ensuring regulatory and quality standards are met in either configuration. The parts are interchangeable at the circuit level when package footprint and thermal requirements are equivalent.

Frequently Asked Questions (FAQ)

Q: Can LP38693QSD-2.5/NOPB be used as a direct replacement for LP38693SD-2.5/NOPB?

A: Yes. Both parts are parametric equivalents with identical electrical performance, output voltage, current rating, dropout voltage, and package configuration. They are interchangeable in circuit design and PCB layout.

Q: What is the difference between the "SD" and "QSD" designations?

A: The designation difference reflects qualification level within the Texas Instruments product family. Both parts meet AEC-Q100 automotive qualification and share identical electrical and mechanical specifications.

Q: Are the package dimensions identical?

A: Yes. Both parts use the 6-WDFN Exposed Pad package with surface mount configuration, ensuring identical PCB footprint and thermal characteristics.

Q: Do both parts meet automotive compliance requirements?

A: Yes. Both the LP38693SD-2.5/NOPB and LP38693QSD-2.5/NOPB are automotive grade with AEC-Q100 qualification and RoHS3 compliance.

Q: What is the maximum input voltage for both parts?

A: The maximum input voltage is 10V for both the LP38693SD-2.5/NOPB and LP38693QSD-2.5/NOPB.

Q: What is the dropout voltage specification?

A: The maximum dropout voltage is 0.73V at 500mA output current for both parts.