LA5693MD-AH Equivalent & Substitute Parts

Part Overview

The LA5693MD-AH is a Power Management IC (PMIC) designed for regulator driver and watchdog functions in an 8-MFP surface mount package. Manufactured by onsemi, this component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The obsolete status necessitates evaluation of functionally equivalent alternatives to maintain supply chain continuity and ensure design compatibility.

Substiute Parts

LA5693MD-AH

onsemiIn Stock: 1146LA5693MD-AH Datasheet

Current PartRFQ

TPS7A6950QDRQ1

Texas InstrumentsIn Stock: 19185TPS7A6950QDRQ1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The TPS7A6950QDRQ1 (Texas Instruments) qualifies as a substitute for the LA5693MD-AH based on the following alignment criteria:

Functional Equivalence: Both components are Power Management ICs with regulator and watchdog functionality, operating in surface mount configurations.

Package Compatibility: Both utilize 8-SOIC packages suitable for surface mount assembly. The LA5693MD-AH uses 8-SOIC (0.173", 4.40mm Width), while the TPS7A6950QDRQ1 uses 8-SOIC (0.154", 3.90mm Width). These dimensions are within acceptable tolerance ranges for standard PCB footprints.

Compliance Alignment: Both components maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory consistency.

Supply Status: The TPS7A6950QDRQ1 is classified as Active with substantial inventory availability (19,100 pcs), providing reliable sourcing compared to the obsolete LA5693MD-AH.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Component Replacement: The TPS7A6950QDRQ1 is suitable for applications requiring an active, continuously supported Power Management IC. Its Active product status ensures long-term availability and manufacturer support.

Compliance Considerations: Both components satisfy ROHS3 and REACH requirements. The TPS7A6950QDRQ1 carries Automotive grade qualification and AEC-Q100 certification, making it appropriate for automotive and high-reliability applications.

Moisture Handling: The LA5693MD-AH features MSL 1 (Unlimited), while the TPS7A6950QDRQ1 is rated MSL 3 (168 Hours). Applications with extended storage or high-humidity environments should account for the TPS7A6950QDRQ1's moisture sensitivity requirements.

Package Footprint: Both components use 8-SOIC packages with minor dimensional variations. Standard PCB design practices accommodate both package sizes without requiring significant layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the TPS7A6950QDRQ1 directly replace the LA5693MD-AH in existing designs?

A: Direct replacement is feasible for applications where the functional requirements align with the TPS7A6950QDRQ1 specifications. PCB footprint compatibility exists between the two 8-SOIC packages. Verify that your application's electrical requirements match the substitute part's output configuration and protection features.

Q: What is the significance of the MSL rating difference?

A: The LA5693MD-AH (MSL 1) has unlimited moisture exposure tolerance, while the TPS7A6950QDRQ1 (MSL 3) requires controlled storage conditions (168 hours maximum at specified humidity). For applications with extended shelf life or high-humidity environments, implement appropriate moisture control measures for the TPS7A6950QDRQ1.

Q: Are there package footprint concerns when substituting?

A: Both components use 8-SOIC packages. The LA5693MD-AH measures 0.173" (4.40mm) width, while the TPS7A6950QDRQ1 measures 0.154" (3.90mm) width. These dimensions are within standard PCB footprint tolerances for 8-SOIC packages, allowing use of existing PCB layouts without modification.

Q: What compliance advantages does the TPS7A6950QDRQ1 offer?

A: The TPS7A6950QDRQ1 carries Automotive grade classification and AEC-Q100 qualification, making it suitable for automotive and mission-critical applications. Both components maintain ROHS3 compliance and REACH Unaffected status.

Q: Why is the LA5693MD-AH classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production and support. The TPS7A6950QDRQ1's Active status ensures ongoing availability, technical support, and supply chain reliability for new designs and long-term production requirements.