LSP2015CAAD280 Equivalent & Substitute Parts

Part Overview

The LSP2015CAAD280 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed output applications. This device delivers 300mA output current with a fixed 2.8V output and operates across the -40°C to 85°C temperature range. The part is classified as Last Time Buy, indicating end-of-life status. Identifying qualified substitute components is essential for design continuity and procurement planning when this part reaches end-of-stock conditions.

Substiute Parts

LSP2015CAAD280

Diodes IncorporatedIn Stock: 9901LSP2015CAAD280 Datasheet

Current PartRFQ

AP7343D-28W5-7

Diodes IncorporatedIn Stock: 4002AP7343D-28W5-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LSP2015CAAD280 is determined by the following critical parameters:

• Fixed output voltage of 2.8V
• 300mA maximum output current capability
• Positive output configuration
• Surface mount packaging in SOT form factor
• Operating temperature range of -40°C to 85°C
• Linear regulator topology with integrated protection

The AP7343D-28W5-7 qualifies as a direct substitute based on matching these core electrical and mechanical specifications. Both devices maintain identical output voltage, current rating, temperature range, and mounting technology. Variations in secondary parameters such as quiescent current, PSRR, and dropout voltage do not preclude substitution when the primary functional requirements are met.

Parameter Comparison

Engineering Selection Recommendations

The AP7343D-28W5-7 is the qualified substitute for the LSP2015CAAD280 based on the following factors:

Product Status: The LSP2015CAAD280 carries Last Time Buy status, making it unsuitable for new designs or long-term production. The AP7343D-28W5-7 maintains Active status with ongoing manufacturer support and availability.

Compliance & Certifications: The AP7343D-28W5-7 is RoHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99. These certifications ensure regulatory compliance for commercial and industrial applications.

Electrical Equivalence: Both devices deliver identical output voltage (2.8V) and current (300mA) with matching temperature operating ranges. The AP7343D-28W5-7 demonstrates superior performance characteristics with lower quiescent current (60 µA vs. 100 µA) and higher PSRR (75dB vs. 60dB).

Packaging Consideration: The AP7343D-28W5-7 is supplied in SOT-25 packaging versus the SOT-23-5 of the original part. Both are surface mount form factors with compatible footprints for standard PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the AP7343D-28W5-7 directly replace the LSP2015CAAD280 in existing designs?

A: Yes. Both devices share identical output voltage (2.8V), output current (300mA), operating temperature range (-40°C to 85°C), and surface mount technology. The SOT-25 package of the substitute is mechanically compatible with SOT-23-5 footprints in standard PCB layouts.

Q: What is the significance of the Last Time Buy status on the LSP2015CAAD280?

A: Last Time Buy indicates the manufacturer will no longer produce this part after current inventory is exhausted. Designs must transition to alternative components for production continuity. The AP7343D-28W5-7 provides this continuity with Active product status.

Q: How do the quiescent current differences affect circuit performance?

A: The AP7343D-28W5-7 draws 60 µA quiescent current compared to 100 µA for the LSP2015CAAD280. This 40 µA reduction improves power efficiency in battery-powered or low-power applications without affecting primary output specifications.

Q: Are there packaging considerations for PCB redesign?

A: The AP7343D-28W5-7 uses SOT-25 packaging while the original uses SOT-23-5. Both are five-pin surface mount packages with compatible pin configurations. Standard PCB assembly equipment handles both packages without modification.

Q: What protection features are retained in the substitute part?

A: The AP7343D-28W5-7 includes Over Current protection. The original LSP2015CAAD280 provides Over Current, Over Temperature, and Short Circuit protection. Verify that the reduced protection feature set meets application requirements.

Q: Is the AP7343D-28W5-7 available in the same packaging format?

A: The substitute is supplied in Tape & Reel (TR) format, suitable for automated assembly. Inventory availability is 3962 pieces in new original stock condition.