LSP2015CAAD150 Equivalent & Substitute Parts

Part Overview

The LSP2015CAAD150 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed output applications. This device delivers 300mA output current with a fixed 1.5V output and is housed in a SOT-23-5 surface mount package. The part is currently in Last Time Buy status, making identification of suitable alternatives essential for ongoing design support and procurement planning.

Substiute Parts

LSP2015CAAD150

Diodes IncorporatedIn Stock: 19554LSP2015CAAD150 Datasheet

Current PartRFQ

AP7343D-15W5-7

Diodes IncorporatedIn Stock: 53209AP7343D-15W5-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LSP2015CAAD150 is determined by the following critical parameters:

• Fixed output voltage of 1.5V
• 300mA output current capability
• Positive output configuration
• Surface mount packaging compatibility
• Operating temperature range of -40°C to 85°C
• Over current and short circuit protection

The AP7343D-15W5-7 qualifies as a direct substitute based on matching these core electrical specifications. Both devices are manufactured by Diodes Incorporated and share identical output voltage, current rating, and temperature operating range. The substitute maintains functional equivalence for applications requiring these specific performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The AP7343D-15W5-7 is the recommended substitute for the LSP2015CAAD150. The substitute part is in Active product status, ensuring continued availability and manufacturing support, whereas the original part is designated Last Time Buy. Both devices are manufactured by Diodes Incorporated and maintain identical core electrical specifications for output voltage and current delivery.

The AP7343D-15W5-7 demonstrates improved performance characteristics in dropout voltage (0.44V versus 1.2V) and power supply rejection ratio (75dB versus 60dB), making it suitable for applications with tighter power budget constraints. The substitute is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the AP7343D-15W5-7 directly replace the LSP2015CAAD150 in existing designs?

A: Yes. Both devices deliver identical fixed 1.5V output at 300mA with matching operating temperature ranges and surface mount packaging. The substitute maintains functional equivalence for applications designed around the original part specifications.

Q: What is the difference in dropout voltage between these parts?

A: The LSP2015CAAD150 has a maximum dropout voltage of 1.2V at 300mA, while the AP7343D-15W5-7 has a maximum dropout voltage of 0.44V at 300mA. The substitute offers lower dropout performance, which may benefit applications with limited input voltage headroom.

Q: Are there packaging differences between these parts?

A: Both parts use SC-74A (SOT-753) surface mount packages. The LSP2015CAAD150 is supplied in standard packaging, while the AP7343D-15W5-7 is available in Tape & Reel format. PCB footprints are identical.

Q: Why is the original part designated Last Time Buy?

A: Last Time Buy status indicates the manufacturer is discontinuing production. The AP7343D-15W5-7, maintained in Active status by Diodes Incorporated, provides continuity for new designs and ongoing production requirements.

Q: What protection features does the substitute provide?

A: The AP7343D-15W5-7 includes over current protection. The original LSP2015CAAD150 includes over current, over temperature, and short circuit protection. Applications requiring over temperature or short circuit protection should evaluate this difference against specific design requirements.