LSP2015CAAD120 Equivalent & Substitute Parts

Part Overview

The LSP2015CAAD120 is a linear voltage regulator IC from Diodes Incorporated designed for positive fixed output applications. This device delivers 300mA output current with a fixed 1.2V 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 substitute components essential for ongoing design support and procurement planning.

Substiute Parts

LSP2015CAAD120

Diodes IncorporatedIn Stock: 1031LSP2015CAAD120 Datasheet

Current PartRFQ

AP7343D-12W5-7

Diodes IncorporatedIn Stock: 75149AP7343D-12W5-7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LSP2015CAAD120 is determined by the following critical parameters:

• Fixed output voltage of 1.2V
• Output current capability of 300mA
• Maximum input voltage tolerance (5.5V for main part)
• Operating temperature range (-40°C ~ 85°C)
• Surface mount packaging compatibility
• Protection feature set (Over Current, Over Temperature, Short Circuit)

The AP7343D-12W5-7 qualifies as a substitute based on matching these core electrical specifications and functional requirements. Both devices are manufactured by Diodes Incorporated and maintain the same output voltage and current ratings within the specified operating conditions.

Parameter Comparison

Engineering Selection Recommendations

The AP7343D-12W5-7 is the recommended substitute for the LSP2015CAAD120. Selection is based on the following factors:

• Both devices maintain identical fixed output voltage (1.2V) and output current (300mA) specifications
• The AP7343D-12W5-7 is in Active product status, ensuring continued availability and support
• The substitute demonstrates improved electrical performance with lower dropout voltage (0.58V vs. 1.2V) and higher PSRR (75dB vs. 60dB)
• Both devices operate across the same temperature range (-40°C ~ 85°C)
• The AP7343D-12W5-7 carries RoHS3 compliance and REACH Unaffected status, meeting current regulatory requirements
• Packaging compatibility is maintained with both devices in SC-74A/SOT-753 form factor

Frequently Asked Questions (FAQ)

Q: Can the AP7343D-12W5-7 directly replace the LSP2015CAAD120 in existing designs?

A: Yes. Both devices provide identical output voltage (1.2V) and current (300mA) specifications with matching operating temperature ranges and surface mount packaging. The substitute is electrically compatible for direct replacement.

Q: What are the key differences between these two parts?

A: The primary differences are product status and performance characteristics. The AP7343D-12W5-7 is in Active status versus Last Time Buy for the LSP2015CAAD120. The substitute offers superior dropout voltage performance (0.58V vs. 1.2V) and higher power supply rejection ratio (75dB vs. 60dB). Maximum input voltage is slightly lower on the substitute (5.25V vs. 5.5V).

Q: Are there packaging differences between the LSP2015CAAD120 and AP7343D-12W5-7?

A: Both devices use the same SC-74A/SOT-753 package form factor. The LSP2015CAAD120 is supplied in standard packaging, while the AP7343D-12W5-7 is available in Tape & Reel format. PCB layout and footprint compatibility are maintained.

Q: What is the significance of the Last Time Buy status for the LSP2015CAAD120?

A: Last Time Buy status indicates that the LSP2015CAAD120 is being discontinued. Existing inventory is limited, and no further production is planned. The AP7343D-12W5-7 provides a path forward for new designs and ongoing production requirements.

Q: Does the lower dropout voltage of the AP7343D-12W5-7 affect circuit design?

A: The lower dropout voltage (0.58V vs. 1.2V) of the substitute is advantageous, requiring less input-to-output voltage differential to maintain regulation. This improves efficiency and reduces thermal dissipation in the regulator. No circuit redesign is required; the substitute performs this function more effectively.

Q: Are there compliance or certification differences?

A: The AP7343D-12W5-7 carries explicit RoHS3 compliance and REACH Unaffected status. These certifications support current regulatory requirements for electronic components in most markets.