AP7343Q-28W5-7 Equivalent & Substitute Parts

Part Overview

The AP7343Q-28W5-7 is a linear voltage regulator IC from Diodes Incorporated designed for power management applications. It delivers a fixed positive output of 2.8V at 300mA with integrated protection features including over-current, over-temperature, and short-circuit protection. The device is qualified to AEC-Q100 automotive standards and operates across the temperature range of -40°C to 125°C. This part is currently in active production status with 3,894 units available in inventory. Equivalent substitute parts are identified based on matching electrical specifications and package compatibility to support design flexibility and supply chain continuity.

Substiute Parts

AP7343Q-28W5-7

Diodes IncorporatedIn Stock: 3915AP7343Q-28W5-7 Datasheet

Current PartRFQ

AP7343DQ-28W5-7

Diodes IncorporatedIn Stock: 1562AP7343DQ-28W5-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP7343Q-28W5-7 are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

• Fixed output voltage of 2.8V
• Output current rating of 300mA
• Maximum input voltage of 5.25V
• Voltage dropout specification of 0.32V @ 300mA
• Quiescent current of 60 µA
• PSRR of 75dB (1kHz)
• SOT-25 package configuration
• Automotive grade qualification (AEC-Q100)
• Operating temperature range of -40°C to 125°C
• ROHS3 compliance

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. The AP7343DQ-28W5-7 meets all specified criteria and is therefore a valid substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the AP7343Q-28W5-7 and AP7343DQ-28W5-7 are active production parts from Diodes Incorporated with identical electrical specifications and package configurations. Both parts carry automotive grade qualification and AEC-Q100 certification, making them suitable for automotive applications. Both are ROHS3 compliant and carry unlimited moisture sensitivity level (MSL 1). Selection between these parts may be based on inventory availability, lead time, or specific procurement requirements, as they are electrically and mechanically interchangeable.

Frequently Asked Questions (FAQ)

Q: Can the AP7343DQ-28W5-7 be used as a direct replacement for the AP7343Q-28W5-7?

A: Yes. Both parts are manufactured by Diodes Incorporated and share identical electrical specifications, output voltage, current rating, dropout voltage, quiescent current, PSRR, package type, operating temperature range, and automotive qualifications. They are parametric equivalents.

Q: Are there any package differences between these parts?

A: No. Both parts use the SOT-25 package (SC-74A, SOT-753 designation). Pin configuration and physical dimensions are identical.

Q: Do both parts meet automotive standards?

A: Yes. Both the AP7343Q-28W5-7 and AP7343DQ-28W5-7 are automotive grade and qualified to AEC-Q100 standards.

Q: What is the difference between the Q and DQ designations in the part numbers?

A: The Q and DQ designations represent different manufacturing codes or tape reel configurations from Diodes Incorporated. The electrical and functional specifications remain identical.

Q: Are both parts ROHS3 compliant?

A: Yes. Both parts are ROHS3 compliant and carry MSL 1 (unlimited) moisture sensitivity level.