AP7366-20SN-7 Equivalent & Substitute Parts

Part Overview

The AP7366-20SN-7 is a linear voltage regulator IC from Diodes Incorporated, designed for positive fixed output applications with 600mA current capability. This device operates with a 2V fixed output and supports input voltages up to 6V, making it suitable for low-voltage power management applications. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing design support and production requirements.

Substiute Parts

AP7366-20SN-7

Diodes IncorporatedIn Stock: 749AP7366-20SN-7 Datasheet

Current PartRFQ

AP7366EA-20SN-7

Diodes IncorporatedIn Stock: 3833AP7366EA-20SN-7 Datasheet

Parametric EquivalentRFQ

AP7366EA-20W5-7

Diodes IncorporatedIn Stock: 3957AP7366EA-20W5-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AP7366-20SN-7 is determined by strict equivalence across the following electrical and mechanical parameters:

• Output voltage: 2V fixed
• Maximum output current: 600mA
• Input voltage range: up to 6V maximum
• Quiescent current: 80 µA
• Protection features: Over Current, Over Temperature, Short Circuit
• Control features: Enable function
• Operating temperature range: -40°C ~ 85°C
• RoHS3 compliance and REACH unaffected status
• Mounting type: Surface Mount

Two active substitute parts meet these criteria. The primary distinction between substitutes is packaging format: one maintains the original 6-UDFN package, while the alternative uses SOT-25 packaging. Both are manufactured by Diodes Incorporated and share identical electrical specifications with the obsolete main part.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are active products from Diodes Incorporated and maintain full electrical equivalence to the obsolete AP7366-20SN-7. Selection between the two substitutes depends on PCB layout and packaging constraints:

AP7366EA-20SN-7 is the direct package equivalent, maintaining the 6-UDFN Exposed Pad footprint of the original part. This substitute offers improved dropout voltage performance (0.285V @ 600mA versus 0.4V), providing enhanced efficiency in applications with tight input-to-output voltage margins. This part is recommended for designs where the original PCB layout and component placement must remain unchanged.

AP7366EA-20W5-7 provides the same electrical functionality in SOT-25 packaging (SC-74A, SOT-753). This alternative is suitable for applications where PCB real estate permits larger package dimensions or where SOT-25 footprints are already established in the design. The dropout voltage specification matches the original part at 0.4V @ 600mA.

Both substitutes carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. Inventory availability is confirmed for both active alternatives.

Frequently Asked Questions (FAQ)

Q: Can AP7366EA-20SN-7 and AP7366EA-20W5-7 be used interchangeably?

A: Both parts are electrical equivalents with identical output voltage, current rating, and protection features. However, they use different packages (6-UDFN versus SOT-25), requiring different PCB footprints. Direct substitution is possible only if the target PCB layout accommodates the selected package.

Q: What is the primary difference between the two substitute parts?

A: The AP7366EA-20SN-7 maintains the original 6-UDFN package and offers lower dropout voltage (0.285V @ 600mA). The AP7366EA-20W5-7 uses SOT-25 packaging with dropout voltage of 0.4V @ 600mA, matching the original part specification.

Q: Why is the AP7366-20SN-7 marked as obsolete?

A: The original part is obsolete, but Diodes Incorporated continues to offer functionally equivalent active alternatives. Both substitute parts provide the same electrical performance and regulatory compliance.

Q: Are there any compliance or certification differences between the main part and substitutes?

A: No. All three parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings of 1 (Unlimited). Regulatory status is equivalent across all variants.

Q: Which substitute should be selected for new designs?

A: For new designs, either substitute is acceptable based on packaging requirements. The AP7366EA-20SN-7 with improved dropout voltage is preferred if thermal efficiency is a design priority. The AP7366EA-20W5-7 is suitable if SOT-25 packaging aligns with existing design standards.

Q: What is the impact of the lower dropout voltage in AP7366EA-20SN-7?

A: Lower dropout voltage (0.285V versus 0.4V) reduces power dissipation and heat generation, improving overall system efficiency. This is beneficial in applications with limited input-to-output voltage headroom.