AP1510SL-13 Equivalent & Substitute Parts

Part Overview

The AP1510SL-13 is a buck switching regulator IC manufactured by Diodes Incorporated, designed for adjustable output voltage regulation with 3A output current capability in an 8-SOIC surface mount package. This part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The AP1510SL-13 provides step-down voltage conversion with positive adjustable output configuration, suitable for power management applications requiring compact form factors and moderate current delivery.

Substiute Parts

AP1510SL-13

Diodes IncorporatedIn Stock: 25856AP1510SL-13 Datasheet

Current PartRFQ

AP1510SG-13

Diodes IncorporatedIn Stock: 20912AP1510SG-13 Datasheet

DirectRFQ

TPS54331DR

Texas InstrumentsIn Stock: 105436TPS54331DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP1510SL-13 are qualified based on the following criteria:

Package Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct PCB footprint compatibility without layout modifications.

Functional Equivalence: Substitute parts must operate as buck switching regulators with positive adjustable output configuration, matching the step-down topology and single output design of the original part.

Electrical Performance: Substitute parts must support 3A output current and adjustable output voltage regulation with minimum output voltage of 0.8V, maintaining functional parity with the AP1510SL-13.

Regulatory Compliance: All substitute parts must maintain ROHS3 compliance and REACH unaffected status to satisfy the same regulatory requirements as the original part.

Parameter Comparison

Engineering Selection Recommendations

AP1510SG-13 (Diodes Incorporated): This part represents the direct successor within the Diodes Incorporated product line, sharing the same base product number (AP1510) and manufacturer. The AP1510SG-13 is currently in active production status, ensuring long-term availability and supply chain stability. The primary distinction is improved moisture sensitivity level (MSL 1 versus MSL 3), providing enhanced reliability for storage and handling. This part is the preferred direct replacement for the obsolete AP1510SL-13 when maintaining single-source supplier strategy.

TPS54331DR (Texas Instruments): This part provides functional equivalence with extended operating temperature range (-40°C to 150°C junction temperature versus -25°C to 85°C ambient for the original part) and higher input voltage maximum rating (28V versus 23V). The TPS54331DR is manufactured by Texas Instruments and maintains active product status with significantly higher inventory availability. Selection of this part introduces a secondary supplier option and is suitable for applications requiring extended temperature performance or higher input voltage tolerance.

Frequently Asked Questions (FAQ)

Q: Can AP1510SG-13 be used as a direct replacement for AP1510SL-13?

A: Yes. Both parts share identical package geometry (8-SOIC), mounting type (surface mount), functional topology (buck regulator), output current rating (3A), and regulatory compliance (ROHS3, REACH unaffected). The AP1510SG-13 is the active production equivalent with improved moisture sensitivity characteristics.

Q: What are the key differences between AP1510SG-13 and TPS54331DR?

A: Both parts maintain identical package, mounting type, and 3A output current. Differences include manufacturer (Diodes Incorporated versus Texas Instruments), switching frequency (300kHz versus 570kHz), input voltage range (3.6V-23V versus 4.6V-28V), output voltage range (0.8V-23V versus 0.8V-25V), and operating temperature range. The TPS54331DR offers extended temperature performance and higher input voltage capability.

Q: Are there any PCB layout considerations when substituting these parts?

A: All three parts use identical 8-SOIC package dimensions and pin configuration, eliminating the need for PCB layout modifications. Schematic connections remain unchanged. Component placement and routing can remain identical between the original AP1510SL-13 and either substitute part.

Q: Which substitute part should be selected for new designs?

A: Selection depends on application requirements. For designs requiring single-source supplier continuity with Diodes Incorporated, use AP1510SG-13. For applications requiring extended operating temperature range or higher input voltage tolerance, use TPS54331DR. Both parts satisfy the functional and regulatory requirements of the obsolete AP1510SL-13.

Q: Are moisture sensitivity level differences significant for component handling?

A: The AP1510SL-13 and AP1510SG-13 differ in MSL rating (3 versus 1). MSL 3 requires moisture bake-out procedures after 168 hours of exposure to ambient conditions, while MSL 1 has unlimited shelf life without moisture sensitivity constraints. The AP1510SG-13 provides simplified handling and storage procedures.