AP65454SP-13 Equivalent & Substitute Parts

Part Overview

The AP65454SP-13 is a buck switching regulator IC manufactured by Diodes Incorporated, designed for positive adjustable step-down voltage regulation with 4A output current capability. This component operates across a 4.5V to 18V input range and delivers adjustable output voltage from 0.765V to 6V at 650kHz switching frequency in an 8-SOIC surface mount package with exposed pad.

The AP65454SP-13 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications utilizing this regulator topology.

Substiute Parts

AP65454SP-13

Diodes IncorporatedIn Stock: 1237AP65454SP-13 Datasheet

Current PartRFQ

RT7233GSP

Richtek USA Inc.In Stock: 10293RT7233GSP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AP65454SP-13 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Compatibility Criteria:

• Buck topology with positive adjustable output configuration
• Input voltage range: 4.5V to 18V minimum
• Output voltage adjustability: minimum 0.765V lower limit
• Output current rating: 4A or greater
• Switching frequency: 650kHz
• Synchronous rectifier implementation
• Operating temperature range: -40°C to 85°C or wider

Mechanical Compatibility Criteria:

• Package type: 8-SOIC with exposed pad
• Surface mount configuration
• Pin-compatible footprint (0.154" width, 3.90mm)

Compliance Criteria:

• RoHS3 compliance
• REACH unaffected status

The RT7233GSP meets all substitution criteria and is classified as an active product with current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The RT7233GSP qualifies as a direct substitute for the AP65454SP-13 based on electrical and mechanical parameter alignment. All critical specifications match or exceed the original part requirements:

• Identical input and output voltage ranges ensure circuit compatibility
• Matching 4A output current and 650kHz switching frequency preserve system performance characteristics
• Pin-compatible 8-SOIC package with exposed pad enables direct PCB footprint replacement
• Both parts maintain -40°C to 85°C operating temperature specification
• Both parts are ROHS3 compliant and REACH unaffected

The RT7233GSP holds active product status with current manufacturing availability (10,200 pcs in stock), providing supply chain continuity for the obsolete AP65454SP-13. The substitute offers extended maximum output voltage capability (8V vs. 6V), which does not restrict applications designed for the original part's 6V maximum output.

Frequently Asked Questions (FAQ)

Q: Can the RT7233GSP be used as a direct replacement for the AP65454SP-13 without PCB modifications?

A: Yes. The RT7233GSP is pin-compatible and footprint-compatible with the AP65454SP-13. Both parts use the 8-SOIC package with identical 0.154" width and 3.90mm dimensions. No PCB layout changes are required for mechanical or electrical integration.

Q: Are there differences in electrical performance between these parts?

A: The electrical specifications are equivalent across all critical parameters: input voltage range (4.5V–18V), minimum output voltage (0.765V), output current (4A), switching frequency (650kHz), and operating temperature range (-40°C to 85°C). The RT7233GSP supports a higher maximum output voltage (8V vs. 6V), which does not impact designs utilizing the original 6V maximum specification.

Q: What is the significance of the product status difference?

A: The AP65454SP-13 is obsolete and no longer manufactured. The RT7233GSP is an active product with current production and inventory availability. This substitution ensures continued access to functionally equivalent components for new production runs and field replacements.

Q: Are both parts compliant with the same regulatory standards?

A: Yes. Both the AP65454SP-13 and RT7233GSP are ROHS3 compliant and REACH unaffected, meeting equivalent environmental and regulatory requirements.

Q: Does the RT7233GSP belong to the same product series as the AP65454SP-13?

A: No. The AP65454SP-13 has no designated series designation, while the RT7233GSP belongs to the Richtek ACOT™ series. This series designation reflects the manufacturer's product line classification and does not affect functional compatibility or substitution suitability.

Q: What packaging format is available for the RT7233GSP?

A: The RT7233GSP is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. The AP65454SP-13 packaging format was not specified in the original documentation.