AOZ1024DI Equivalent & Substitute Parts

Part Overview

The AOZ1024DI is a buck switching regulator IC from Alpha & Omega Semiconductor Inc., designed for positive adjustable output applications with 4A output current capability. This component operates across a 4.5V to 16V input range and delivers adjustable output voltage from 0.8V to 16V, utilizing a 500kHz switching frequency with integrated synchronous rectification in an 8-VDFN exposed pad package.

The AOZ1024DI is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where this legacy device is no longer procurable.

Substiute Parts

AOZ1024DI

Alpha & Omega Semiconductor Inc.In Stock: 69467AOZ1024DI Datasheet

Current PartRFQ

AOZ6604PI

Alpha & Omega Semiconductor Inc.In Stock: 3079AOZ6604PI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AOZ1024DI is determined by the following critical parameters:

• Functional Equivalence: Buck topology with positive adjustable output configuration
• Electrical Performance: 4A output current capability, 4.5V to 16V input voltage range, 0.8V to 16V output voltage range
• Integration Features: Synchronous rectification capability
• Thermal Operating Range: -40°C to 85°C ambient temperature support
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status
• Package Compatibility: Surface mount technology with exposed pad thermal management

The AOZ6604PI qualifies as a manufacturer-recommended substitute based on functional equivalence in buck regulation topology, output current rating, and compliance certifications. However, package form factor differs between the main part and substitute, requiring PCB layout evaluation.

Parameter Comparison

Engineering Selection Recommendations

The AOZ6604PI is the manufacturer-recommended substitute for the obsolete AOZ1024DI. Both components are manufactured by Alpha & Omega Semiconductor Inc. and maintain ROHS3 compliance with REACH unaffected status.

The AOZ6604PI offers active product status, ensuring continued availability and manufacturing support. The substitute component features improved moisture sensitivity level (MSL 1 versus MSL 3), providing enhanced reliability in storage and handling environments.

Package form factor transition from 8-VDFN to 8-SOIC requires PCB layout modification. The 8-SOIC package presents different footprint dimensions and pin spacing compared to the original 8-VDFN package, necessitating schematic and layout review prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can the AOZ6604PI directly replace the AOZ1024DI without PCB modification?

A: No. The AOZ1024DI uses an 8-VDFN package while the AOZ6604PI uses an 8-SOIC package. Different footprint geometries and pin configurations require PCB layout redesign.

Q: Are the electrical specifications equivalent between these parts?

A: Both components provide 4A output current in buck topology with positive output configuration. Detailed electrical parameter alignment requires review of complete datasheets for switching frequency, output voltage range, and input voltage specifications.

Q: What is the significance of the moisture sensitivity level difference?

A: The AOZ1024DI carries MSL 3 (168-hour floor life), while the AOZ6604PI carries MSL 1 (unlimited floor life). MSL 1 provides superior protection against moisture absorption during storage and handling, reducing risk of solder reflow defects.

Q: Why is the AOZ1024DI classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The AOZ6604PI, with active product status, represents the current manufacturing alternative for equivalent buck regulation functionality.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the AOZ1024DI and AOZ6604PI maintain ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements.