AOZ1024DI_5 Equivalent & Substitute Parts

Part Overview

The AOZ1024DI_5 is a buck switching regulator IC from Alpha & Omega Semiconductor Inc., designed for positive adjustable step-down voltage regulation with 4A output current capability. This component operates across an input voltage range of 4.5V to 16V and provides adjustable output voltage from 0.8V to 16V. The device is packaged in an 8-VDFN exposed pad configuration with a 500kHz switching frequency and integrated synchronous rectification.

The AOZ1024DI_5 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

AOZ1024DI_5

Alpha & Omega Semiconductor Inc.In Stock: 1190AOZ1024DI_5 Datasheet

Current PartRFQ

AOZ6604PI

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AOZ1024DI_5 are identified based on functional equivalence within the allowed electrical and mechanical parameters for buck regulator ICs. The primary substitution criteria are:

• Identical manufacturer (Alpha & Omega Semiconductor Inc.)
• Matching functional topology (buck step-down regulator)
• Compatible output configuration (positive adjustable)
• Equivalent or superior output current rating (4A minimum)
• Compatible input voltage range (4.5V to 16V minimum)
• Surface mount packaging with exposed pad design
• Active product status to ensure ongoing availability

The AOZ6604PI meets these substitution criteria as an active product from the same manufacturer with equivalent buck regulator functionality and 4A output current capability, though packaged in an 8-SOIC form factor rather than 8-VDFN.

Parameter Comparison

Engineering Selection Recommendations

The AOZ6604PI is the manufacturer-recommended substitute for the obsolete AOZ1024DI_5. Both devices are manufactured by Alpha & Omega Semiconductor Inc. and provide equivalent buck regulator functionality with 4A output current capability.

The primary design consideration is the package transition from 8-VDFN to 8-SOIC form factor. This change requires PCB layout modification, as the two packages have different footprints and pin configurations. The 8-SOIC package is wider (0.154" / 3.90mm) compared to the compact 8-VDFN design, which may impact board space allocation.

The AOZ6604PI carries active product status, ensuring long-term availability and supply chain continuity. Both parts maintain identical moisture sensitivity levels (MSL 1) and REACH compliance status. The substitute part demonstrates ROHS3 compliance, supporting environmental regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the AOZ6604PI directly replace the AOZ1024DI_5 without circuit modifications?

A: The AOZ6604PI provides equivalent buck regulator functionality and output current rating. However, the package change from 8-VDFN to 8-SOIC requires PCB footprint redesign. Pin-to-pin compatibility must be verified against the specific pinout documentation for each device before implementation.

Q: What is the primary reason for substitution?

A: The AOZ1024DI_5 is classified as obsolete. The AOZ6604PI is an active product from the same manufacturer, ensuring continued availability and supply chain support.

Q: Are there electrical parameter differences between these parts?

A: Both devices provide 4A output current and operate as buck step-down regulators. Detailed electrical specifications (input voltage range, output voltage range, switching frequency, and synchronous rectification capability) must be cross-referenced against the respective datasheets to confirm functional equivalence for specific application requirements.

Q: What packaging considerations apply to this substitution?

A: The AOZ1024DI_5 uses an 8-VDFN exposed pad package, while the AOZ6604PI uses an 8-SOIC exposed pad package. The 8-SOIC package is larger and requires different PCB layout and thermal management considerations. Board space and thermal performance must be re-evaluated during the design transition.

Q: Are compliance and regulatory certifications maintained?

A: Both parts maintain MSL 1 (Unlimited) moisture sensitivity levels and REACH Unaffected status. The AOZ6604PI additionally demonstrates ROHS3 compliance, supporting enhanced environmental regulatory alignment.