AOZ3024PI Equivalent & Substitute Parts

Part Overview

The AOZ3024PI is a buck switching regulator IC from Alpha & Omega Semiconductor Inc., part of the EZBuck™ series. It delivers positive adjustable output voltage with 3A current capacity in an 8-SOIC package with exposed pad. The device is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

AOZ3024PI

Alpha & Omega Semiconductor Inc.In Stock: 4075AOZ3024PI Datasheet

Current PartRFQ

AOZ6689CI

Alpha & Omega Semiconductor Inc.In Stock: 1196AOZ6689CI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The AOZ6689CI qualifies as a manufacturer-recommended substitute for the AOZ3024PI based on the following critical parameters:

Both devices share identical input voltage range (4.5V to 18V), output configuration (positive adjustable), topology (buck), and current rating (3A). Both incorporate synchronous rectification and maintain the same minimum output voltage floor (0.8V). Both are manufactured by Alpha & Omega Semiconductor Inc. within the EZBuck™ series and comply with ROHS3 and REACH requirements.

The primary differences are packaging format (8-SOIC versus SOT-23-6), switching frequency (500kHz versus 750kHz), maximum output voltage (15.3V versus 6V), operating temperature range (-40°C to 85°C versus -40°C to 125°C), and product status (obsolete versus active).

Parameter Comparison

Engineering Selection Recommendations

The AOZ6689CI is the manufacturer-recommended substitute for the obsolete AOZ3024PI. Both devices maintain identical electrical specifications for input voltage range, output current capacity, and minimum output voltage. Both comply with ROHS3 and REACH regulatory requirements with MSL 1 rating.

Selection between these parts depends on application-specific constraints. The AOZ3024PI supports maximum output voltage of 15.3V, while the AOZ6689CI is limited to 6V maximum output. The AOZ6689CI operates at higher switching frequency (750kHz versus 500kHz) and supports extended operating temperature range (-40°C to 125°C versus -40°C to 85°C). Package format differs: AOZ3024PI uses 8-SOIC with exposed pad, while AOZ6689CI uses SOT-23-6 thin package.

For designs requiring output voltages exceeding 6V, the AOZ3024PI specifications cannot be met by the AOZ6689CI. For new designs or production transitions, the AOZ6689CI is the active product with full manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can the AOZ6689CI directly replace the AOZ3024PI in existing designs?

A: Electrical substitution is possible only if the design output voltage requirement does not exceed 6V. The AOZ3024PI supports up to 15.3V output, while the AOZ6689CI is limited to 6V. Package footprints differ (8-SOIC versus SOT-23-6), requiring PCB layout modification. Switching frequency differs (500kHz versus 750kHz), which may affect filter component selection and EMI characteristics.

Q: What are the key differences in operating temperature range?

A: The AOZ3024PI operates from -40°C to 85°C, while the AOZ6689CI extends to -40°C to 125°C. Applications requiring operation above 85°C ambient temperature require the AOZ6689CI. Both devices maintain identical input voltage range and output current specifications across their respective temperature ranges.

Q: Are there compliance or regulatory differences between these parts?

A: Both devices are ROHS3 compliant and REACH unaffected. Both carry MSL 1 (unlimited moisture sensitivity level) rating. No regulatory or compliance barriers exist to substitution, provided electrical specifications align with application requirements.

Q: How does the switching frequency difference affect circuit design?

A: The AOZ6689CI operates at 750kHz compared to the AOZ3024PI at 500kHz. Higher switching frequency typically allows smaller output filter inductors and capacitors but may increase switching losses and EMI. Filter component values and PCB layout must be re-evaluated for the substitute part.

Q: What packaging considerations apply to substitution?

A: The AOZ3024PI uses 8-SOIC (0.154", 3.90mm width) with exposed pad. The AOZ6689CI uses SOT-23-6 thin package. These are incompatible footprints requiring complete PCB redesign. The SOT-23-6 package is significantly smaller, which may reduce board space but requires careful thermal management for 3A output current applications.