AOZ1015AI Equivalent & Substitute Parts

Part Overview

The AOZ1015AI is a buck switching regulator IC from Alpha & Omega Semiconductor Inc., designed for positive adjustable output applications. This device operates as a step-down converter with a single adjustable output, delivering 1.5A maximum output current across an input voltage range of 4.5V to 16V. The part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

AOZ1015AI

Alpha & Omega Semiconductor Inc.In Stock: 14541AOZ1015AI Datasheet

Current PartRFQ

AOZ6689CI

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AOZ1015AI is determined by the following critical parameters:

• Topology & Function: Both parts must operate as buck (step-down) switching regulators with positive adjustable output configuration
• Output Voltage Compatibility: Minimum output voltage must be 0.8V or lower; maximum output voltage must support the application requirement
• Output Current Capability: Substitute must meet or exceed the 1.5A output current requirement
• Input Voltage Range: Substitute must accept the 4.5V to 16V input range
• Manufacturer Continuity: Parts from the same manufacturer (Alpha & Omega Semiconductor Inc.) ensure design consistency and support continuity
• Compliance & Certification: RoHS3 compliance and REACH unaffected status must be maintained

The AOZ6689CI qualifies as a manufacturer-recommended substitute based on these criteria.

Parameter Comparison

Engineering Selection Recommendations

The AOZ6689CI is the manufacturer-recommended substitute for the obsolete AOZ1015AI. Selection of this substitute is supported by the following factors:

Product Status & Support: The AOZ1015AI is obsolete, whereas the AOZ6689CI is actively manufactured. Transitioning to the AOZ6689CI ensures long-term availability and manufacturer technical support.

Compliance & Certification: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory continuity in production environments.

Electrical Performance: The AOZ6689CI meets all critical electrical requirements of the AOZ1015AI. The substitute provides higher output current capability (3A vs. 1.5A), extended input voltage range (up to 18V vs. 16V), and wider operating temperature range (-40°C to 125°C vs. -40°C to 85°C). The integrated synchronous rectifier in the AOZ6689CI improves efficiency compared to the non-synchronous AOZ1015AI.

Application Constraints: The AOZ6689CI maximum output voltage is limited to 6V, whereas the AOZ1015AI supports up to 16V. Applications requiring output voltages above 6V cannot use this substitute.

Package Consideration: The AOZ6689CI uses SOT-23-6 packaging versus the 8-SOIC package of the AOZ1015AI. PCB layout redesign is required for this substitution.

Frequently Asked Questions (FAQ)

Q: Can the AOZ6689CI directly replace the AOZ1015AI without PCB modifications?

A: No. The AOZ1015AI uses 8-SOIC packaging while the AOZ6689CI uses SOT-23-6 packaging. PCB layout redesign is necessary to accommodate the different package footprint and pin configuration.

Q: What is the maximum output voltage for the AOZ6689CI?

A: The AOZ6689CI supports output voltages up to 6V. If your application requires output voltages above 6V, this substitute is not suitable.

Q: Does the AOZ6689CI provide better performance than the AOZ1015AI?

A: The AOZ6689CI offers several enhancements: higher output current capability (3A vs. 1.5A), integrated synchronous rectifier for improved efficiency, extended input voltage range (4.5V to 18V), and wider operating temperature range (-40°C to 125°C). Switching frequency is also higher at 750kHz versus 500kHz.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the AOZ1015AI and AOZ6689CI are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance for production use.

Q: Why is the AOZ1015AI obsolete?

A: The AOZ1015AI has been discontinued by the manufacturer. The AOZ6689CI represents the current-generation alternative from Alpha & Omega Semiconductor Inc. for similar buck regulator applications.

Q: What is the operating temperature range difference?

A: The AOZ1015AI operates from -40°C to 85°C, while the AOZ6689CI operates from -40°C to 125°C. The AOZ6689CI supports a wider temperature range, suitable for extended-temperature applications.

Q: Can I use the AOZ6689CI in applications requiring 1.5A output current?

A: Yes. The AOZ6689CI is rated for 3A output current, which exceeds the 1.5A requirement of the original AOZ1015AI application.