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AOZ1031AI_2
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Product Detailed Parameters
- Description：IC REG BUCK ADJ 3A 8SO
- Series：EZBuck™
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：4.5V
- Voltage - Input (Max)：18V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：18V
- Current - Output：3A
- Frequency - Switching：600kHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SO
- Grade：-
- Qualification：-
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Overview
The AOZ1031AI is a synchronous buck switching regulator IC from the EZBuck series by Alpha & Omega Semiconductor. It operates with an input voltage range of 4.5V to 18V and provides a single adjustable positive output from 0.8V to 18V. The device delivers up to 3A of output current at a fixed switching frequency of 600kHz. Packaged in an 8-SOIC surface-mount case, it functions within a temperature range of -40°C to 85°C. This component is classified as obsolete and no longer manufactured.
Feature Summary
- Integrated synchronous rectification for improved efficiency
- Adjustable output voltage capability via external resistors
- Compact 8-SOIC package design for space-constrained applications
Applications
- Point-of-load regulation for embedded systems
- Power supply stages in consumer electronics
- Industrial control system voltage conversion
Procurement Notes
Verify end-of-life status before integration. Confirm availability of qualified second-source alternatives due to discontinuation. Validate pin compatibility and thermal performance against replacement components. Ensure final assembly processes account for obsolete part handling protocols. Review manufacturer documentation for any specific lifecycle restrictions or recommended design changes.
Selection Notes
Consider the AOZ1031AI only if legacy board compatibility is mandatory. Evaluate newer EZBuck family members for improved supply chain stability. Compare thermal dissipation requirements between SOIC and DFN packages. Assess whether higher current variants like the AOZ1034 are needed for future scalability. Verify that the 600kHz frequency aligns with electromagnetic interference constraints.
Part Context
This component belongs to the EZBuck series of synchronous buck regulators designed for efficient power conversion. Alpha & Omega Semiconductor utilizes this architecture to provide compact solutions for portable and industrial devices. The AOZ1031 specifically targets applications requiring moderate current levels with adjustable output voltages.
Replacement Considerations
The AOZ6689CI is listed as a similar alternative by the manufacturer. Verify electrical parameter equivalence and pinout compatibility before substitution.
