AOZ1031AI_3#A

Description：IC REG BUCK ADJ 3A 8SOIC
Series：EZBuck™
Mfr：Alpha & Omega Semiconductor Inc.
Package：Tape & Reel (TR)

SKU:e35572ec7116 Category: Voltage Regulators - DC DC Switching Regulators Brand: Alpha & Omega Semiconductor Inc.

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Product introduction

Product Detailed Parameters

Description：IC REG BUCK ADJ 3A 8SOIC
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-SOIC
Grade：-
Qualification：-

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AOZ1031AI_3#A

Overview

The AOZ1031AI is a discontinued synchronous buck switching regulator IC from Alpha & Omega Semiconductor Inc., part of the EZBuck series. It features an adjustable output voltage range from 0.8V to 18V with a maximum continuous output current of 3A. The device operates with an input voltage supply between 4.5V and 18V at a fixed switching frequency of 600kHz. Packaged in an 8-SOIC (3.90mm wide) surface-mount housing, it supports positive output configuration and includes internal synchronization capabilities.

Feature Summary

Integrated synchronous rectification for improved efficiency
Adjustable output voltage capability within specified limits
Fixed high-frequency switching operation

Applications

Point-of-load regulation for embedded systems
Battery-powered portable devices
Industrial control power supplies

Procurement Notes

This component is officially obsolete and no longer manufactured by Alpha & Omega Semiconductor Inc. Verification of availability should focus on surplus or secondary market sources rather than direct distribution channels. Engineers must confirm the authenticity of existing stock through authorized distributors or certified brokers before procurement planning.

Selection Notes

Designers requiring active sourcing should evaluate the AOZ6689CI as a documented similar alternative from the same manufacturer. Selection criteria must account for the discontinuation status when determining long-term supply chain stability. Compatibility checks regarding pinout and electrical specifications are essential when transitioning to substitute components.

Part Context

The AOZ1031AI belongs to the EZBuck family of power management integrated circuits designed for compact DC-DC conversion applications. As a synchronous buck regulator, it integrates high-side and low-side drivers to minimize external component count. The 8-SOIC package facilitates surface-mount assembly in space-constrained electronic designs.