AOZ1242DI

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

SKU:91e7891acadb 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 8DFN
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)：32V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：32V
Current - Output：3A
Frequency - Switching：370kHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：8-WDFN Exposed Pad
Supplier Device Package：8-DFN-EP (5x4)
Grade：-
Qualification：-

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AOZ1242DI

Overview

The AOZ1242DI is a monolithic synchronous buck regulator from the EZBuck series by Alpha & Omega Semiconductor. It integrates high-side and low-side power MOSFETs with a fixed-frequency current-mode controller, delivering up to 3A output current. The device operates with an input voltage range of 4.5V to 27V and supports adjustable output voltages down to 0.8V. Key electrical parameters include a switching frequency of 370kHz and a quiescent current of 60µA. It features thermal shutdown, overcurrent protection, and UVLO, housed in a compact 8-DFN package.

Feature Summary

Integrates synchronous rectification for high efficiency
Fixed-frequency current-mode control architecture
Comprehensive protection including thermal shutdown and overcurrent limiting

Applications

Point-of-load regulation for industrial systems
Power supplies for telecom infrastructure
Adapters and chargers for consumer electronics

Procurement Notes

Verify the specific suffix 'DI' corresponds to the 8-DFN package variant during sourcing. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure compatibility with the required output voltage setting via external resistor divider. Check for any recent Product Change Notifications regarding manufacturing location or materials.

Selection Notes

Select this component for applications requiring a simple, cost-effective solution with minimal external components. It is suitable where space constraints favor surface-mount packaging. Consider the 370kHz switching frequency when designing input and output filters. Verify that the load current requirements do not exceed the 3A continuous limit under expected operating temperatures.

Part Context

This part belongs to the EZBuck family of simple buck regulators designed for ease of implementation. It replaces discrete solutions by integrating power switches and control logic. The AOZ1242DI specifically targets markets needing reliable DC-DC conversion with reduced board area and simplified design cycles compared to non-synchronous alternatives.