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AOZ1021AIL_3
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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)：16V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：16V
- Current - Output：3A
- Frequency - Switching：500kHz
- 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 AOZ1021AIL_3 is a synchronous high-efficiency buck regulator from Alpha & Omega Semiconductor. It operates within an input voltage range of 4.5V to 16V and delivers up to 3A of continuous output current, with the output voltage adjustable down to 0.8V. The device features internal high-side and low-side switches with on-resistances of 100mΩ and 20mΩ respectively. It utilizes a fixed 500kHz PWM switching frequency and includes integrated protection mechanisms such as cycle-by-cycle current limit, thermal shutdown, and short-circuit protection. The component is housed in a compact SO-8 package.
Feature Summary
- Synchronous rectification architecture for enhanced power conversion efficiency
- Integrated protection against over-current, thermal overload, and short circuits
- Adjustable output voltage capability supporting diverse load requirements
Applications
- Point-of-load DC/DC conversion systems
- PCIe graphics card power regulation
- Telecom and networking datacom equipment
- LCD panel power supplies
Procurement Notes
Verify the specific suffix 'L_3' against official Alpha & Omega Semiconductor documentation to confirm pinout compatibility and environmental compliance status. Ensure the selected variant matches the required operating temperature range and package specifications for your design implementation.
Selection Notes
Select this regulator for applications requiring a simple, high-efficiency step-down solution with a wide input voltage range. Consider the 3A current capacity and 500kHz switching frequency when designing external inductor and capacitor values. Evaluate the SO-8 package thermal performance relative to your system's heat dissipation capabilities.
Part Context
This component belongs to the EZBuck family of synchronous buck regulators designed for simplicity and high performance. It integrates control logic and power switches into a single small-footprint package, reducing the bill of materials and board space compared to discrete solutions. The series targets portable and industrial electronics needing reliable power management.
Replacement Considerations
Officially documented similar parts include the AOZ1021AI and AOZ1022DI-01. Verify functional equivalence regarding pin configuration and electrical parameters before substitution.
