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AOZ1057AI
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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)：16V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：16V
- Current - Output：3A
- Frequency - Switching：340kHz
- Synchronous Rectifier：No
- 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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Overview
The AOZ1057AI is a synchronous buck regulator from the EZBuck series, manufactured by Alpha & Omega Semiconductor. It operates within an input voltage range of 4.5 V to 18 V and delivers up to 3 A of continuous output current. The device features an adjustable output voltage down to 0.8 V and supports PWM operation at 500 kHz. Key protection mechanisms include cycle-by-cycle current limit, pre-bias start-up, short-circuit protection, and thermal shutdown.
Feature Summary
- Synchronous buck topology with integrated high-side and low-side switches
- Adjustable output voltage capability down to 0.8 V
- Integrated protection against overcurrent, short circuits, and thermal overload
Applications
- Point-of-load DC/DC converters
- Set-top boxes
- DVD and Blu-ray players/recorders
- Cable modems
Procurement Notes
Verify the specific suffix 'AI' against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure the component meets RoHS compliance requirements for your target market. Cross-reference the package type with your PCB footprint design to prevent assembly errors during procurement.
Selection Notes
Select this component when a compact solution is required for converting 4.5 V to 18 V inputs into stable lower voltages. It is suitable for applications demanding up to 3 A load current with high efficiency. Consider its internal switching frequency and protection features when designing power stages for consumer electronics.
Part Context
This part belongs to the EZBuck family of synchronous buck regulators designed for ease of use and high efficiency. It integrates control logic and power MOSFETs into a single package, reducing external component count. The AOZ1057AI specifically targets the 3 A current segment within this product line.
Replacement Considerations
AOZ1051PI: 3 A Synchronous Buck Regulator
FAQ
What is the maximum continuous output current?
The AOZ1057AI provides up to 3 A of continuous output current.
Does the device support pre-bias start-up?
Yes, the AOZ1057AI includes pre-bias start-up functionality.
