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AOZ2151PQI-03
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Product Detailed Parameters
- Description：IC REG BUCK ADJ 4A 18QFN
- Series：EZBuck™
- Mfr：Alpha & Omega Semiconductor Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：6.5V
- Voltage - Input (Max)：28V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：23.8V
- Current - Output：4A
- Frequency - Switching：1MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：18-PowerWFQFN
- Supplier Device Package：18-QFN (3x3)
- Grade：-
- Qualification：-
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Overview
The AOZ2151PQI-03 is a synchronous buck switching regulator IC from Alpha & Omega Semiconductor. It features an adjustable positive output voltage starting at 0.8V, with a maximum output current capability of 4A. The device operates within an input voltage range of 6.5V to 28V and is housed in a 18-PowerWFQFN package. As part of the EZBuck series, it integrates high-side and low-side power MOSFETs to provide a compact power supply solution.
Feature Summary
- Integrates high-side and low-side power MOSFETs for simplified design
- Provides flexible output voltage adjustment via external components
- Offers a compact footprint suitable for space-constrained applications
Applications
- IoT devices requiring reliable power solutions
- Embedded systems utilizing DC-DC conversion
- Portable electronics needing efficient voltage regulation
Procurement Notes
Verify the specific ordering suffix and marking code (ABP3) against official datasheets to ensure correct variant identification. Confirm package type and thermal characteristics match your PCB layout requirements. Cross-reference manufacturer documentation for any recent revisions or pinout updates before finalizing procurement specifications.
Selection Notes
Select this component when a wide input voltage range up to 28V is required alongside moderate current demands. The integrated FET architecture reduces external component count compared to discrete solutions. Ensure the application benefits from the adjustable output feature and fits within the specified thermal constraints of the PowerWFQFN package.
Part Context
This regulator belongs to the EZBuck family of synchronous step-down converters. The series emphasizes ease of use and efficiency by combining controller logic with power stages. This specific model targets applications needing a balance between performance and board space, leveraging AOS's integration capabilities to streamline power management designs.
Replacement Considerations
Check for direct substitutes within the same EZBuck family that offer similar current ratings and input ranges. Verify pin compatibility and thermal performance if swapping packages. Consult official substitution guides for electrically equivalent parts with updated features or improved availability.
