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AOZ1284PI
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Product Detailed Parameters
- Description：IC REG BUCK ADJ 4A 8SO
- 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)：3V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：30.6V
- Current - Output：4A
- Frequency - Switching：200kHz ~ 1MHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-SO-EP
- Grade：-
- Qualification：-
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Overview
The AOZ1284PI is a high-efficiency, simple-to-use buck regulator from the EZBuck™ series by Alpha & Omega Semiconductor Inc. It operates within an input voltage range of 3V to 36V and delivers up to 4A of continuous output current. The output voltage is adjustable from 0.8V to 30.6V. This device integrates an N-channel high-side power MOSFET and allows switching frequency adjustment between 200kHz and 1MHz via an external resistor. It features soft-start capability configurable with an external capacitor.
Feature Summary
- Integrates an N-channel high-side power MOSFET for simplified design
- Adjustable switching frequency ranging from 200kHz to 1MHz
- Configurable soft-start time using an external capacitor
Applications
- Point-of-load regulation in industrial equipment
- Power supply stages for embedded systems
- Battery-powered devices requiring step-down conversion
Procurement Notes
Verify the specific suffix 'PI' corresponds to the 8-SOIC package with exposed pad as documented. Confirm RoHS compliance status through official manufacturer documentation or recent PCN notices. Ensure ordering quantities align with available tape-and-reel configurations provided by distributors.
Selection Notes
Select this component when a non-synchronous buck topology is acceptable for cost-sensitive applications requiring up to 4A output. Compare against synchronous alternatives like the AOZ1024D if higher efficiency at light loads is critical. Verify that the required switching frequency falls within the 200kHz to 1MHz programmable range.
Part Context
The AOZ1284PI belongs to the EZBuck™ family of simple buck regulators, which also includes variants such as the AOZ1280 (1.2A), AOZ1281 (1.8A), and AOZ1283 (2.5A). These parts share similar architectural features but differ primarily in maximum output current ratings and packaging options.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official manufacturer resources for cross-reference information before replacing this component.
