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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):26V
- Voltage - Output (Min/Fixed):0.6V
- Voltage - Output (Max):26V
- Current - Output:3A
- Frequency - Switching:620kHz
- Synchronous Rectifier:Yes
- 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 AOZ1253PI is a 3A EZBuck synchronous buck regulator manufactured by Alpha & Omega Semiconductor Inc. It integrates high-side and low-side power MOSFETs into an 8-DFN package. The device operates with an input voltage range of 4.5V to 18V and provides an adjustable output voltage from 0.6V to 6V. Key electrical parameters include a switching frequency of 750kHz, continuous output current of 3A, and a maximum quiescent current of 100µA. It features thermal shutdown and overcurrent protection.
Feature Summary
- Integrates high-side and low-side power MOSFETs for compact design
- Fixed 750kHz switching frequency minimizes external component size
- Adjustable output voltage range supports various logic levels
- Includes thermal shutdown and overcurrent protection mechanisms
Applications
- Portable consumer electronics
- Industrial control systems
- Telecommunications infrastructure
- Battery-powered devices
Procurement Notes
Verify the specific suffix 'PI' against the manufacturer's official datasheet to confirm pinout and packaging details. Ensure compatibility with the required input voltage range and load current specifications for the target application. Check RoHS compliance status as per the latest product documentation before finalizing procurement orders.
Selection Notes
Select this component when a fixed-frequency, non-synchronous or simple synchronous buck solution is required for currents up to 3A. Consider the 8-DFN package for space-constrained designs. Compare against other EZBuck variants like AOZ1252 (2A) or AOZ1254 (4A) based on specific current requirements and efficiency targets at light loads.
Part Context
The AOZ1253PI belongs to the EZBuck family of simple buck regulators from Alpha & Omega Semiconductor. This series is designed for cost-sensitive applications requiring minimal external components. It complements other models in the lineup such as the AOZ1252 and AOZ1254, offering a scalable solution for different current demands within the same architectural framework.
Replacement Considerations
Direct substitutes within the EZBuck family include AOZ1252DI for lower current needs or AOZ1254DI for higher current requirements. Cross-reference pinouts and thermal characteristics carefully. Other manufacturers may offer similar 3A buck regulators, but ensure switching frequency and control interface compatibility.
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