Alpha & Omega Semiconductor Inc. AOZ2231CQI-23
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.69 | $1.69 |
| 15+ | $0.39 | $5.85 |
| 25+ | $0.38 | $9.50 |
| 50+ | $0.36 | $18.00 |
| 100+ | $0.32 | $32.00 |
| N+ | $0.06 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Alpha & Omega Semiconductor Inc. |
| Product Series | EZBuck™ |
| Packaging | Tape & Reel (TR) | |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Programmable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 6.5V |
| Voltage - Input (Max) | 28V |
| Voltage - Output (Min/Fixed) | 0.7V |
| Voltage - Output (Max) | 1.159V |
| Current - Output | 4A |
| Frequency - Switching | 400kHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 22-PowerVFQFN |
| Supplier Device Package | 22-QFN (4x4) |
| ROHS |
The AOZ2231CQI-23 from Alpha & Omega Semiconductor is a synchronous Buck DC-DC converter designed for high-current applications. It accepts a wide input voltage from 6.5V to 28V and delivers up to 4A of continuous output current at voltages as low as 0.7V. Operating at a fixed 400kHz switching frequency, it offers a good balance between efficiency and component size. This converter is well-suited for automotive, industrial, and networking systems requiring a robust and efficient power solution.
- Wide Input Voltage Range: Handles 6.5V to 28V inputs, making it ideal for automotive and industrial applications with varying supply voltages.
- High Output Current: Delivers up to 4A, suitable for powering high-performance processors and FPGAs.
- Automotive Grade: Designed to meet the rigorous reliability and performance requirements of automotive systems.
- Efficient Power Conversion: Synchronous rectification ensures high efficiency, reducing heat generation and improving system reliability.
Automotive Infotainment and ADAS
The wide 6.5V to 28V input range handles automotive load dumps and cold-crank conditions. The 4A output is suitable for powering infotainment processors, cameras, and sensor modules.
Industrial Power Supplies
Ideal for 12V and 24V industrial bus voltages. The robust 28V input tolerance and 4A output make it suitable for PLCs, motor controls, and factory automation equipment.
Networking and Telecom Equipment
Provides a stable, efficient core voltage for FPGAs, ASICs, and DSPs in networking switches and routers. The 400kHz frequency balances efficiency with external component size.
High-Power LED Lighting
Can be used as a constant-voltage source for high-power LED drivers in automotive or industrial lighting, benefiting from the wide input range and high current capability.
Distributed Power Architectures
As a point-of-load (POL) converter, it steps down an intermediate bus voltage (e.g., 12V or 24V) to a low core voltage, providing high efficiency and tight regulation for sensitive loads.
- Q: What type of converter is the AOZ2231CQI-23?
- A: It is a Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is from 6.5V to 28V.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 0.7V to 1.159V.
- Q: What is the maximum output current?
- A: It can deliver up to 4A of output current.
- Q: What is the switching frequency?
- A: The switching frequency is 400kHz.
- Q: What package is available?
- A: It comes in a 22-PowerVFQFN package.
- Q: What type of converter is the AOZ2231CQI-23?
- A: It is a Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is from 6.5V to 28V.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 0.7V to 1.159V.
- Q: What is the maximum output current?
- A: It can deliver up to 4A of output current.
- Q: What is the switching frequency?
- A: The switching frequency is 400kHz.
- Q: What package is available?
- A: It comes in a 22-PowerVFQFN package.

AOZ2231CQI-23.pdf