Alpha & Omega Semiconductor Inc. AOZ2231CQI-11
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.17 | $1.17 |
| 15+ | $1.13 | $16.95 |
| 25+ | $1.11 | $27.75 |
| 50+ | $1.05 | $52.50 |
| 100+ | $0.92 | $92.00 |
| N+ | $0.18 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Alpha & Omega Semiconductor Inc. |
| Product Series | EZBuck™ |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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) | 0.9V |
| Voltage - Output (Max) | 1.191V |
| 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 Alpha & Omega Semiconductor AOZ2231CQI-11 is a high-efficiency synchronous step-down DC-DC converter designed to deliver up to 4A of output current from an input voltage range of 6.5V to 28V. It provides a fixed output voltage in the range of 0.9V to 1.191V, making it suitable for powering low-voltage digital cores. The device operates at a fixed 400kHz switching frequency, allowing for a good balance between efficiency and component size. Housed in a compact 22-pin PowerVFQFN package, it offers excellent thermal performance and a small footprint. This converter is ideal for industrial, networking, and automotive applications where a wide input range and high output current are required.
- Wide Input Range: 6.5V to 28V input tolerance covers 12V and 24V systems, including automotive transients.
- High Output Current: 4A continuous output supports power-hungry processors and FPGAs.
- Fixed Low Output Voltage: Provides a stable 0.9V-1.191V rail for modern digital ICs.
- 400kHz Switching Frequency: Balances efficiency and external component size, reducing solution cost.
- Compact PowerVFQFN Package: Saves board space while providing good thermal dissipation.
12V/24V Industrial Power Rails
With an input range of 6.5V to 28V, the AOZ2231CQI-11 is ideal for converting 12V or 24V industrial supply rails down to low-voltage cores (around 1V) for FPGAs, ASICs, and DSPs.
Networking and Telecom Equipment
In routers, switches, and base stations, this converter can efficiently power high-current digital loads from a 12V intermediate bus, providing up to 4A with minimal heat generation.
Automotive Infotainment and ADAS
For automotive systems operating from 12V batteries (with transients up to 28V), the AOZ2231CQI-11 provides a stable low-voltage supply for processors in infotainment and advanced driver-assistance systems.
Server and Storage Systems
In servers, the 12V rail is common. This buck converter can generate a 1.0V or 1.1V core voltage for memory controllers and logic, with high efficiency to reduce cooling requirements.
Point-of-Load (POL) Converters
As a POL converter, it can be placed close to the load, minimizing IR drops and improving transient response for high-current digital ICs.
LED Displays and Signage
For large LED displays powered by 24V, this converter can provide a regulated low-voltage supply for control logic and drivers.
- Q: What type of converter is the AOZ2231CQI-11?
- A: It is a synchronous step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is from 6.5V to 28V, suitable for 12V and 24V systems.
- Q: What is the output voltage range?
- A: The output voltage is fixed at a range between 0.9V and 1.191V, with a typical value likely around 1.0V or 1.1V (exact setpoint not specified).
- Q: What is the maximum output current?
- A: It can deliver up to 4A of continuous output current.
- Q: What is the switching frequency?
- A: The device operates at a fixed 400kHz switching frequency.
- Q: What package is available?
- A: It is available in a 22-pin PowerVFQFN package, which offers good thermal performance.
AOZ2231CQI-11.pdf
- Q: What type of converter is the AOZ2231CQI-11?
- A: It is a synchronous step-down (Buck) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is from 6.5V to 28V, suitable for 12V and 24V systems.
- Q: What is the output voltage range?
- A: The output voltage is fixed at a range between 0.9V and 1.191V, with a typical value likely around 1.0V or 1.1V (exact setpoint not specified).
- Q: What is the maximum output current?
- A: It can deliver up to 4A of continuous output current.
- Q: What is the switching frequency?
- A: The device operates at a fixed 400kHz switching frequency.
- Q: What package is available?
- A: It is available in a 22-pin PowerVFQFN package, which offers good thermal performance.
