Alpha & Omega Semiconductor Inc. AOZ6643DI
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.00 | $1.00 |
| 15+ | $0.23 | $3.45 |
| 25+ | $0.23 | $5.75 |
| 50+ | $0.21 | $10.50 |
| 100+ | $0.19 | $19.00 |
| N+ | $0.04 | 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 | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 18V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 15.3V |
| Current - Output | 3A |
| Frequency - Switching | 500kHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-SMD, Flat Leads Exposed Pad |
| Supplier Device Package | 8-DFN-EP (3x3) |
| ROHS |
The AOZ6643DI from Alpha & Omega Semiconductor is a synchronous Buck DC-DC converter delivering up to 3A. It operates from an input voltage of 4.5V to 18V and provides an adjustable output from 0.8V to 15.3V. The fixed 500kHz switching frequency balances efficiency and component size. Its 8-SMD flat leads exposed pad package is ideal for compact, high-density designs in consumer, industrial, and computing applications.
- Fixed 500kHz Frequency: Simplifies EMI filtering and allows smaller inductor selection.
- Wide Output Range: 0.8V to 15.3V supports various logic and I/O voltages.
- High Efficiency: Synchronous rectification minimizes power loss for thermal management.
- Compact Package: 8-SMD flat leads reduce footprint for space-constrained boards.
Point-of-Load Converters
The 4.5V to 18V input range and 3A output make it ideal for POL conversion in networking and computing equipment.
Set-Top Boxes and Gaming Consoles
High efficiency at 500kHz reduces heat, making it suitable for consumer electronics with limited airflow.
Industrial Control Systems
Its robust design and adjustable output down to 0.8V support logic and I/O rail generation in PLCs.
Storage Drives
Provides clean, stable power for SSD and HDD controllers, ensuring reliable data operation.
FPGA and DSP Power
Adjustable output voltage allows powering core and I/O rails of FPGAs and DSPs from a single converter.
Portable Instruments
Compact 8-SMD package and high efficiency extend battery life in handheld measurement tools.
- Q: What type of converter is the AOZ6643DI?
- A: It is a synchronous Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.5V to 18V.
- Q: What is the maximum output current?
- A: The maximum output current is 3A.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 500kHz.
- Q: What package is available?
- A: It comes in an 8-SMD, Flat Leads Exposed Pad package.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 0.8V to 15.3V.
- Q: What type of converter is the AOZ6643DI?
- A: It is a synchronous Buck (step-down) DC-DC converter.
- Q: What is the input voltage range?
- A: The input voltage range is 4.5V to 18V.
- Q: What is the maximum output current?
- A: The maximum output current is 3A.
- Q: What is the switching frequency?
- A: The switching frequency is fixed at 500kHz.
- Q: What package is available?
- A: It comes in an 8-SMD, Flat Leads Exposed Pad package.
- Q: What is the output voltage range?
- A: The output voltage is adjustable from 0.8V to 15.3V.

AOZ6643DI.pdf