Key facts
- Brand
- Xlsemi
- Model
- XL4005
- Category
- DC/DC Converter
- Industry
- Electronics
- Documents
- 4
- Languages
- EN · ZH
- Last added
- 2026-10-12
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XLSEMI XL4005 Demo Board User Manual
This manual describes the XL4005 demo board, a reference design for the XL4005 buck‑converter IC. It includes a schematic, bill of materials, PCB layout, and detailed application notes for building a 5 V, 5 A output supply from a 5 V‑32 V input.
Performance specifications, component selection guidelines, and layout recommendations are provided to help designers achieve up to 93 % conversion efficiency and meet stability requirements across the full input range.
XLSEMI XL4005 specifications
| Input Voltage Range | 5V to 32V |
|---|---|
| Output Voltage Range | 0.8V to 30V |
| Switching Frequency | 300KHz |
| Maximum Output Current | 5A |
| Feedback Voltage | 0.8V |
| Efficiency | 90% |
| Operating Junction Temperature | -40 to 125 °C |
| Package Type | TO-263-5L |
All XLSEMI XL4005 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the switching frequency of the XL4005?
The XL4005 has a fixed switching frequency of 300KHz.
What happens when the output short protection function is triggered?
The operation frequency reduces from 300KHz to 60KHz.
What is the input voltage range for the XL4005 demo board?
The board accepts a wide input range from 5 V to 32 V.
What is the maximum conversion efficiency of the XL4005 demo board?
The demo board can reach up to 93 % conversion efficiency.
What is the switching frequency of the XL4005?
The device operates at a fixed switching frequency of 300KHz.
What is the minimum drop-out voltage?
The XL4005 has a minimum drop-out voltage of 0.6V.