The XLSEMI XL4005 Demo Board User Manual provides circuit diagram, component list, performance data, layout and application guidelines for the 5 V/5 A buck…
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.
| Input voltage range | 5 V ~ 32 V |
|---|---|
| Output voltage adjustment range | 0.8 V ~ 30 V |
| Switching frequency | 300 kHz |
| Maximum conversion efficiency | 93 % |
| Maximum output current | 5 A |
| Integrated protection | Over‑current, over‑temperature, short‑circuit |
The board accepts a wide input range from 5 V to 32 V.
The demo board can reach up to 93 % conversion efficiency.
A Schottky barrier diode such as MBRD1045G is recommended.
Place a low‑ESR input capacitor as close as possible to the XL4005 pins.