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DC 6–24V to 5V USB Output Step-Down / Buck Module Up to 3A
Need a clean 5V USB power source but your supply is higher (like 12V/24V batteries, vehicle power, solar, or adapters)? This compact buck (step-down) converter converts 6–24V DC input to a steady 5V USB output for powering USB devices and microcontroller builds.
Why you’ll want this module
- Wide input: 6V to 24V DC
- Fixed output: 5V via USB-A port
- High current capable: up to 3A (depends on source + cooling)
- Protection features: input reverse-polarity protection + output overvoltage protection
- Perfect for powering Arduino/ESP projects, USB LEDs, small USB fans, and charging small devices
Tip: If you’re powering boards like ESP32 or sensors from a 12V battery, this is an easy way to get stable 5V without wasting heat like a linear regulator.
Common builds (ideas)
- DIY car/vehicle USB power (12V → 5V USB)
- Battery-powered Arduino projects using a 2S/3S pack (7.4V/11.1V → 5V)
- Solar + battery setups needing regulated 5V USB output
- Portable USB power hub inside enclosures
Technical specifications
| Input voltage | DC 6V – 24V |
|---|---|
| Output | 5V regulated, USB-A output |
| Max output current | Up to 3A (real-world depends on your input source + heat dissipation) |
| Efficiency | Up to ~97.5% (claimed) |
| Protection | Input reverse polarity protection, output overvoltage protection |
Wiring notes (important)
- Input side: connect your DC source to the module’s input pads/terminals (+ and −).
- Output side: plug your USB cable/device into the USB-A port for 5V.
- Heat: if you’re pulling high current (near 3A), make sure there’s airflow or space in the enclosure.
- USB charging: this provides 5V power; device charging behavior can vary depending on cable/device requirements.
Quick sanity check: If your input is 12V and you need 5V @ 2A, your source must supply roughly (5V×2A / efficiency) ÷ 12V ≈ ~0.9A or more.
FAQ
Will this ship from Manila?
Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.
Do you ship nationwide?
Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.
Can I get this on a school PO or class order?
Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.
Is this compatible with Arduino, ESP32, or Raspberry Pi?
Most parts work with common maker boards — check the description for specific pinout / voltage notes. If you're unsure, send us a message before ordering.
What's your return policy?
7-day inspection window for DOA units. Email proof of issue and we'll ship a replacement or refund. Used / installed parts are not returnable unless faulty.
Do you offer technical support?
Yes — questions land on our forum or via email, weekday or weekend. We've actually wired up most of what we sell.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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