AC-DC 3.3V/5V/12V Precision Buck Converter AC 220v to 5v DC step down Transformer power supply module 1A 12W
This precision AC-DC buck converter efficiently steps down 220V AC mains power to a stable 3.3V, 5V, or 12V DC output with a reliable 1A current and 12W power rating. It provides a compact, integrated...
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Questions about this product
- Can I output 3.3V, 5V, and 12V all at the same time?
- No, you must select a single output voltage for your project. The module delivers up to 12 watts of power with a 1-amp current limit. Always calculate your total load to ensure it stays within these limits.
- How do I wire this power supply into my project?
- You solder incoming power directly to the AC Live, AC Neutral, and Earth pins on the board. This compact module mounts directly onto your custom PCB. Make sure you fully disconnect the mains supply before installing or handling the unit.
- What safety features protect my connected microcontroller from mains voltage?
- This module provides built-in over-current and short-circuit protections to shield your downstream components. It also features a 3000 VAC isolation rating to keep high-voltage AC away from your low-voltage circuits.
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