Five Pack Mini DC Buck Converter Set 4.5 to 20V Input to 5V Output With Adjustable 1 to 16V Or Fixed 5V 9V 12V 3A 10W Step Down Regulator Board For Makers And Tinkerers Projects

Compact 5-Pack Mini DC Buck Converters for Makers
✔️ 4.5-20V input; adjustable 1-16V or fixed 5/9/12V; 3A

Five-piece set of miniature DC buck regulators ideal for hobby electronics, robotics, and maker projects. These tiny boards fit tight spaces, breadboards, and compact PCBs while delivering reliable step-down from higher voltages to 5V, 9V, 12V, or user-adjusted outputs.

✅ Input voltage: DC 4.5-20V
✅ Output options: adjustable 1-16V or fixed 1.8/2.5/3.3/5/9/12V
✅ Max current: 3A peak, about 2A long-term
✅ Power: 10W; efficiency up to 97% (typical >90% when 12V→5V 2A)
✅ Switching frequency: 800kHz; ripple ~20mV
✅ Protection: short-circuit protection; enable control; 2.54 mm (0.1 in) spacing

💡 What is a compact DC buck converter used for in DIY electronics projects?

It's handy for powering hobby boards from higher voltages while keeping heat and space tight.

• Voltage regulation for microcontrollers and sensors with high efficiency
• Compact power source for portable projects and tight builds
• Fast transient response helps maintain stable voltages under load