🔧 LM2596 DC-DC Buck Converter Module

1/3/5/10PCS LM2596 DC to DC Buck Converter 3-40V to 1.5-35V Adjustable Voltage Regulator Step Down Module for Arduino LED DIY

⭐ Highlights

• Wide input 3–40V ➜ adjustable output 1.5–35V

• High efficiency up to ~92% ⚡ for stable DC DC step down power

• Recommended continuous load ≤ 2.5A; add heatsink above ~10W output

• Compact SMD module for easy integration in DIY electronics and prototyping

• Packs available: 1 / 3 / 5 / 10

📦 Specifications

🧠 Important Notes

• Maintain ~1.5–2V difference between input and desired output for stable regulation.

• For long-time operation, keep load ≤ 2.5A; add a heatsink when output power exceeds ~10W.

• Observe polarity: IN+, IN−, OUT+, OUT−. Reversed wiring may damage the module.

• No output short-circuit protection. Avoid shorting the output terminals.

🔧 Voltage Adjustment Guide

1. Power the module with 4–35V DC.

2. Turn the blue trimmer: clockwise increases Vout, counter-clockwise decreases it.

3. Use a multimeter to set the exact voltage under load for best accuracy.

💡 Tip: Some units require many turns on the trimmer. Adjust slowly until the voltage changes.

🧷 Wiring Options

• Solder wires directly to the input and output pads.

• Or solder pin headers to plug into a breadboard or jumper leads.

• Ensure firm mechanical mounting; vertical mounting is possible with suitable fixtures.

✅ Quality and Packaging

• New condition modules with ESD-safe packaging.

• Each batch checked for stable performance in common Arduino and LED applications.

💬 What Buyers Say

• “Fast delivery and as described. Works well for low-power sources.”

• “Adjustable output is precise; some trimmers need several turns to change voltage.”

• “Runs cool at moderate loads; add heatsink for higher power.”

• “12V to 5V step down works fine for microcontroller and LED projects.”

• A few reports note defects or damage from reverse wiring or excessive input voltage; follow the notes above for best results.

🙋 FAQ

Q: Can it step 12V down to 5V?

A: Yes. Set Vout to 5V using the trimmer and confirm with a multimeter. Keep ~1.5–2V dropout.

Q: How much current can I draw?

A: Peak up to around 3A with adequate cooling. For long-term use, we recommend ≤ 2.5A and adding a heatsink above ~10W.

📚 Use Cases

Ideal for Arduino power modules, LED lighting projects, microcontroller boards, sensor nodes, embedded control, and breadboard prototyping where a compact DC DC step down converter with adjustable voltage is needed.

📦 Package Contents

LM2596 Module × 1 or 3 or 5 or 10