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🔌 6-pack valefod lm2596 high efficiency buck converter diy power supply step-down module - dc to dc voltage regulator 3.0-40v to 1.5-35v logo

🔌 6-Pack Valefod LM2596 High Efficiency Buck Converter DIY Power Supply Step-Down Module - DC to DC Voltage Regulator 3.0-40V to 1.5-35V Review

3

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Very good

Revainrating 4 out of 5  
Rating 
4.0
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Description of 🔌 6-Pack Valefod LM2596 High Efficiency Buck Converter DIY Power Supply Step-Down Module - DC to DC Voltage Regulator 3.0-40V to 1.5-35V

【High Precision】The buck converter consists of 36u thickened circuit boards, high-Q inductance with output LED indicator, and superior solid-state capacitors that can effectively filter out high frequency noise. Suitable for various electronic projects. 【Input Voltage】DC 3V to 40V (input voltage must be 1.5V higher than the output voltage, no boost). 【Output Voltage】DC 1.5V to 35V voltage is continuously adjustable, maximum output current is 3A. 【Mini Size】45 * 23 * 14 mm (with potentiometer). 6pcs included. 【Easy to DIY】Connect to power source, using a mini screwdriver to increase or decrease output voltage by adjusting the screw on the blue potentiometer and monitor voltage with multimeter to get the needed voltage, clockwise to step up voltage and counterclockwise to step-down voltage. (Factory default stays a high voltage, you need to contrarotate about 7-15 circles before the voltage starts ramping down, 1 circle means +/- 1V).

Reviews

Global ratings 3
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Type of review

Revainrating 4 out of 5

Good option in Power Converters

I saw several other reviews saying this product is good or not good and decided to take a chance as I really only needed one of them. I bought them to step down the voltage from the 3D printer's power supply to 5 volts to power the Raspberry Pi 4. I soldered everything together, took out the multimeter and started turning the screw to reduce the output voltage. I turned this screw many times and the output voltage stayed the same. I did a google search and people said you probably have to turn…

Pros
  • High precision
Cons
  • There is a negative result

Revainrating 5 out of 5

Finally! Found converters that really match the declared properties!

These are "normal" but well-made buck converters. The specs are correct and unlike many other similar converters, their performance (particularly the input/output capacitors) matches those specs. I tested it to see if it can pump out 3A and it worked fine although I didn't test it for more than 1/2 hour. I've bought ones in the past that were "cheap" and for fun, charged them, and two of them fired just over 2A, even though the LM2595 was rated at 3A. It's weird (who doesn't love the smell of…

Pros
  • Mini size
Cons
  • I have no particular complaints about it, everything is fine

Revainrating 3 out of 5

If you add a capacitor and a resistor everything works fine.

Hello, I have attached 2 pictures explaining what I have researched and tested with your LM2596 boards. Your board can't handle the over voltage of a circuit breaker that supplies 40V DC instantaneously. The input capacitors are listed under the technical designations. With capacitors, you should always think about twice the operating voltage. So if you're working with 50 VDC, you should use a 100 VDC capacitor. I connected an electrolytic capacitor in parallel at the input and a 0.5 ohm…

Pros
  • Easy DIY
Cons
  • Questionable purchase for the elderly