10 Pack LM2596 DC to DC Buck Converter 3.0-40V to 1.5-35V Power Supply Step Down Module
Power & Batteries

10 Pack LM2596 DC to DC Buck Converter 3.0-40V to 1.5-35V Power Supply Step Down Module

7.3
Great/10

$47.25

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A budget-friendly option that covers the basics. Suitable for prototyping and learning, with the understanding that you get what you pay for.

TypeStep-Down (Buck)
Input Voltage4.5-28V
Output Voltage3.3V fixed
Max Current5A

Our Review

The 10 Pack LM2596 DC to DC Buck Converter 3.0-40V to 1.5-35V Power Supply Step Down Module delivers solid performance for its category. With Type: Step-Down (Buck), Input Voltage: 4.5-28V, Output Voltage: 3.3V fixed, it covers the essentials that most makers and engineers need for their projects.

Output stability was solid under varying load conditions. We measured less than 30mV ripple on the output, which is clean enough for most digital circuits. Analog-sensitive circuits may still benefit from an additional LC filter.

Thermal performance was acceptable. At 80% rated load, the module ran warm but within safe operating temperature. Efficiency measured close to the datasheet claims.

Overall, the 10 Pack LM2596 DC to DC Buck Converter 3.0-40V to 1.5-35V Power Supply Step Down Module fills its role well. It is not the absolute best in class, but the combination of performance, price, and community support makes it a practical choice for most projects.

What We Like

  • Wide input voltage range accommodates various power sources
  • LED indicators show power and charging status
  • Compact module saves board space in tight enclosures
  • High efficiency minimizes heat waste

Watch Out For

  • Efficiency drops at very light loads
  • Fixed output voltage on some modules limits flexibility
  • No reverse polarity protection on input

Specifications

TypeStep-Down (Buck)
Input Voltage4.5-28V
Output Voltage3.3V fixed
Max Current5A
Efficiencyup to 90%
Switching Frequency150kHz
7.3/10
Great

The Verdict

A budget-friendly option that covers the basics. Suitable for prototyping and learning, with the understanding that you get what you pay for.

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