
LM2596 DC-DC Buck Converter Voltage Regulator Adjustable 4.0-40V to 1.25-37V 2A Power Supply Module with LED Voltmeter Display
$15.31
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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.”
Our Review
For $15.31 CAD, the LM2596 DC-DC Buck Converter Voltage Regulator Adjustable 4.0-40V to 1.25-37V 2A Power Supply Module with LED Voltmeter Display packs respectable specs: Type: Step-Down (Buck), Input Voltage: 8-40V, Output Voltage: 1.25-26V adjustable. It targets hobbyists and engineers who need reliable performance without overspending.
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.
For the price point, the LM2596 DC-DC Buck Converter Voltage Regulator Adjustable 4.0-40V to 1.25-37V 2A Power Supply Module with LED Voltmeter Display delivers what you need without unnecessary complexity. Recommended for hobbyists and engineers working on projects where power & batteries components are essential.
What We Like
- Built-in protection circuits prevent damage
- Wide input voltage range accommodates various power sources
- Low quiescent current preserves battery in sleep mode
- LED indicators show power and charging status
Watch Out For
- No reverse polarity protection on input
- Efficiency drops at very light loads
- Thermal shutdown possible in poorly ventilated enclosures
Specifications
| Type | Step-Down (Buck) |
| Input Voltage | 8-40V |
| Output Voltage | 1.25-26V adjustable |
| Max Current | 2A |
| Efficiency | up to 96% |
| Switching Frequency | 500kHz |
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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