20PCS LM2596 DC to DC Buck Converter 3.0-40V to 1.5-35V DIY Power Supply Step Down Module Adjustable Voltage Regulator Electronic Voltage Stabilizer
$34.29
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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 $34.29 CAD, the 20PCS LM2596 DC to DC Buck Converter 3.0-40V to 1.5-35V DIY Power Supply Step Down Module Adjustable Voltage Regulator Electronic Voltage Stabilizer packs respectable specs: Type: Step-Down (Buck), Input Voltage: 3-40V, Output Voltage: 1.25-35V 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 20PCS LM2596 DC to DC Buck Converter 3.0-40V to 1.5-35V DIY Power Supply Step Down Module Adjustable Voltage Regulator Electronic Voltage Stabilizer delivers what you need without unnecessary complexity. Recommended for hobbyists and engineers working on projects where power & batteries components are essential.
What We Like
- LED indicators show power and charging status
- Compact module saves board space in tight enclosures
- Low quiescent current preserves battery in sleep mode
- Screw terminals accept a range of wire gauges
Watch Out For
- Battery capacity degrades after hundreds of charge cycles
- Thermal shutdown possible in poorly ventilated enclosures
- Fixed output voltage on some modules limits flexibility
Specifications
| Type | Step-Down (Buck) |
| Input Voltage | 3-40V |
| Output Voltage | 1.25-35V adjustable |
| Max Current | 2A |
| Efficiency | up to 92% |
| Switching Frequency | 150kHz |
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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