10 Pack LM2596 LM2596S Adjustable Voltage Regulator Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V DC-DC Buck Converter Electronic Voltage Stabilizer Power Supply Module
$23.30
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“Dependable power delivery for typical maker projects. Does what it says with acceptable efficiency and protection.”
Our Review
For $23.30 CAD, the 10 Pack LM2596 LM2596S Adjustable Voltage Regulator Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V DC-DC Buck Converter Electronic Voltage Stabilizer Power Supply Module packs respectable specs: Type: Step-Down (Buck), Input Voltage: 2-24V, Output Voltage: 3.3V fixed. 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.
The 10 Pack LM2596 LM2596S Adjustable Voltage Regulator Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V DC-DC Buck Converter Electronic Voltage Stabilizer Power Supply Module earns its place in the parts bin. Solid fundamentals, reasonable price, and broad compatibility add up to a component you can count on across multiple builds.
What We Like
- Low quiescent current preserves battery in sleep mode
- Built-in protection circuits prevent damage
- Screw terminals accept a range of wire gauges
- LED indicators show power and charging status
Watch Out For
- Fixed output voltage on some modules limits flexibility
- Battery capacity degrades after hundreds of charge cycles
- Output ripple may affect sensitive analog circuits
Specifications
| Type | Step-Down (Buck) |
| Input Voltage | 2-24V |
| Output Voltage | 3.3V fixed |
| Max Current | 8A |
| Efficiency | up to 92% |
| Switching Frequency | 500kHz |
The Verdict
“Dependable power delivery for typical maker projects. Does what it says with acceptable efficiency and protection.”
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