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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
Seloky

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

Bottom line: The 10 Pack LM2596 LM2596S Adjustable Voltage Regulator Step Down: 10-pack of modules, ideal for bulk DIY and prototyping; main trade-off: step-down only, no boost function.

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Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

Pros & Cons

Pros

  • ✓ 10-pack of modules, ideal for bulk DIY and prototyping
  • ✓ Wide 3-40V input with adjustable 1.5-35V output
  • ✓ Up to 92% step-down conversion efficiency
  • ✓ Multi-turn potentiometer for precise voltage setting
  • ✓ Thermal shutdown plus current-limit overload protection

Cons

  • ✗ Step-down only, no boost function
  • ✗ Input must stay at least 1.5V above output voltage
  • ✗ No heatsink or enclosure for sustained high loads
  • ✗ Bare board requires soldering and wiring know-how

SpecPicks Verdict

SpecPicks scored 10 Pack LM2596 LM2596S Adjustable Voltage Regulator Step Down… using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Seloky's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Features: Built with SANYO solid capacitors, 36μ thick PCB, high-Q inductors, and an LED output indicator for enhanced performance and reliability
  • Application: Perfect for DIY power bank projects, powering monitors, communication devices, and a wide range of other electronic equipment
  • Wide Input Voltage Range: The LM2596 buck converter supports a broad input voltage range from 3V to 40V, making it ideal for various applications, including DIY electronics, solar power systems, and more.(Input voltage must be at least 1.5V higher than the output voltage; no boost function)
  • High-Efficiency Output: Achieve up to 92% conversion efficiency with this step-down regulator, ensuring stable and efficient voltage regulation for your devices, from 1.25V to 35V
  • Adjustable Voltage Regulator: Easily customize the output voltage with a precision multi-turn potentiometer, providing flexibility for powering a wide range of electronic projects and devices
  • Integrated Thermal Protection: Built-in thermal shutdown and current limit protection safeguard your devices from overheating and overload, extending the lifespan of your components

Full Specifications

BrandSeloky
Color10 Pack
FeaturesBuilt with SANYO solid capacitors, 36μ thick PCB, high-Q inductors, and an LED output indicator for enhanced performance and reliability
Plug TypeMicro USB
Unit Count10 Count
ApplicationPerfect for DIY power bank projects, powering monitors, communication devices, and a wide range of other electronic equipment
Model Numberb0773899-d633-41e0-97fb-accae80afc8a
Power SourceDc Power Supply
Input Voltage3.2 volts_of_direct_current
Item Type Namepower-converters
Output Voltage1.25 volts
Item Dimensions3.94 x 1.97 x 0.67 inches
Mfr Part Numberb0773899-d633-41e0-97fb-accae80afc8a
Number of Items10
Number of Packs10
Number of Outlets10
Item dimensions L x W x H3.94 x 1.97 x 0.67 inches
Integrated Thermal ProtectionBuilt-in thermal shutdown and current limit protection safeguard your devices from overheating and overload, extending the lifespan of your components

Ready to buy?

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 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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