---
product_id: 322544872
title: "DDUAN 5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module"
brand: "generic"
price: "HK$147"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/322544872-dduan-5pack-lm2596-lm2596s-dc-dc-step-down-variable-volt
store_origin: HK
region: Hong Kong
---

# Input: 3-40V Max Current: 3A Output: 1.5-35V DDUAN 5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module

**Brand:** generic
**Price:** HK$147
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Your Projects with Precision!

## Quick Answers

- **What is this?** DDUAN 5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module by generic
- **How much does it cost?** HK$147 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/322544872-dduan-5pack-lm2596-lm2596s-dc-dc-step-down-variable-volt)

## Best For

- generic enthusiasts

## Why This Product

- Trusted generic brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **💡 User-Friendly:** Designed for both hobbyists and professionals, making voltage regulation a breeze.
- • **📏 Compact Design:** Lightweight and portable, measuring just 10.21 x 9.6 x 3.1 cm.
- • **🔌 Versatile Applications:** Perfect for DIY projects, mobile power, and powering communications equipment.
- • **🛡️ Built-in Safety Features:** Thickened circuit boards with short circuit and over-temperature protection ensure reliability.
- • **🔄 Effortless Voltage Adjustment:** Easily fine-tune your output voltage with a mini screwdriver for precision.

## Overview

The DDUAN 5Pack LM2596 DC-DC Step Down Variable Volt Regulator is a versatile and reliable power supply module, capable of adjusting output voltage from 1.5V to 35V with a maximum current of 3A. Ideal for DIY enthusiasts and professionals alike, it features built-in safety mechanisms and a compact design for easy integration into various applications.

## Description

DDUAN 5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module

## Features

- ★Input： DC 3-40 V (input voltage must be 1.5 V higher than the output voltage, no boost).
- ★Output: DC 1.5-35 V voltage is continuously adjustable, maximum output current is 3 A.
- ★Easy work: convenient to accurately adjust the output voltage with a mini screwdriver.
- ★Features: Thickened circuit boards,Short circuit and over-temperature protection.
- ★Application: widely used for DIY mobile power, monitor power supply, power buggies,communications equipment supply,etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Does Not Apply |
| Item Weight | 107 g |
| Package Dimensions | 10.21 x 9.6 x 3.1 cm; 106.88 g |
| Color | Black Blue |
| Power source type | Corded Electric |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |

## Images

![DDUAN 5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module - Image 1](https://m.media-amazon.com/images/I/61lRhJsCgOL.jpg)
![DDUAN 5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module - Image 2](https://m.media-amazon.com/images/I/61JCQdbhEFL.jpg)
![DDUAN 5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module - Image 3](https://m.media-amazon.com/images/I/61a1BTvOXXL.jpg)
![DDUAN 5Pack LM2596 LM2596S DC-DC Step Down Variable Volt Regulator Input 3.0-40V Output 1.5-35V Adjustable Buck Converter Electronic Voltage Stabilizer Power Supply Module - Image 4](https://m.media-amazon.com/images/I/61jOaJCetzL.jpg)

## Questions & Answers

**Q: With 3 amps max. Is that 3 amps at 5v, 12 v, or 40v?**
A: All

**Q: If voltage input varies (5v, 12v, 24v, etc), can I set the output to my desired voltage and expect it to stay at that output voltage if input varies?**
A: Short answer, yes. When it comes to electronics such as these there are limits to what it can do and often times it comes in how energy is transformed. If you are trying to make higher voltages from lower ones, it takes extra current to achieve the same power. Meaning, that if you give it a small input voltage, it will try to draw more current in order to achieve the desired output voltage (so be knowledgeable of the limits of your supply if it matters). However, if your supply can handle the extra current draw, this device will push to create whatever voltage you tune it to.

**Q: if I have a in wire at 14.8 volts can it convert it to 12, 5, or 3 volts?**
A: I would think So

**Q: Can I generate a dual sided supply using the input positive as common?**
A: Probably not, because on the negative side the input and output are common to each other.  I think that you would need to use a negative output 3 pin regulator.

## Frequently Bought Together

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-23*