---
product_id: 451704497
title: "4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module"
brand: "atnsinc"
price: "€ 12.17"
currency: EUR
in_stock: true
reviews_count: 8
category: "Atnsinc"
url: https://www.desertcart.be/products/451704497-4pack-lm2596-dc-dc-buck-converter-adjustable-step-down-voltage
store_origin: BE
region: Belgium
---

# 3-40V input range Up to 3A max current Adjustable 1.5-35V output 4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module

**Brand:** atnsinc
**Price:** € 12.17
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your projects with precision and style—because your gear deserves the best.

## Quick Answers

- **What is this?** 4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module by atnsinc
- **How much does it cost?** € 12.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/451704497-4pack-lm2596-dc-dc-buck-converter-adjustable-step-down-voltage)

## Best For

- atnsinc enthusiasts

## Why This Product

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

## Key Features

- • **Compact Powerhouse:** Small PCB mount design packs high efficiency into a minimal footprint—perfect for sleek, modern setups.
- • **Value 4-Pack Bundle:** Get four high-quality LM2596 modules at once—ideal for multitasking pros and DIY innovators.
- • **Plug & Play Simplicity:** Instant power-on indicator and factory-tested modules mean you’re ready to go out of the box—no guesswork.
- • **Precision Voltage Control:** Easily dial in your exact voltage with the smooth potentiometer knob for flawless device compatibility.
- • **Reliable High Current Output:** Supports up to 3A with optional heatsink, ensuring stable power delivery for demanding projects.

## Overview

The 4Pack LM2596 DC-DC Buck Converter offers adjustable step-down voltage regulation from 3-40V input to 1.5-35V output, supporting currents up to 3A with high efficiency. Compact and PCB-mountable, these modules come factory-tested with power indicators for easy setup, making them an essential toolkit upgrade for professionals and hobbyists alike.

## Description

TRANSFORMER

Review: Very good quality - Very good quality
Review: small but terrible.. 😊😊 - it's small but powerful, it mentains it's output, thanks seller..

## Features

- The input voltage: DC 3 -40 V (Input voltage must be 1.5 V higher than the output voltage, no boost.)
- The output voltage: DC 1.5 - 35 V adjustable.
- The output current: It is recommended to use under 2A, maximum 3A(Additional heatsink is required).
- Steps: 1. Plugged into a power supply (3-40v), the power indicator light is lit, the module to work properly. 2. Adjust the blue potentiometer knob (generally booster clockwise, counterclockwise step-down) with a multimeter monitoring the output voltage to the voltage.
- Package includes:4XLM2596 DC-DC buck converter module（Note：The factory have tested these at max voltage so they are very high by default, takes about 15-20 turns CCW before the voltage starts ramping down)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08L5VRBZS |
| Best Sellers Rank | #1,460 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Transformers |
| Brand Name | Atnsinc |
| Current Rating | 3 Amps |
| Customer Reviews | 4.2 4.2 out of 5 stars (132) |
| Item Weight | 0.04 Kilograms |
| Manufacturer | Generic |
| Minimum Frequency | 50 Hz |
| Model | LM2596 -19000 |
| Mounting Type | PCB Mount |
| Part Number | LM2596 -19000 |
| Power Source | DC power supply |
| Specification Met | CE |
| UPC | 701715445123 |
| Unit Count | 4 Count |

## Product Details

- **Brand:** Atnsinc
- **Current rating:** 3 Amps
- **Mounting type:** PCB Mount
- **Power source:** DC power supply
- **Specification met:** CE

## Images

![4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module - Image 1](https://m.media-amazon.com/images/I/71hH9gLJFKL.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good quality
*by O***Y on 22 December 2025*

Very good quality

### ⭐⭐⭐⭐⭐ small but terrible.. 😊😊
*by D***1 on 22 February 2026*

it's small but powerful, it mentains it's output, thanks seller..

### ⭐⭐⭐⭐ Good Item
*by O***R on 23 November 2024*

It is good item and working normal same as described.

## Frequently Bought Together

- ATNSINC 4Pack LM2596 DC-DC Buck Converter, Adjustable Step Down Voltage Regulator 3-40V to 1.5-35V High Efficiency Power Supply Volt Reducer Transformer Module
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---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-05-04*