---
product_id: 58752409
title: "D-Planet [4-Pack] 5A DC-DC Adjustable Buck Converter 4~38v to 1.25-36v Step Down Power Supply High Efficiency Voltage Regulator Module"
brand: "dkplnt"
price: "158 zł"
currency: PLN
in_stock: true
reviews_count: 4
category: "Dkplnt"
url: https://www.desertcart.pl/products/58752409-d-planet-4-pack-5a-dc-dc-adjustable-buck-converter
store_origin: PL
region: Poland
---

# 5A max output current 96% high efficiency Adjustable 1.25-36V output D-Planet [4-Pack] 5A DC-DC Adjustable Buck Converter 4~38v to 1.25-36v Step Down Power Supply High Efficiency Voltage Regulator Module

**Brand:** dkplnt
**Price:** 158 zł
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up smartly — efficiency and safety in one sleek module!

## Quick Answers

- **What is this?** D-Planet [4-Pack] 5A DC-DC Adjustable Buck Converter 4~38v to 1.25-36v Step Down Power Supply High Efficiency Voltage Regulator Module by dkplnt
- **How much does it cost?** 158 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/58752409-d-planet-4-pack-5a-dc-dc-adjustable-buck-converter)

## Best For

- dkplnt enthusiasts

## Why This Product

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

## Key Features

- • **Robust 5A Current Capacity:** Supports up to 5 amps, perfect for demanding DIY and professional applications.
- • **Compact & Ready to Integrate:** Small 5.4x2.3x1.8cm footprint fits seamlessly into any project setup.
- • **Built-In Safety You Can Trust:** Includes over-temperature, short-circuit, and reverse voltage protection for worry-free operation.
- • **Ultra-Efficient Energy Conversion:** Maximize battery life and reduce heat with up to 96% efficiency.
- • **Power Your Projects with Precision:** Adjust output voltage from 1.25V to 36V for tailored power delivery.

## Overview

The D-Planet 4-Pack 5A DC-DC Adjustable Buck Converters deliver versatile step-down voltage regulation from 4-38V input to a finely tunable 1.25-36V output. With a robust 5A current capacity and up to 96% conversion efficiency, these compact modules feature advanced protections including over-temperature, short-circuit, and reverse voltage safeguards. Ideal for millennial makers and professionals seeking reliable, efficient power solutions for electronics, battery charging, and custom projects.

## Description

Product Features This product is a 180 KHz fixed frequency PWM buck (step-down) DC/DC module,capable of driving a 5A load with high efficiency, low ripple and excellent line and load regulation. Parameters: Input Voltage: DC 4-38V, error ±0.1V Output Voltage: DC 1.25V to 36V Output Current: 5A(MAX) It is recommended to use under 4.5A (NOTE: When using high power, add a heat sink to the power supply chip) Size: 5.4x2.3x1.8CM Weight: 16g Fuction: 1.Built in over-temperature protection function 2.Built in current limit function 3.Built in output short-circuit protection function How to use 1.Access the power supply (4-38V), the power indicator light, the module is working properly. 2.Adjust the blue potentiometer knob (usually clockwise rotation boost, counterclockwise rotationStep-down) and monitor the output voltage with a multimeter to reach the required voltage. 3.A customer reflects the module output voltage can not be adjusted, always equal to the input voltage. When you encounter this problem, please first counterclockwise rotation potentiometer 10 laps above, and then use the module can be normal adjustment of the voltage.

Review: Great value, easy to setup, voltage drifts a little bit as load increases. - I'm building an Arduino-based lithium battery charging rig, mostly for fun and learning, but also so that I can recycle old laptop batteries into solar power storage. I'm using these buck converters to step 12v supply down to 5v for powering TP4056 charge controller boards that charge 18650 batteries. Each of the 'battery modules' in the picture handles 4 batteries, and could draw up to 20 watts. So putting one of these buck converters on each module lets me distribute power at 12v instead of 5v, significantly reducing current flow, wire size, and voltage drop. The output voltage of the buck converter stays fairly steady, but it does drop as load increases. Adjusting the output voltage is straightforward, but make sure you turn the pot down before connecting anything. The units ship with the pot adjusted to full output voltage! With 12v input, and adjusted to 5v output with no load, here are the drops I saw as load was applied: 0.0a - 5.0v 0.5a - 4.93 1a - 4.86v 2a - 4.70v 3a - 4.55v Abruptly disconnecting the 3a load, voltage returned to the initial 5v setting. Using the 'max' function of my multimeter, I did not see any spike or overcorrection. These work really well for making a big step down ahead of anything that uses a linear regulator for final voltage regulation. The closer you can tune these to the final voltage you need for the anticipated load, the less energy the linear regulator will need to dissipate. From my measurements, these appear to use a common ground. So the negative output isn't really necessary as it is the same as the negative input. These are great little devices, with lots of uses. Definitely recommended.
Review: They work! - I just received these today. Bearing in mind that the seller offers a refund for any non-functional units, I tested them all right away to see if any were DOA. None were! I'll update if any fail in use. They're pretty nice units overall, based on XLSEMI's XL4015 chip. The circuit seems to be pretty much straight out of the datasheet's application notes, with the exception that the output capacitor is 220uF instead of 330uF as suggested on the datasheet. The boards all appear clean, undamaged, and well soldered. In testing, their output regulation versus load and input voltage seems excellent. Output voltage remained solid at 5.0V from ~9-14V input voltage and 0-0.5A output current. At 0.5A, only the toroidal inductor got vaguely warm. All other components remained cool to the touch after several minutes, even without installing the included heat sink. Low current efficiency isn't great, but that's to be expected. Even at ~9V in, 5V @ 51mA out, though, I measured just short of 70% efficiency, which saves about 10mA current drain versus a linear regulator. A simple modification to slightly boost low current performance would be to remove the power LED from the board. At 5V out, I measured a current consumption of 0.65mA by the LED. The only downside? I didn't get the pictured standoffs. It's a minor complaint, as I'm probably not going to be using them, but it would have been nice to receive everything as pictured. --- In case it's of any use to anybody, here's a summary of the notes I took while testing all four units. It's not a broad battery of tests, since I mostly just wanted to make sure they'd work in my lower-current application, but maybe they'll be of use to someone. Results: No load output voltage: 5.00V, 5.00V, 5.00V, 5.00V 10 ohm load output voltage: 4.99V, 5.00V, 5.00V, 5.00V No load input current (@13.6V): 5.0mA, 4.9mA, 4.8mA, 4.6mA 10 ohm load input current (@13.6V): 210mA, 220mA, 210mA, 210mA Average efficiency: 86.5% Additional efficiency testing on one unit only: With 97.7 ohm load and output set to 5.00V (51.1mA out): 13.6V in: 31.4mA draw, 59.9% efficiency 8.84V in: 41.6mA draw, 69.6% efficiency LED current consumption: 0.65mA (3.32V across 5.1k resistor)

## Features

- Input voltage range：4～38V (Note:input voltage not over 38V)
- Output voltage range：1.25-36VDC adjustable.Output current: 0-5A,Output power: 75W
- High conversion efficiency up to 96%
- Updated Version: updated from LM2596 and better than it, with reverse voltage protection, over-temperature and short-circuit protection, thus making it much safer to use
- 100% SATISFICATION SERVICE: If there are any problem with our products, please feel free to contact us. you can request a refund for any single module and no need to return it.; Any problems you can contact us and we will try our best to resolve it till you satisfied.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079N9BFZC |
| Best Sellers Rank | #104,499 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #381 in Power Converters |
| Date First Available | February 6, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.564 ounces |
| Item model number | 5864305253 |
| Manufacturer | D-PLANET |
| Product Dimensions | 3.15 x 1.57 x 0.67 inches |
| UPC | 721968030648 |

## Product Details

- **Brand:** dkplnt
- **Current Rating:** 5 Amps
- **Mounting Type:** PCB Mount
- **Power Source:** Dc Powered
- **Specification Met:** CE, RoHS, UL

## Images

![D-Planet [4-Pack] 5A DC-DC Adjustable Buck Converter 4~38v to 1.25-36v Step Down Power Supply High Efficiency Voltage Regulator Module - Image 1](https://m.media-amazon.com/images/I/71hsjeaahRL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great value, easy to setup, voltage drifts a little bit as load increases.
*by C***T on April 12, 2020*

I'm building an Arduino-based lithium battery charging rig, mostly for fun and learning, but also so that I can recycle old laptop batteries into solar power storage. I'm using these buck converters to step 12v supply down to 5v for powering TP4056 charge controller boards that charge 18650 batteries. Each of the 'battery modules' in the picture handles 4 batteries, and could draw up to 20 watts. So putting one of these buck converters on each module lets me distribute power at 12v instead of 5v, significantly reducing current flow, wire size, and voltage drop. The output voltage of the buck converter stays fairly steady, but it does drop as load increases. Adjusting the output voltage is straightforward, but make sure you turn the pot down before connecting anything. The units ship with the pot adjusted to full output voltage! With 12v input, and adjusted to 5v output with no load, here are the drops I saw as load was applied: 0.0a - 5.0v 0.5a - 4.93 1a - 4.86v 2a - 4.70v 3a - 4.55v Abruptly disconnecting the 3a load, voltage returned to the initial 5v setting. Using the 'max' function of my multimeter, I did not see any spike or overcorrection. These work really well for making a big step down ahead of anything that uses a linear regulator for final voltage regulation. The closer you can tune these to the final voltage you need for the anticipated load, the less energy the linear regulator will need to dissipate. From my measurements, these appear to use a common ground. So the negative output isn't really necessary as it is the same as the negative input. These are great little devices, with lots of uses. Definitely recommended.

### ⭐⭐⭐⭐⭐ They work!
*by C***S on February 26, 2019*

I just received these today. Bearing in mind that the seller offers a refund for any non-functional units, I tested them all right away to see if any were DOA. None were! I'll update if any fail in use. They're pretty nice units overall, based on XLSEMI's XL4015 chip. The circuit seems to be pretty much straight out of the datasheet's application notes, with the exception that the output capacitor is 220uF instead of 330uF as suggested on the datasheet. The boards all appear clean, undamaged, and well soldered. In testing, their output regulation versus load and input voltage seems excellent. Output voltage remained solid at 5.0V from ~9-14V input voltage and 0-0.5A output current. At 0.5A, only the toroidal inductor got vaguely warm. All other components remained cool to the touch after several minutes, even without installing the included heat sink. Low current efficiency isn't great, but that's to be expected. Even at ~9V in, 5V @ 51mA out, though, I measured just short of 70% efficiency, which saves about 10mA current drain versus a linear regulator. A simple modification to slightly boost low current performance would be to remove the power LED from the board. At 5V out, I measured a current consumption of 0.65mA by the LED. The only downside? I didn't get the pictured standoffs. It's a minor complaint, as I'm probably not going to be using them, but it would have been nice to receive everything as pictured. --- In case it's of any use to anybody, here's a summary of the notes I took while testing all four units. It's not a broad battery of tests, since I mostly just wanted to make sure they'd work in my lower-current application, but maybe they'll be of use to someone. Results: No load output voltage: 5.00V, 5.00V, 5.00V, 5.00V 10 ohm load output voltage: 4.99V, 5.00V, 5.00V, 5.00V No load input current (@13.6V): 5.0mA, 4.9mA, 4.8mA, 4.6mA 10 ohm load input current (@13.6V): 210mA, 220mA, 210mA, 210mA Average efficiency: 86.5% Additional efficiency testing on one unit only: With 97.7 ohm load and output set to 5.00V (51.1mA out): 13.6V in: 31.4mA draw, 59.9% efficiency 8.84V in: 41.6mA draw, 69.6% efficiency LED current consumption: 0.65mA (3.32V across 5.1k resistor)

### ⭐⭐⭐⭐ Working well so far!
*by J***N on March 5, 2025*

I'm using one of these in a custom light setup, converting down from a 20v Porter Cable battery pack to 12v. These seem to work pretty well so far. The mounting holes are oddly placed, but I'm attaching a pic of the dimensions in case you want to 3d print your own tray or mounting enclosure.

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-03-21*