---
product_id: 280575558
title: "10pcs DC Buck Converter"
brand: "drok"
price: "€ 29.88"
currency: EUR
in_stock: true
reviews_count: 8
category: "Drok"
url: https://www.desertcart.de/products/280575558-10pcs-dc-buck-converter
store_origin: DE
region: Germany
---

# Up to 97% efficiency Adjustable 1-16V output Max 3A output current 10pcs DC Buck Converter

**Brand:** drok
**Price:** € 29.88
**Availability:** ✅ In Stock

## Summary

> ⚡ Tiny size, massive power — step down your voltage, step up your game!

## Quick Answers

- **What is this?** 10pcs DC Buck Converter by drok
- **How much does it cost?** € 29.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/280575558-10pcs-dc-buck-converter)

## Best For

- drok enthusiasts

## Why This Product

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

## Key Features

- • **Compact Powerhouse:** Tiny form factor smaller than a dollar coin fits seamlessly into tight spaces without compromising performance.
- • **Energy-Smart Efficiency:** Delivers up to 97% conversion efficiency, maximizing battery life and minimizing heat generation.
- • **Built-In Safety & Control:** Integrated short circuit protection and enable control port for hassle-free, reliable operation.
- • **Precision Voltage Control:** Easily switch between fixed or adjustable output voltages (1.8V to 16V) to power your projects with exactness.
- • **Versatile Multi-Pack Value:** Get 10 high-quality modules for under $20—perfect for prototyping, scaling, or sharing with your tech squad.

## Overview

The DROK 10pcs DC Buck Converter set offers ultra-compact, high-efficiency voltage regulation with adjustable or fixed outputs ranging from 1V to 16V and a max current of 3A. Designed for professionals and makers alike, these modules combine precision control, built-in safety features, and a form factor smaller than a dollar coin, making them ideal for powering everything from IoT devices to Raspberry Pi projects with reliable, stable voltage conversion.

## Description

Buy DROK DC 12V to 5V Buck Converter, 10pcs Mini Voltage Regulator Board DC 4.5-20V 12V 9V Step Down to 1-16V 5V Reducer 3A Fixed Adjustable Volt Output Transformer Power Supply Stabilizer Module: Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great voltage regulator for many electronics applications. Just read the directions before using it! - I bought these to power an ESP32 devkit boards. They are a little bit weird if you haven't used this type of board before since you have to modify several solder pads to get the output that you want. In my case I wanted a 3.3V output so I solder bridged the 3.3V output pads and desoldered/split the adjustable voltage enable pads and viola! Perfect 3.33V output. Voltage is stable under load and the ESP32 seems quite happy with the power it is getting. It functions perfectly as advertised and I am happy with it so far. These boards seem very well made with clean, well manufactured PCB's, clean parts installation, clear markings and good soldering throughout. They are small enough to fit easily into tight project spaces and the choice of multiple fixed voltages as well as the option for a variable user set voltage makes these boards very versatile. If you are looking for a small, clean, reliable power source for low power applications I would definitely recommend these boards.
Review: Very usable little switcher. Recommended!!! - This is a great little switcher, and this is coming from a EE with 40+ years of product development experience, including switching PS design for Burr-Brown (now TI), so I do know something about this‼! Granted, the load regulation is not “awesome”, but is still decent for 95% of applications. No load 5V output is 4.99V, and at 1A it is 4.80V. In case you are worrying about dipping below 4.75V (TTL/USB…), use adjustable mode, and set the output to 5.20V, and you’ll be fine. If you want perfect, go and spend $30-$100 apiece for an industrial switcher… which will be much larger in size. This one is <$2 per board, so, let’s all be sensible when passing judgment. I do like the decent efficiency, important if running on batteries. Running 12V input, and 5V output, it barely gets warm at 1A (chip at ~40C with spot IR). I am running a Raspberry Pi on it, with a RAK Gateway, along with an external Cellular Hotspot. No issues what so ever. Some of the equipment presents 1.5A-2A fast peak loads, and this switcher handles it just fine. Dropout voltage is about 0.8V, meaning you need minimum of 5.8V on the input to get 5V on the output. Below this the supply tracks the input, modulated by the load line imperfection. I temperature tested it in the oven, at 60C ambient to simulate the inside of the outdoor case in the summer Sun, and it was OK, but you may want to mount it on a metal slab with conductive adhesive tape to be safe, as the junction approaches 125C. Interestingly, the output voltage di d not move more than few mV at 60C. It is interesting to note that this switcher has no issues feeding another chained switcher: I also needed 3.8V, but my system could not run this switcher of the 12V, for system reasons that are beyond the scope here. I found that chaining them works fine, with no need for additional caps in between. This was a surprise to me. I tried to chain 4 of them, just for fun, and it worked OK too. I read some of the comments: If you can’t cut a trace to disable the default mode, you should not be playing with this. This is clearly spelled out in the desertcart listing. To me, it took an Exacto-knife, and 10 seconds. Granted, the module size is tiny (which is the whole idea), so you may need some magnification, depending on your age. I used a bino-microscope, but could have done without if I had to. Remember – this is a <$2 module. As a value it is absolutely awesome. The design is average in my estimation, but consistent with low price, and will work for you. As my vote, I purchased another 10 for my lab. That should tell you what you need to know.

## Features

- Parameter --- For DROK 5V volt step down regulator: Input voltage: DC 4.5-20V; Output voltage can be adjustable or fixed. Adjustable range: 1-16V; Fixed voltage: 1.8V, 2.5V, 3.3V, 5V, 9V, 12V; Output current: Max 3A (peak: 3A, long-term: within 2A); Power: 10W.
- Output Voltage Adjustable or Fixable --- The tiny buck converter board can be changed to adjustable output voltage or a fixed one. The reducer is default to be used for adjustable voltage output. If you want to get fixed voltage output, you need to cut off the Pad A by using a sharp thing such as a knife, then weld together the port of the fixed voltage you want.
- High Efficiency --- Big energy in small size. The conversion efficiency of this volt transformer can be up to 97% (typical value: >90% when step down 12V to 5V 2A).
- Protection and Enable Control --- The 12V buck converter is designed with output short circuit protection, but please do not keep short circuit for a long time. Also, the reducer is equipped with an integrated enable port which defaults the working mode that it will be off when it is at low electric level off, which bring a great convenience for users.
- NOTE --- This mini buck converter is really very tiny, much smaller than a 1-dollar coin, nearly a half of the coin.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08Q3TKJH5 |
| Best Sellers Rank | #30,997 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #112 in Power Converters |
| Customer Reviews | 4.2 4.2 out of 5 stars (666) |
| Date First Available | December 9, 2020 |
| Item Weight | 0.634 ounces |
| Item model number | 0adf6fa0-ec89-47e9-ab22-d680a819565e |
| Manufacturer | DROK |
| Package Dimensions | 5.71 x 2.91 x 1.61 inches |

## Product Details

- **Brand:** DROK
- **Color:** Black
- **Input Voltage:** 20 Volts
- **Item Weight:** 0.63 Ounces
- **Output Voltage:** 5 Volts

## Images

![10pcs DC Buck Converter - Image 1](https://m.media-amazon.com/images/I/611P124fLJL.jpg)
![10pcs DC Buck Converter - Image 2](https://m.media-amazon.com/images/I/61G6yKHh12L.jpg)
![10pcs DC Buck Converter - Image 3](https://m.media-amazon.com/images/I/71AZ2j+nf2L.jpg)
![10pcs DC Buck Converter - Image 4](https://m.media-amazon.com/images/I/71G2+HN7+0L.jpg)
![10pcs DC Buck Converter - Image 5](https://m.media-amazon.com/images/I/71X50Ntz1+L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great voltage regulator for many electronics applications. Just read the directions before using it!
*by E***C on November 26, 2025*

I bought these to power an ESP32 devkit boards. They are a little bit weird if you haven't used this type of board before since you have to modify several solder pads to get the output that you want. In my case I wanted a 3.3V output so I solder bridged the 3.3V output pads and desoldered/split the adjustable voltage enable pads and viola! Perfect 3.33V output. Voltage is stable under load and the ESP32 seems quite happy with the power it is getting. It functions perfectly as advertised and I am happy with it so far. These boards seem very well made with clean, well manufactured PCB's, clean parts installation, clear markings and good soldering throughout. They are small enough to fit easily into tight project spaces and the choice of multiple fixed voltages as well as the option for a variable user set voltage makes these boards very versatile. If you are looking for a small, clean, reliable power source for low power applications I would definitely recommend these boards.

### ⭐⭐⭐⭐⭐ Very usable little switcher. Recommended!!!
*by C***C on February 9, 2021*

This is a great little switcher, and this is coming from a EE with 40+ years of product development experience, including switching PS design for Burr-Brown (now TI), so I do know something about this‼! Granted, the load regulation is not “awesome”, but is still decent for 95% of applications. No load 5V output is 4.99V, and at 1A it is 4.80V. In case you are worrying about dipping below 4.75V (TTL/USB…), use adjustable mode, and set the output to 5.20V, and you’ll be fine. If you want perfect, go and spend $30-$100 apiece for an industrial switcher… which will be much larger in size. This one is <$2 per board, so, let’s all be sensible when passing judgment. I do like the decent efficiency, important if running on batteries. Running 12V input, and 5V output, it barely gets warm at 1A (chip at ~40C with spot IR). I am running a Raspberry Pi on it, with a RAK Gateway, along with an external Cellular Hotspot. No issues what so ever. Some of the equipment presents 1.5A-2A fast peak loads, and this switcher handles it just fine. Dropout voltage is about 0.8V, meaning you need minimum of 5.8V on the input to get 5V on the output. Below this the supply tracks the input, modulated by the load line imperfection. I temperature tested it in the oven, at 60C ambient to simulate the inside of the outdoor case in the summer Sun, and it was OK, but you may want to mount it on a metal slab with conductive adhesive tape to be safe, as the junction approaches 125C. Interestingly, the output voltage di d not move more than few mV at 60C. It is interesting to note that this switcher has no issues feeding another chained switcher: I also needed 3.8V, but my system could not run this switcher of the 12V, for system reasons that are beyond the scope here. I found that chaining them works fine, with no need for additional caps in between. This was a surprise to me. I tried to chain 4 of them, just for fun, and it worked OK too. I read some of the comments: If you can’t cut a trace to disable the default mode, you should not be playing with this. This is clearly spelled out in the Amazon listing. To me, it took an Exacto-knife, and 10 seconds. Granted, the module size is tiny (which is the whole idea), so you may need some magnification, depending on your age. I used a bino-microscope, but could have done without if I had to. Remember – this is a <$2 module. As a value it is absolutely awesome. The design is average in my estimation, but consistent with low price, and will work for you. As my vote, I purchased another 10 for my lab. That should tell you what you need to know.

### ⭐⭐⭐⭐⭐ Great size and price
*by B***L on November 1, 2025*

Great little buck converters. They worked fine. I got these because of the size, ajustibility, and the number in the package. I bought some male header pins separately to solder on. They work great with the pins!

## Frequently Bought Together

- DROK DC 12V to 5V Buck Converter, 10pcs Mini Voltage Regulator Board DC 4.5-20V 12V 9V Step Down to 1-16V 5V Reducer 3A Fixed Adjustable Volt Output Transformer Power Supply Stabilizer Module
- ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects
- 22 AWG Solid Core Wire Kit – 22 Gauge PVC Coated Copper Wires Pre-Tinned 33ft or 10m Each, 6 Colors (Black, Red, Yellow, Green, Blue, White), Hook Up Wire Kit from Plusivo

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-01-24*