---
product_id: 280575558
title: "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"
brand: "drok"
price: "$32.53"
currency: USD
in_stock: true
reviews_count: 8
category: "Drok"
url: https://www.desertcart.us/products/280575558-drok-dc-12v-to-5v-buck-converter-10pcs-mini-voltage
store_origin: US
region: United States of America
---

# Up to 97% efficiency Compact size < half dollar Adjustable 1-16V output 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

**Brand:** drok
**Price:** $32.53
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your projects smarter, smaller, and cooler!

## Quick Answers

- **What is this?** 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 by drok
- **How much does it cost?** $32.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/280575558-drok-dc-12v-to-5v-buck-converter-10pcs-mini-voltage)

## 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

- • **Bulk Pack for Pros:** 10-pack supply ensures you’re always ready to prototype, build, and innovate without pause.
- • **Ultra-Compact Powerhouse:** Tiny footprint smaller than half a dollar coin—perfect for sleek, space-conscious projects.
- • **Precision Voltage Control:** Customize output from 1V to 16V or lock fixed voltages for tailored power delivery.
- • **Smart Protection & Control:** Built-in short circuit protection plus enable pin for seamless microcontroller integration.
- • **High-Efficiency Energy Saver:** Maximize battery life with up to 97% conversion efficiency, minimizing wasted power.

## Overview

The DROK DC 12V to 5V Buck Converter is a mini voltage regulator board designed for professional-grade power management. Supporting input voltages from 4.5V to 20V, it offers adjustable output from 1V to 16V or fixed voltages including 5V and 12V, with a max current of 3A. Its ultra-compact size, high efficiency up to 97%, and integrated enable control make it ideal for precise, energy-efficient electronics projects. Sold in a convenient 10-pack, it’s perfect for engineers and makers who demand reliable, customizable power solutions.

## 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: WOW! Lowest Quiescent (Qi) Current of MANY! - Basic testing with output fixed at 3.3v and ENable control selected... Output is 3.34v. I didn't think it worked at first, but because I set the pad for ENable control, and that pin must remain set HIGH to maintain output on. MUCH easier than other bucks with EN control to use with a microcontroller! With circuit of 5v USB input and output of resistor-LED- and N-Channel MOSFET, it works fine. But with it keyed off by removing ENable pin power, the quiescent current is only 1.1uA!!!! So NO NEED for high side switching in battery powered project because current draw when keyed off is so amazingly slight!!! I think I just found my new best Buck friend. I like the pins all lined up with standard 2.54 spacing. Easy to breadboard or design into circuit board. Dropping 1.8v from 5v to 3.3v with slightest load of 4mA, there is no noticeable temp rise on the module. With same drop and 500mA load for 10 minutes, I still can't feel any temp change. If it came with a 4.2v fixed output option, I would totally declare this the PERFECT mini Buck! As of initial testing, I totally recommend this board without ANY reservations
Review: Who doesn't need a good buck? - Easy to install. Mind your configuration paperwork. So... read the paperwork. If you are just slapping something together, stop and look for a dedicated supply. This product is configured BY YOU. Don't expect it be shipped with your configuration in mind.

## 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 | #58,210 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #229 in Power Converters |
| Brand | DROK |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 39 Reviews |
| Input Voltage | 20 volts |
| Item Weight | 17.87 g |
| Manufacturer | DROK |
| Number of Items | 10 |
| Number of Outlets | 10 |
| Output Voltage | 5 volts |
| Power Source | Corded Electric |
| Unit Count | 10 Count |

## Product Details

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

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71AZ2j+nf2L.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/71n0xRrs5ZL.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/71G2+HN7+0L.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/81PgV0EWZJL.jpg)
![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 - Image 5](https://m.media-amazon.com/images/I/71X50Ntz1+L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ WOW! Lowest Quiescent (Qi) Current of MANY!
*by D***T on August 24, 2023*

Basic testing with output fixed at 3.3v and ENable control selected... Output is 3.34v. I didn't think it worked at first, but because I set the pad for ENable control, and that pin must remain set HIGH to maintain output on. MUCH easier than other bucks with EN control to use with a microcontroller! With circuit of 5v USB input and output of resistor-LED- and N-Channel MOSFET, it works fine. But with it keyed off by removing ENable pin power, the quiescent current is only 1.1uA!!!! So NO NEED for high side switching in battery powered project because current draw when keyed off is so amazingly slight!!! I think I just found my new best Buck friend. I like the pins all lined up with standard 2.54 spacing. Easy to breadboard or design into circuit board. Dropping 1.8v from 5v to 3.3v with slightest load of 4mA, there is no noticeable temp rise on the module. With same drop and 500mA load for 10 minutes, I still can't feel any temp change. If it came with a 4.2v fixed output option, I would totally declare this the PERFECT mini Buck! As of initial testing, I totally recommend this board without ANY reservations

### ⭐⭐⭐⭐⭐ Who doesn't need a good buck?
*by A***L on June 13, 2026*

Easy to install. Mind your configuration paperwork. So... read the paperwork. If you are just slapping something together, stop and look for a dedicated supply. This product is configured BY YOU. Don't expect it be shipped with your configuration in mind.

### ⭐⭐⭐⭐ A few things are missing from the description but otherwise a great product.
*by C***S on November 30, 2024*

I've purchased about 20 of these now. They are realtly nice for controlling voltages higher than the microcontroller can tolerate. I use these to build small solar power displays with lights, fans, servos and motors. Using their enable pin, these buck converters allow a 3.3 micro to control and downregulate 12-14 volts of power to individual devices without having to separately add a switch, mosfet, or relay. The description of the device however suggests this is done through a pullup resistor. When I read this I thought I could simply overcome a (10k?) pullup resistor with the GPIO output from a micro sourced to ground and the device would shut off. This is not how they work. After a bit of playing, it's evident that there is a solder bridge near the enable pin that needs to be removed (cut or wicked away) before the enable pin can be used. If you simply apply ground to the enable pin it's a dead short and will quickly destroy the device and release the magic blue smoke. Once the solder bridge is cut, there is no pullup or pulldown resistor on the circuit. The voltage will float and act erratically. Once connected to the microcontroller it works perfectly though. This is a really nice feature at this price point and has saved me quite a bit of time wiring switches through other mechanisms. Removing the other solder bridge disconnects the potentiometer that adjusts the voltage just like the description says. The device will then require a new solder bridge on the back side to set the voltage. These pads are quite small and somewhat difficult to manage but it can be done. The potentiometers are a bit wonky and setting a perfect output voltage is a little tricky. From a power-saving standpoint, the device consumes virtually nothing when the enable pin is held low. My DMM reads 1.8 microamps--this is a huge plus over some other systems I have used. Running just an LED for testing purposes (4 mA), the device is 87% efficient. Using a 10 ohm resistor at 5.08v (500 mA) the voltage sags to 5.04 and the efficiency is 76%. Both of these were performed using an input voltage of 7v, efficiency is likely worse at higher voltages. Overall these work well for my purposes. The product description could have been clearer and had more of the details I included in this review.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-31*