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DROK Buck Converter 12v to 5v, 5A USB Voltage Regulator DC 9V-36V Step Down to DC 5V-5.3V 5.2V 3.5-6A Volt Transformer Power Supply Module for Phone Fast Charging

4.6 4.6 out of 5 stars 659 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Power Converters by DROK

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1pcs
Black Pro

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About this item

  • DROK buck converter input voltage is DC 9v-36v, output voltage is 5.2V (5V-5.3V available according to your input voltage).
  • The step down regulator adopts synchronous rectification scheme to provide wide voltage range, large current and high efficiency.
  • Our buck voltage regulator is user-friendly, accompany with DC interface and connecting terminals, make it easier to be connected to different devices.
  • The voltage reducer is with USB interface and quick charge identifying chip, and is compatible with Android and Apple.
  • Note: Input different voltage will output different power: input DC 9-24V, output 5.2V/6A/30W; input DC 24-32V, output 5.2V/5A/25W; input DC 32-36V, output 5.2V/3.5A/18W.
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DROK Buck Converter 12v to 5v, 5A USB Voltage Regulator DC 9V-36V Step Down to DC 5V-5.3V 5.2V 3.5-6A Volt Transformer Power Supply Module for Phone Fast Charging

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Product Description

Integrity, Quality, Innovation, Customer----DROK

DROK has been engaged in technical research, development, manufacture and sale of all kinds of buck converters for many years.

With acquisition of leading technology, we strictly enforce quality management system and improve operational management, dedicate to produce high performance voltage step down transformers for our valued customers.

Wiring connection
Charge your phone

Buck Converter detail

Buck Converter detail

Different Input Different Output

USB Output

Reverse Connection Protection Diode

Much safer to use the converter module with the protection.

DC Plug

There are connection terminals and a DC plug, which is very easy to use the voltage converter.

Different Input for Different Output

Input DC 9-24V, output 5.2V/6A/30W;

Input DC 24-32V, output 5.2V/5A/25W;

Input DC 32-36V, output 5.2V/3.5A/18W.

USB Output DC 5.0V/5A

With a USB port and fast charging identification chip which is compatible with Android and iPhone.

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Customer Reviews
4.6 out of 5 stars
659
4.3 out of 5 stars
1,923
4.1 out of 5 stars
102
4.4 out of 5 stars
1,502
4.6 out of 5 stars
659
4.3 out of 5 stars
1,923
Input Voltage DC 9-36V DC 6-32V DC 5-23V DC 6.5-36V DC 6-32V DC 6-30V
Output Voltage 5-5.3V DC 1.5-32V DC 0.01-18V DC 1.2-32V DC 3-12V DC 7-32V
Max Current 3.5A/5A/6A 5A 3A 4.5A 5V/3.4A; 9V/2.5A; 12V/2A, etc. 5A
CC/CV mode
Display LCD LCD LCD LCD
Case
USB Output

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DROK Buck Converter 12v to 5v, 5A USB Voltage Regulator DC 9V-36V Step Down to DC 5V-5.3V 5.2V 3.5-6A Volt Transformer Power Supply Module for Phone Fast Charging


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
659 global ratings

Customers say

Customers like the charging and performance of the power converter. They mention that it works well as a charger and is excellent value for money. Customers are also satisfied with ease of use, and efficiency. That said, some complain about the lack of mounting holes. Customers also disagree on quality and heat.

AI-generated from the text of customer reviews

71 customers mention61 positive10 negative

Customers like the performance of the power converter. They mention that it works well as a charger, and has never given them issues. Some mention that the product is efficient and works well with 13.8V or 24V.

"...Tested excellent. Good value item !" Read more

"...Seems to work well and YES if you have a QC3 device (I only seem to have one unfortunately) the charging voltage is increased...." Read more

"...That was several months ago and it's still going strong and has never given me issues...." Read more

"Works exactly as described. 6-32VDC input with a steady 5-5.1VDC output...." Read more

29 customers mention26 positive3 negative

Customers generally like the efficiency of the power converter. They say that it delivers steady high power, has a nice DC power in jack, and the voltage output is rock solid. They also say that the power supply is clearly efficient and works for hours without cutting out. They mention that it is great for powering Raspberry Pi 4 and that it has plenty of current.

"Very small, voltage stable, plenty of current, wide selection of voltage inputs and NO hum noise...." Read more

"...Now its trickle charging continuously and have no issues running it 24/7." Read more

"...Even at 4A of current, it didn't seem to run hot, and voltage was solid over the whole range. Should do the job!..." Read more

"...Overall, I love it. It's tiny, efficient, and works well with my Raspberry pi's in waterproof boxes, powered by 12V LiFePo's." Read more

23 customers mention16 positive7 negative

Customers are mixed about the quality of the power converter. Some mention that the build quality is great, using good parts, and is a nice sturdy board. However, others say that it is not sufficient, draws about 2ma in idle, and has less current capacity than advertised.

"...I just got this yesterday.So, far it seems to be using good parts. Except for that 100uF capacitor, it gets too hot for my comfort...." Read more

"...The actual soldered on wire clamps are through hole mounted and seem really secure its just the housing which wiggles around and doesn't inspire..." Read more

"Nice little efficient step-down module! It draws about 2ma in idle, so you can't ever just leave it connected to a battery when not in use...." Read more

"Seems to be of good quality, come with the boards connected. There appears to be a score between the, but still connected...." Read more

19 customers mention19 positive0 negative

Customers find the power converter easy to use. They mention that it is super simple, ideal for low power installations, and very easy to wire. Customers also say that it works and the install time was very quick. They say it is convenient for DIY Raspberry Pi projects and a nice little efficient step-down module. They also say it's great for a more permanent install of anything needing 5 volts from a 12 volt source.

"...That worked and install time was very quick with this method...." Read more

"Nice little efficient step-down module! It draws about 2ma in idle, so you can't ever just leave it connected to a battery when not in use...." Read more

"...and the screenprinting on the bottom of the board makes hooking it up fairly fool proof...." Read more

"...Great for a more permanent install of anything needing 5 volts from a 12 volt source. Highly recommended!" Read more

13 customers mention10 positive3 negative

Customers like the charging of the power converter. They mention that it provides reliable fast charging, a good quality quick charging module, and turbo charges. Some customers also appreciate the fast shipping.

"...Very quickly. It could definitely charge my earpiece very quickly. I am very impressed by it. It definitely needs a good power supply. For sure...." Read more

"Solid performance. Much faster charging of phone or other USB devices than my previous charger this is replacing...." Read more

"...It does do fast-charge, but you have to have good wiring...." Read more

"...It will boost the voltage back up to 5+volts but takes several seconds to respond...." Read more

10 customers mention10 positive0 negative

Customers are satisfied with the value of the power converter. They mention that it is cheap, easy to use, and a great buck device for battery powering Raspberry Pi.

"...Tested excellent. Good value item !" Read more

"...How are you supposed to review THAT? It works, the price is cool. Not a bother.Want a moan?..." Read more

"...It's great value for the money and really easy to install...." Read more

"Walle Robot project. This buck conveter worked as expected and was a great value." Read more

14 customers mention8 positive6 negative

Customers are mixed about the heat of the power converter. Some mention that it doesn't produce too much heat and doesn' t overheat at all, while others say that it can get a little warm but not hot to the touch, even under a constant 2A. Overall, the opinions are mixed, and it's recommended to use the product for applications above 1A.

"...Even at 4A of current, it didn't seem to run hot, and voltage was solid over the whole range. Should do the job!..." Read more

"...I wanted to see how warm they would get. The converter module does get warm, but not too hot to handle...unlike another similar product that got..." Read more

"...It also only ever got slightly warm, never hot.It does however lack holes to screw it to anything...." Read more

"...This does it and doesn't get warm. It puts out about 5.2v at low load. It powers an arduino and a bunch of LEDs (mostly dotstars) without issue...." Read more

9 customers mention0 positive9 negative

Customers are dissatisfied with the holes in the power converter. They say that the lack of mounting holes makes for a more complex build. The small circuit board does not have any mounting points, so it will free float around. Customers also say that there is no great way to mount the board.

"...The small circuit board does not have any holes to anchor down the board to a project box...." Read more

"...You can do it if you are good with the iron.There are no mounting holes, so if you need to mount this, you have to use foam tape or some..." Read more

"...It does however lack holes to screw it to anything. Also the solder points on the back of the PCB mean it won't lay flat, so it needs standoffs...." Read more

"...There are also no mounting points for this board, so it will either free float around on whatever project you have or you will have to come up with..." Read more

Works well. I coupled mine to a twin 18650 pack, great ops !
5 Stars
Works well. I coupled mine to a twin 18650 pack, great ops !
I wanted a compact 5v USB setup for a remote mini camera. Built an attached enclosure, ( with provision for cooling ) made it weather tight. Tested excellent. Good value item !
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Top reviews from the United States

Reviewed in the United States on February 4, 2024
Size: 4pcsColor: Black MiniVerified Purchase
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5.0 out of 5 stars Works well. I coupled mine to a twin 18650 pack, great ops !
Reviewed in the United States on February 4, 2024
I wanted a compact 5v USB setup for a remote mini camera. Built an attached enclosure, ( with provision for cooling ) made it weather tight. Tested excellent. Good value item !
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Reviewed in the United States on August 12, 2022
Size: 4pcsColor: Black MiniVerified Purchase
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5.0 out of 5 stars It Works GREAT With a Battery Made of 2, 3.65v LiFEPO4 Prismatic Cells
Reviewed in the United States on August 12, 2022
Almost 1 & 1/2 years ago, I ordered a 10 pack of 3.2v, 50ah, Prismatic Lifepo4 cells from an online vendor. With 8 of those cells I built a 100 amp hour LiFEPO4 battery. But I had 2, 3.2v, 50ah cells remaining that I did not know what to do with.

I started wondering if there was a USB module that would accept an input of a minimum of 6 volts to which I could connect the battery to charge and power USB devices. Then I discovered the DROK USB DC-DC Step Down Buck Converter capable of taking 6 volts minimum and converting it to a 5V QC 3.0 Charging Module. I read the reviews, good and bad...bad to see what people were complaining about, and decided to buy a set of 4.

I figured that the converter module should work as a USB charging device when connected to the 2 remaining LiFEPO4 cells if the cells are wired in series to produce the required 6+ volts. (See the first picture of the 2 LiFEPO4 cells connected in series with one of the 2 connections coming from the converter module connected.)

The second photo shows both wires connected, and the blue illuminated LED on the converter module. You can see "78% 10 m until full" on the screen of my phone. The third photo shows the charging symbol on the screen. It shows 79%. Sorry for the fuzziness of that picture.

I used a few of the converter modules to charge my phone and tablet for quite a while over the last few days. I wanted to see how warm they would get. The converter module does get warm, but not too hot to handle...unlike another similar product that got far too hot to be safe. And that was only at about 1 amp of current output. I'll be submitting a brutally honest review on that one soon.

I foresee finding an appropriate container in which I will cut holes for the 4 converter modules and the the 50 amp hour battery and use the power source for a portable mega-USB charging station. I'll upload pictures when I get around to making it.

I am very happy that my idea panned out!
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6 people found this helpful
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Reviewed in the United States on September 23, 2023
Size: 1pcsColor: Black ProVerified Purchase
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5.0 out of 5 stars Buck Converter 12v to 5v, DROK 5A USB Voltage
Reviewed in the United States on September 23, 2023
Very small, voltage stable, plenty of current, wide selection of voltage inputs and NO hum noise. The small circuit board does not have any holes to anchor down the board to a project box. Easy, found that it fits inside a prescription pill container. I used the barrel connector for the input voltage.
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Reviewed in the United States on July 25, 2022
Size: 4pcsColor: Black MiniVerified Purchase
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GRX
4.0 out of 5 stars No complaints, has worked well for USB Solar Panel project
Reviewed in the United States on July 25, 2022
I grabbed these to work with a portable tablet sized case solar panel I put together for strictly USB charging. The working connector is one of these USB converter boards.

Seems to work well and YES if you have a QC3 device (I only seem to have one unfortunately) the charging voltage is increased. My QC3 Power bank charges at over 8 volts with a custom 11 volt (open) panel I made.

I can't speak to what type of actual (not reported) Amp limit there really is, as I've only recorded around 8-10 watts going into a device from this small portable panel.

One thing I would advise strongly: If you are going to be pushing this up to 8-10+ watts, you really should invest in a box of small heatsinks and thermal glue. I attached a photo of one of my controllers I took apart to install this heatsink on the Mosfet. These things get Really Hot when you are pushing them up there. I mean, so Hot you wouldn't be able to keep your finger on the chip! That could cause early or even immediate FAILURE.

I was disappointed that even using this connector which -at least- has some of it's own capacitors, the I-phone disconnect problem still exists. Basically, if you lose solar due to Very Bad temporary shading conditions the I-phone will disconnect but it will not reconnect when the conditions then improve.

Every other device I've connected does reconnect though.

Remember, efficiency is going to be increased if the panel puts out voltage closer to the target finished voltage. If it is Tons Higher, the board has to work Harder to drop the voltage down. That's why I use this with the panel I built with open voltage around 11 volts. >A lot of regular solar panels have open voltage closer to 21 volts.<
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2 people found this helpful
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Reviewed in the United States on May 16, 2022
Size: 4pcsColor: Black MiniVerified Purchase
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5.0 out of 5 stars Works like a charm
Reviewed in the United States on May 16, 2022
I have 7.5V DC coming out a previous alarm system hookup. I needed to power a tablet with USB power. I used this converter and it worked out amazing. I tried soldering but I'm not good at that. Instead, I used some solid doorbell wiring (forgot gauge, but it needs to be small enough to fit through holes) and looked it through the two holes on the circuit board. That worked and install time was very quick with this method.

In my use case, I didn't enough power to use quick charging, and the tablet showing a charging message every few seconds. To get around this, I had to disable fast charging on the android tablet and that works like a charm. Now its trickle charging continuously and have no issues running it 24/7.
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Reviewed in the United States on November 1, 2023
Size: 4pcsColor: Black MiniVerified Purchase
Reviewed in the United States on October 1, 2023
Size: 1pcsColor: Black ProVerified Purchase
One person found this helpful
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Reviewed in the United States on November 26, 2023
Size: 4pcsColor: Black MiniVerified Purchase
One person found this helpful
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Top reviews from other countries

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Alberta-Ham
5.0 out of 5 stars Awsome QC 3.0 board for projects.
Reviewed in Canada on December 14, 2023
Size: 4pcsColor: Black MiniVerified Purchase
Wes M.
5.0 out of 5 stars Work great!
Reviewed in Canada on November 5, 2021
Size: 4pcsColor: Black MiniVerified Purchase
Luc
5.0 out of 5 stars Bon achat
Reviewed in Canada on February 21, 2021
Size: 4pcsColor: Black MiniVerified Purchase
Jinyi Leang
5.0 out of 5 stars good item
Reviewed in Canada on July 15, 2020
Size: 4pcsColor: Black MiniVerified Purchase
Amazon Customer
2.0 out of 5 stars Does the bare minimum
Reviewed in Canada on December 10, 2022
Size: 4pcsColor: Black MiniVerified Purchase
One person found this helpful
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