$13.99
Get Fast, Free Shipping with Amazon Prime FREE Returns
FREE delivery Friday, May 3 on orders shipped by Amazon over $35. Order within 13 hrs 5 mins
In Stock
$$13.99 () Includes selected options. Includes initial monthly payment and selected options. Details
Price
Subtotal
$$13.99
Subtotal
Initial payment breakdown
Shipping cost, delivery date, and order total (including tax) shown at checkout.
Ships from
Amazon
Ships from
Amazon
Sold by
DKPLNTT
Sold by
DKPLNTT
Returns
Eligible for Return, Refund or Replacement within 30 days of receipt
Eligible for Return, Refund or Replacement within 30 days of receipt
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
Read full return policy
Returns
Eligible for Return, Refund or Replacement within 30 days of receipt
This item can be returned in its original condition for a full refund or replacement within 30 days of receipt.
Read full return policy
Payment
Secure transaction
Your transaction is secure
We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more
Payment
Secure transaction
We work hard to protect your security and privacy. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Learn more

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

4.3 4.3 out of 5 stars 408 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Power Converters by dkplnt
$13.99 with 13 percent savings
List Price: $16.00

The List Price is the suggested retail price of a new product as provided by a manufacturer, supplier, or seller. Except for books, Amazon will display a List Price if the product was purchased by customers on Amazon or offered by other retailers at or above the List Price in at least the past 90 days. List prices may not necessarily reflect the product's prevailing market price.
Learn more
Get Fast, Free Shipping with Amazon Prime
FREE Returns
{"desktop_buybox_group_1":[{"displayPrice":"$13.99","priceAmount":13.99,"currencySymbol":"$","integerValue":"13","decimalSeparator":".","fractionalValue":"99","symbolPosition":"left","hasSpace":false,"showFractionalPartIfEmpty":true,"offerListingId":"3Pyh4DqVveljrby5LarWDcWp8K2oinU%2BFu2qqjgWhs2iYTAILt7jn3YhlGRraW2LNnMAV%2B9HI%2BSN9f7B4fyLROOiynrbOKH1ArkO3YI7HENje%2BZUC6kuUo%2BuUt6iGHDJ3A2A3qHhNL3CBGcqsp6hl8TlcZ2TCSYumk7wQuLHGjNR1Dkohpan5QPRyBGSlw8c","locale":"en-US","buyingOptionType":"NEW","aapiBuyingOptionIndex":0}]}

Purchase options and add-ons

Brand dkplnt
Current Rating 5 Amps
Item Weight 16 Grams

About this item

  • 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.

Frequently bought together

D-Planet [4-Pack] 5A DC-DC Adjustable Buck Converter 4~38v to 1.25-36v Step Down Power Supply High Efficiency Voltage Regulat
$13.99
Get it as soon as Friday, May 3
In Stock
Sold by DKPLNTT and ships from Amazon Fulfillment.
+
Todiys New 10Pcs for KBPC608 KBPC-608 KBPC608PBF 800V 6A DIP-4 Single Phase Silicon Bridge Rectifiers KBPC608-PBF
$8.95
Get it as soon as Friday, May 3
Only 20 left in stock - order soon.
Sold by laptop-part and ships from Amazon Fulfillment.
+
10 Pcs 1000uF 25V Capacitors, Aluminum Electrolytic Capacitor 10x17mm(0.39 x0.67in) for Industrial Electrical, Electronic DIY
$3.96 ($0.40/Item)
Get it as soon as Friday, May 3
In Stock
Sold by YEONE and ships from Amazon Fulfillment.
Total price:
To see our price, add these items to your cart.
Details
Added to Cart
Some of these items ship sooner than the others.
Show details Hide details
Choose items to buy together.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 3.15 x 1.57 x 0.67 inches; 0.56 ounces
  • Item model number ‏ : ‎ 5864305253
  • Date First Available ‏ : ‎ February 6, 2018
  • Manufacturer ‏ : ‎ D-PLANET
  • ASIN ‏ : ‎ B079N9BFZC
  • Customer Reviews:
    4.3 4.3 out of 5 stars 408 ratings

Product 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.

Looking for specific info?

Customer reviews

4.3 out of 5 stars
4.3 out of 5
408 global ratings

Customers say

Customers like the quality, efficiency, and reusability of the transformer. For example, they mention it's a great product, the output voltage stays rock solid, and it'll stay steady as the load increases. That said, opinions are mixed on performance, temperature, and adjustability.

AI-generated from the text of customer reviews

31 customers mention26 positive5 negative

Customers like the quality of the transformer. They say it is a great product at a reasonable price. Some customers also mention that it is of very high quality and is well worth the upgrade.

"...The boards all appear clean, undamaged, and well soldered...." Read more

"These seem to be a good value for the money, definitely cheaper and smaller than I could make myself...." Read more

"...adjust the Buck converter from there, overall an excellent product with really stable output (Can't speak about the Current yet)" Read more

"...I tested the board with 2S (8.4V) and 3S (12.6V) and it had rock solid output under the full electrical load from the blaster...." Read more

14 customers mention11 positive3 negative

Customers like the efficiency of the transformer. They say the output voltage stayed rock solid, and the quality of build is good. They also say the voltage stays nice and consistent, with no power interruptions or spikes.

"...The output voltage of the buck converter stays fairly steady, but it does drop as load increases...." Read more

"...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...." Read more

"...as some users have noticed, but it isn't true, they are set at a stable output no matter the In Voltage, I recommend this as a tip if you have a..." Read more

"...The voltage appears to be quite stable, and the quality of build is good (no poor solders, looks quality)...." Read more

10 customers mention10 positive0 negative

Customers find the transformer reusable and handy for simple electronics projects. They also say it's a great little device with lots of uses.

"...These are great little devices, with lots of uses. Definitely recommended." Read more

"...None were! I'll update if any fail in use.They're pretty nice units overall, based on XLSEMI's XL4015 chip...." Read more

"These seem to be a good value for the money, definitely cheaper and smaller than I could make myself...." Read more

"...board is perfect for the task based on its accurate output and small form factor...." Read more

8 customers mention8 positive0 negative

Customers find the transformer easy to set up. They say it's simple to connect and use.

"...Looks like a quality product, easy to use connect, and setup...." Read more

"These are super simple to use...." Read more

"...a little voltage drop under load but that’s to be expected and easy to compensate for." Read more

"Works really well. Easy to use. With heat sink they are able to push quite a bit of power." Read more

6 customers mention6 positive0 negative

Customers are satisfied with the output of the transformer. They mention that it is a good product with stable output, fantastic, and well balanced. They also say that it dissipates heat well and is much better than a resistor.

"...They can dim LED's to "bar room" atmosphere brightness. Much better than a resister - the voltage is held to the value you dial in and can handle..." Read more

"...output, it's a great way to get a regulator at a good price that is consistent and dissipates heat well." Read more

"...It works well and is pretty stable +/-.02v...." Read more

"As a single positive supply they are fantastic - very efficient!..." Read more

57 customers mention39 positive18 negative

Customers are mixed about the performance of the transformer. Some mention that it works really well for making a big step down ahead of anything that, and works fine for 1A loads. They are also pleased with the performance, and say that it's great for small projects when you need a set voltage. However, others say that one of them failed immediately and started smoking, while the other three did not work. They also say that the outputs don't seem to do well open circuit for adjusted voltage.

"...These work really well for making a big step down ahead of anything that uses a linear regulator for final voltage regulation...." Read more

"...Works and sounds great!" Read more

"...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..." Read more

"...I did buy some 20 AWG wire and hooked the unit up. I am extremely pleased with the performance" Read more

20 customers mention8 positive12 negative

Customers are mixed about the temperature of the transformer. Some mention that it works well with low heat, while others say that it gets quite hot for continuous load. However, some customers say the transformer has over current over temperature protection.

"...At 0.5A, only the toroidal inductor got vaguely warm...." Read more

"...at 15v under load, appear to be functioning well, and remain cool to the touch. The third one adjusted to 15v and dropped to 3v under load...." Read more

"...The little toroid core (or the wire wrapped around it) WAS a bit warm after the 2-hour burn-in time, but not so warm as to make me want to withdraw..." Read more

"...way to get a regulator at a good price that is consistent and dissipates heat well." Read more

15 customers mention9 positive6 negative

Customers have mixed opinions about the adjustability of the transformer. Some find it straightforward to adjust the output voltage, great for regulating the voltage down for LED's like a dimmer, and basic. They say they can dial the output to considerable precision. However, others say that the output cannot be adjusted and the adjustment potentiometer does not do anything.

"...Adjusting the output voltage is straightforward, but make sure you turn the pot down before connecting anything...." Read more

"...The last one would not adjust voltage at all and passed the 20v through regardless of adjustment. If all 4 worked this would be a 5 star product...." Read more

"...So I'm satisfied that these will be quite useful for a DC Filament Regulator in my vacuum tube audio projects, and far superior to the LM338 5-Amp..." Read more

"...Very Good device for voltage control to lower or increase within the range the specifications gives for this board!..." Read more

Works as advertised... When intact
4 Stars
Works as advertised... When intact
The boards handle more current than the standard LM2596 models, coming with an attachable heatsink and an induction toroid wired in. One of my boards arrived with a capacitor broken off, so be sure to inspect them carefully before use...
Hide
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

Colin Grant
5.0 out of 5 stars Great value, easy to setup, voltage drifts a little bit as load increases.
Reviewed in the United States on April 12, 2020
Verified Purchase
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.
6 people found this helpful
Helpful
 Report
mechanaxe
5.0 out of 5 stars Worked great for dropping a tool battery voltage from 24VDC to 19VDC.
Reviewed in the United States on January 20, 2024
Verified Purchase
Picked up a clearance guitar amplifier that was missing the 19VDC power supply. Instead of spending another $40 to replace it, I converted it to battery power for less than $20 (already had multiple batteries from my cordless tool collection). Purchased the Kobalt 24V battery adapter and the DC - DC buck converter and mounted it in the back of the amplifier. Powered the converter up, dialed the voltage down to 19VDC and wired it into the amp. Works and sounds great!
Customer image
mechanaxe
5.0 out of 5 stars Worked great for dropping a tool battery voltage from 24VDC to 19VDC.
Reviewed in the United States on January 20, 2024
Picked up a clearance guitar amplifier that was missing the 19VDC power supply. Instead of spending another $40 to replace it, I converted it to battery power for less than $20 (already had multiple batteries from my cordless tool collection). Purchased the Kobalt 24V battery adapter and the DC - DC buck converter and mounted it in the back of the amplifier. Powered the converter up, dialed the voltage down to 19VDC and wired it into the amp. Works and sounds great!
Images in this review
Customer image Customer image
Customer imageCustomer image
Helpful
 Report
Rich R
4.0 out of 5 stars Good product great price
Reviewed in the United States on January 24, 2020
Verified Purchase
Received product in 1 day. I haven't had a chance to install it yet but here are my first impressions.
They did not come with the standoffs as pictured. Heat sinks only. This is Ok because of the price and I will not be using the stand offs. The holes for wiring them up will not fit an 18AWG stranded wire. They will fit a 18AWG solid wire but it makes the assembly stiff and I don't want to put any undue stress on rhe PCB. I could use a 20AWG stranded wire which will work but I like the guard band I get with the 18AWG wire. 20AWG= 6 amps 18AWG= 9,5 amps. ( I will have to go buy some 20AWG stranded) The current will never get that high but the temperature in the ceiling of the RV will get hot when the sun is out and it will lower the current rating. This is driving a Vent fan motor which on High speed will draw 3.8 amps. As I don't want to have to do ths more than once. I like to give myself plenty of guard band as far as tolerances go. I will update once the installation is complete. I am waiting for the fan motor controller board which blew when the charging circuit for my batteries went above the 13.4 volts controller board threshold. I will set this to 12.0 Volts so I don't have the problem again. update 1-25-2020
I did buy some 20 AWG wire and hooked the unit up. I am extremely pleased with the performance
One person found this helpful
Helpful
 Report
Chris
5.0 out of 5 stars They work!
Reviewed in the United States on February 26, 2019
Verified Purchase
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)
80 people found this helpful
Helpful
 Report

Top reviews from other countries

Translate all reviews to English
gerardo e.
5.0 out of 5 stars BUEN CIRCUITO SEPT DOWN
Reviewed in Mexico on March 7, 2021
Verified Purchase
Lo use para bajar un voltaje de 24 vdc a 12 vdc para el funcionamiento de un fan de 12 vdc
Report
Nando
4.0 out of 5 stars Works exactly as described, but here's what is missing in the description:
Reviewed in Canada on December 5, 2023
Verified Purchase
This item works as described and works exactly for what I need it for. YAY.
But the following is what is missing in the description:
1) The holes to hookup wires will not accept 18 gauge because the hole is too small.
Here's what they did wrong: since the item can do 5 amps, and if you have a wire that
is some length, then 18 gauge is far too thin. Plus, it's a plate-through hole
so if you drill it wider, you are removing the electrical connection between top and
bottom - and you just might introduce an un-intended consequence.
2) There is a small LED which lights when it is on. Nice touch.
3) -Vin is electrically identical as -Vout.
4) A little heat sink is provided separately. It's in the picture, but I now understand the picture
showing the heat sink off to the side of the board.
5) There are two mounting holes. I didn't notice them in the pictures.
Report