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eBoot Mini MP1584EN DC-DC Buck Converter Adjustable Power Supply Module 24V to 12V 9V 5V 3V (6 Pack)

4.4 4.4 out of 5 stars 1,053 ratings
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Purchase options and add-ons
Brand EBOOT
Current Rating 3 Amps
Minimum Frequency 50 Hz

About this item

  • Mini MP1584EN DC to DC buck converter module with a wide operating range
  • Input voltage: 4.5 V to 28 V; Output voltage: 0.8 V to 20 V
  • Output current: 3 A (maximum); Conversion efficiency: 92% (maximum)
  • Output ripple: less than 30 mV; Switching frequency: 1.5 MHz (highest), typically 1 MHz
  • Operating temperature: -45 ℃ to 85 ℃; Size: 22 mm by 17 mm by 4 mm; Warning: do not reverse the positive and negative terminals to avoid any possible damage; Do not use light load (less than 10% of output power) or without load

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eBoot Mini MP1584EN DC-DC Buck Converter Adjustable Power Supply Module 24V to 12V 9V 5V 3V (6 Pack)
eBoot Mini MP1584EN DC-DC Buck Converter Adjustable Power Supply Module 24V to 12V 9V 5V 3V (6 Pack)
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Price $9.65 -15% $16.99
List: $19.99		 $7.99 $15.99 $7.59 $7.99
Delivery
Get it as soon as Friday, May 3
Get it as soon as Friday, May 3
Get it as soon as Friday, May 3
Get it as soon as Friday, May 3
—
Get it as soon as Friday, May 3
Customer Ratings
4.44.4 out of 5 stars1,053
4.24.2 out of 5 stars570
4.44.4 out of 5 stars115
5.05.0 out of 5 stars7
4.44.4 out of 5 stars61
4.44.4 out of 5 stars126
Value for money
4.0
4.1
4.2
—
4.6
3.9
Accuracy
3.9
4.0
3.0
—
5.0
3.7
Easy to use
3.9
3.5
4.2
—
4.5
3.7
Versatility
4.0
3.7
—
—
4.0
—
Sold By
PATELAI
DROK
Aitrip
Aobao US
DZS Elec
Maxmoral
current rating
3 amps
3 amps
3.0 amps, 2.5 amps
3 amps
3 amps
3 amps
minimum frequency
50 hertz
50 hertz
—
—
50 hertz
—
model number
EBOOT-POWER-CONVERTERS-01
—
LM2596
—
MP1584EN-2
LM2596-3A-2

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eBoot Mini MP1584EN DC-DC Buck Converter Adjustable Power Supply Module 24V to 12V 9V 5V 3V (6 Pack)

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Product Description


eBoot Mini MP1584EN DC to DC buck converter adjustable power supply module 24V to 12V 9V 5V 3V, 6 Pack

Specifications:
Input voltage: 4.5 V to 28 V
Output voltage: 0.8 V to 20 V
Output current: 3 A (maximum)
Conversion efficiency: 92% (maximum)
Output ripple: less than 30 mV
Switching frequency: 1.5 MHz (highest), typically 1 MHz
Operating temperature: -45 ℃ to 85 ℃
Size: 22 mm by 17 mm by 4 mm
Application: DIY mobile power, monitor power supply, power buggies, camera power supply, car power, communications equipment supply,etc.

Package includes:
6 x Mini MP1584EN DC to DC buck converter

You can adjust the voltage by placing a multi-meter on the output, synchronously, using a screw driver to adjust a potentiometer. It can be minute adjustments to achieve a precise voltage.

Kindly reminder
These boards are adjustable current limiting, fixed 3A current limit.
Please make sure that this module within its working range before using.
Please don't output short circuit, otherwise the board would burn out.
When setting the parameter, please make sure output voltage is stable before using the module to avoid any possible damage.

Tips:
Please check if the product package is intact before opening.
Please check if the negative and positive terminals are accessed correctly before operating.
The input voltage should not be over 28 V to avoid damage.

Customer reviews

4.4 out of 5 stars
4.4 out of 5
1,053 global ratings

Customers say

Customers like the performance and value of the transformer. They mention that it works well, is reliable, and is great for all sorts of electronic projects. Some have issues with adjustability. Opinions are mixed on size, ease of use, quality, output voltage, and noise.

AI-generated from the text of customer reviews

107 customers mention89 positive18 negative

Customers like the performance of the transformer. For example, they mention it works well, the potentiometer works well to dial the voltage output, and it's simple to use. Some say it'll work great for all sorts of electronic projects and that it runs reliably. Some mention it'd be a dream in terms of form factor and performance.

"It worked great when I tested one of them. So I permanently glued it to my setup. And now the potentiometer is not changing the voltage on 3 of them...." Read more

"Seems to work well even at low load if the input voltage is at least a few volts higher than the output voltage...." Read more

"The actual functionality of the product is really good...." Read more

"I used 4 of these to swap the fans on my Ender 3 v2 and they worked out great!..." Read more

23 customers mention23 positive0 negative

Customers like the value of the transformer. They say it's excellent value for money, great as a low cost electronic firework, and incredibly cheap.

"...Love it overall, great package size, efficient and a wonderful value. Good to have in the bin for later projects." Read more

"...and stay dang steady.. These are without a doubt the best cost to preformance ratio bucks you can buy......" Read more

"...this tiny board which is not convenient for many but overall great value for the price." Read more

"...Excellent value for the dollar, and they do work just fine...." Read more

48 customers mention26 positive22 negative

Customers are mixed about the quality of the transformer. Some mention that the build quality is good, reliable, and stable. They also say that it comes in perfect condition. However, some customers report that the quality is fragile and could be better. They mention that they have encountered a few broken components and that the boards are very tiny and easily damaged.

"...I'm using with 12v input and 3.3 volts output. Very stable with almost no current draw when output is idle." Read more

"The boards are very tiny, and easily damaged. I had a circuit that was working using them that stopped working and ruined a bunch of components...." Read more

"...They're extremely easy to use and the build quality is good too, aside from the functional but impossibly cheap set screw...." Read more

"...So it's too cheap to really be useful...." Read more

45 customers mention20 positive25 negative

Customers are mixed about the output voltage of the transformer. Some mention that it manages the voltage on the capacitor very nicely, and can regulate power at 5V very well. However, others say that the potentiometer changes the voltage to an extreme amount, and it's hard to control voltages beyond the nearest 0.5 volts.

"...So I permanently glued it to my setup. And now the potentiometer is not changing the voltage on 3 of them...." Read more

"...This is a high efficiency buck converter, good for actually pretty decent loads, and you get 6 of them...." Read more

"...bit tedious and requires a small (tiny) screwdriver and it is somewhat hard to dial in, but it works with a little patience...." Read more

"...are incredibly cheap and excellent quality.. over preform and stay dang steady.. These are without a doubt the best cost to preformance ratio bucks..." Read more

36 customers mention23 positive13 negative

Customers are mixed about the size of the transformer. Some mention that it's very compact and can easily fit it into projects. Others say that the boards are very tiny and easily damaged. The pot is small and the buck converters are smaller than picture suggests.

"...Love it overall, great package size, efficient and a wonderful value. Good to have in the bin for later projects." Read more

"The boards are very tiny, and easily damaged. I had a circuit that was working using them that stopped working and ruined a bunch of components...." Read more

"...This looked like a good option - small and "agile".As others have written - it's HARD to adjust...." Read more

"...These work perfectly.Pros:- Extremely small- 2 +/- output pads- No noise-..." Read more

34 customers mention21 positive13 negative

Customers are mixed about the ease of use of the transformer. Some mention it's nice and easy to set up, and easy wires. However, some say the potentiometer is way too finicky and nearly impossible to set. They also say it came with no instructions or data sheet.

"...They're extremely easy to use and the build quality is good too, aside from the functional but impossibly cheap set screw...." Read more

"...but for my use of 5V to 3V the potentiometer is just way, way too finicky and nearly impossible to adjust with accuracy...." Read more

"...Setting the voltage out put, is fairly simple. Worked, went from 20v to 12v no problem little fiddly but not to bad." Read more

"...Simple to use, gets the job done.No idea why Amazon wanted them rated for Warmth and Sheerness but tossed in 5 stars for those too...." Read more

11 customers mention4 positive7 negative

Customers are mixed about the noise of the transformer. Some mention that it produces relatively low noise on the output, and is great for a silent mod. Others say that the noise is high, annoying in an otherwise silent room, and the pitch changes randomly. The voltage seems unstable, and audio is subject to interference.

"...have mentioned: these are noisy (RF) devices, so particularly audio is subject to interference...." Read more

"...Pros:- Extremely small- 2 +/- output pads- No noise-..." Read more

"...and they were getting way too hot, and there was a ton of noise on the output line..." Read more

"...seem stable enough for micro controller. It does make a funny noise when under ANY load... I think I can deal with it" Read more

43 customers mention12 positive31 negative

Customers find the adjustability of the transformer difficult and fragile. They also say the output voltage adjustment is too sensitive and difficult to use. Some customers report that the adjustment potentiometer is very small and sensitive.

"...As others have mentioned, adjusting voltage is a bit tedious and requires a small (tiny) screwdriver and it is somewhat hard to dial in, but it..." Read more

"...As others have written - it's HARD to adjust...." Read more

"...on your application but I do like the idea of being able to fine tune the output...." Read more

"...The tiny volt adjustment screw is extremely sensitive so a small turn can jump from 6 to 7 then turning the opposite direction and it jumps from 7..." Read more

Worked great in the beginning
5 Stars
Worked great in the beginning
It worked great when I tested one of them. So I permanently glued it to my setup. And now the potentiometer is not changing the voltage on 3 of them. I am pretty sure I didn’t turn it too far but who knows maybe I applied too much force. So just be gentle I guess. Giving it 1 star because the product was great when it worked. But didn’t even last a few seconds of adjustments.EDIT: I changed my mind. They are working really good now. Yeah the potentiometer can be finicky but it works. By trial and error you can get the right voltage. Just be careful to go really slow and gentle while changing voltage. Don’t push down too hard and turn slowly.
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Top reviews from the United States

Nabheet S Sandhu
5.0 out of 5 stars Worked great in the beginning
Reviewed in the United States on December 9, 2023
Verified Purchase
It worked great when I tested one of them. So I permanently glued it to my setup. And now the potentiometer is not changing the voltage on 3 of them. I am pretty sure I didn’t turn it too far but who knows maybe I applied too much force. So just be gentle I guess. Giving it 1 star because the product was great when it worked. But didn’t even last a few seconds of adjustments.

EDIT: I changed my mind. They are working really good now. Yeah the potentiometer can be finicky but it works. By trial and error you can get the right voltage. Just be careful to go really slow and gentle while changing voltage. Don’t push down too hard and turn slowly.
Customer image
Nabheet S Sandhu
5.0 out of 5 stars Worked great in the beginning
Reviewed in the United States on December 9, 2023
It worked great when I tested one of them. So I permanently glued it to my setup. And now the potentiometer is not changing the voltage on 3 of them. I am pretty sure I didn’t turn it too far but who knows maybe I applied too much force. So just be gentle I guess. Giving it 1 star because the product was great when it worked. But didn’t even last a few seconds of adjustments.

EDIT: I changed my mind. They are working really good now. Yeah the potentiometer can be finicky but it works. By trial and error you can get the right voltage. Just be careful to go really slow and gentle while changing voltage. Don’t push down too hard and turn slowly.
Images in this review
Customer image
One person found this helpful
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Amazon Customer
5.0 out of 5 stars Nice buck converters. A bit tricky to adjust the voltage, but stable after adjustment
Reviewed in the United States on May 5, 2023
Verified Purchase
Seems to work well even at low load if the input voltage is at least a few volts higher than the output voltage. I'm using with 12v input and 3.3 volts output. Very stable with almost no current draw when output is idle.
2 people found this helpful
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D. Kong
4.0 out of 5 stars Great function, puzzling form factor
Reviewed in the United States on March 23, 2023
Verified Purchase
The actual functionality of the product is really good. This is a high efficiency buck converter, good for actually pretty decent loads, and you get 6 of them. They're extremely easy to use and the build quality is good too, aside from the functional but impossibly cheap set screw.

The only bad thing is there are no mounting holes, no great way to secure this in any project you might be working on, and the through holes for in and out are irregularly spaced so it can't be used on a breadboard or a wire wrap board! Each pair of in/out pins have 0.1" standard spacing but their distance from one another is not on that grid so you'll never seat this board on to anything but a custom PCB! Baffling. Even worse because there are no other mount points.
4 people found this helpful
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JCoats
5.0 out of 5 stars Used on 24v 3d printer
Reviewed in the United States on December 4, 2023
Verified Purchase
I used 4 of these to swap the fans on my Ender 3 v2 and they worked out great! I also added one to a sunlu s1 heatbox from 24v dropped to roughly 14v where this little pcb has to live inside of a 55c degree chamber for the rest of its life. So far they are holding up after a few weeks!
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Garrett
5.0 out of 5 stars Very stable
Reviewed in the United States on July 28, 2023
Verified Purchase
I haven't tested much beyond setting the voltage and forgetting it. I used it to create in all-in-one module for adding bluetooth to an older car stereo and it also powers a wireless charger. It has been stable and consistent for over a month now.

I have read other reviews of input voltages exceeding the rating of the filter capacitor, so it's something to be wary of, but unfortunately there is no way to check the voltage rating of it so I cannot vouch for that.

Love it overall, great package size, efficient and a wonderful value. Good to have in the bin for later projects.
Customer image
Garrett
5.0 out of 5 stars Very stable
Reviewed in the United States on July 28, 2023
I haven't tested much beyond setting the voltage and forgetting it. I used it to create in all-in-one module for adding bluetooth to an older car stereo and it also powers a wireless charger. It has been stable and consistent for over a month now.

I have read other reviews of input voltages exceeding the rating of the filter capacitor, so it's something to be wary of, but unfortunately there is no way to check the voltage rating of it so I cannot vouch for that.

Love it overall, great package size, efficient and a wonderful value. Good to have in the bin for later projects.
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One person found this helpful
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Jerry S.
5.0 out of 5 stars Adjustable voltage
Reviewed in the United States on December 3, 2022
Verified Purchase
I’m an Escape Room owner and have used these many times to reduce 12vdc voltage to 9v, 6v, 4.5v to power different escape room technical props/puzzles. I’ve also used to replace battery operated Halloween props like blow mold pumpkins using a 12v power supply and knocking down the voltage to replace the need for batteries. Cat5 wire or speaker wire works well, in a pinch, to accomplish this.

As others have mentioned, adjusting voltage is a bit tedious and requires a small (tiny) screwdriver and it is somewhat hard to dial in, but it works with a little patience. Make sure your input power and polarity is correct or you will fire the circuit board. I tend to use a large heat shrink tube to enclose/protect the circuit board after hooking things up.
5 people found this helpful
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Matthew A Sabins
3.0 out of 5 stars A bit problematic
Reviewed in the United States on February 23, 2024
Verified Purchase
The boards are very tiny, and easily damaged. I had a circuit that was working using them that stopped working and ruined a bunch of components. Use with caution and care.
One person found this helpful
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Blake H.
5.0 out of 5 stars Works perfectly!
Reviewed in the United States on August 8, 2023
Verified Purchase
I got tired of replacing button cell batteries in a LevelMate Pro for the RV so I soldered a couple wires from a male USB (broken phone cord) to the input, then soldered the output to the battery terminals and turned the adjustment screw until it supplied about 3.5 volts! Wrapped it in electrical tape and the whole thing fit inside the housing! Super Happy!
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Top reviews from other countries

Craig Willis
5.0 out of 5 stars Cheap, easy, and efficient
Reviewed in Canada on August 11, 2022
Verified Purchase
I got these to power a raspberry pi on my 3d printer. it was really simple to set it to 5.3v out on 24v in and it gets warm but not to a concerning level. voltage seems steady.
Seems to be working great! cant wait to use the other 5 somewhere
One person found this helpful
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Achronyme
5.0 out of 5 stars Excellent product
Reviewed in Canada on July 6, 2023
Verified Purchase
As described. Works perfectly.
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Amazon Customer
4.0 out of 5 stars Not the smallest but it's okay
Reviewed in Canada on April 11, 2023
Verified Purchase
It had the right pin pitch for a breadboard and the pot could be adjusted to get the right output voltage.
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Amazon Customer
5.0 out of 5 stars Flexible, easy to use, and excellent value
Reviewed in Canada on July 16, 2021
Verified Purchase
This device is small and adjustable to any voltage within the range specified, not just the discrete voltages listed. ie you don't select a voltage from a finite set of choices, you adjust it to anything you want in the range. Once set, it doesn't matter what the input voltage is, so long as it's within the specified range. At 3A rated output, it's perfect for mobile application payloads (eg. on drones), instrumentation platforms, and so on to name a few. At the low cost these devices sell for, I'm going to buy another batch just to have them around for those last minute projects that need a great stable power supply.
One person found this helpful
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Curtis Murphy
5.0 out of 5 stars Does what it says.
Reviewed in Canada on July 11, 2022
Verified Purchase
I used this buck converter to convert a set of solar LED string lights to run off the 12v battery in my tent camper. I simply connected it to a spare 12v battery on my bench to set the output to 3.5v before shrink-wraping and installing it by splicing into the existing exterior light circuit on the trailer. I was concerned that a higher input voltage while charging the trailer battery may effect the output voltage but it does not. Steady 3.5v regardless of input voltage. I will report back on dependability and heat generation after I've run them for an extended time in a few weeks.
One person found this helpful
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