Yobett New 2PCS Lm2596 Add Heat Sink DC-DC Buck Adjustable Step Down Power Supply Module Converter Output 1.23v-30v
|Sale:||$7.98 & FREE Shipping on orders over $35. Details|
|You Save:||$5.01 (39%)|
Fulfillment by Amazon (FBA) is a service we offer sellers that lets them store their products in Amazon's fulfillment centers, and we directly pack, ship, and provide customer service for these products. Something we hope you'll especially enjoy: FBA items qualify for FREE Shipping and .
If you're a seller, Fulfillment by Amazon can help you increase your sales. We invite you to learn more about Fulfillment by Amazon .
- Enter your model number to make sure this fits.
- Brand New with High Quality
- LM2596 DC-DC Buck Converter Step Down Module
- 2pcs with Reasonable Price
- Input: DC 4V to 35V (input voltage must be higher than the output voltage to 1.5v above can not boost)
- Output: DC 1.23V to 30V voltage continuously adjustable, high-efficiency maximum output current of 3A
Frequently bought together
Customers who bought this item also bought
2pcs LM2596 Adjustable Power Module
Condition:100% Brand New with High Quality
Module property:Non-isolation buck
Rectification mode:Non-synchronous rectification
Type: LM2596 Adjustable Power Supply Module
Input Voltage:DC 4V-35V
Output Voltage:DC 1.23V-30V
Work temperature:-40℃- +85℃
Quantity:2pcs as A Set
Note:Please make sure all of the "IN-" "IN+" "OUT-" "OUT+" marks are inserted Rightly,otherwise the modole will be damaged.
Top Customer Reviews
In addition to saving me money, these are so much more efficient and have a more consistent output voltage than a linear regulator. Linear regulators waste so much power just turning it into heat, which can be a real problem because they require bulky heat sinks and even still they can get hot enough to burn your fingers, melt plastic and just simply be a pain in the butt.
These buck converters don't heat up at all with a 600mA load, and barely get warm to the touch with a 1500mA load. You'll never have to worry about heat issues with these things. The output voltage is very stable, and DOES NOT DROP AT ALL (seriously) as the load increases.
Voltage and Current were measured with a FLUKE multimeter which is less than one year old:
No Load: Vo = 6.80 V
500 mA Load: Vo = 6.80 V
1000 mA Load: Vo = 6.79 V
1500 mA Load : Vo = 6.78 V
Finally, these are very small (a fraction of the size of a 3A linear regulator board) so they can easily fit into whatever device you are planning on using it in. The PCB design is clean and simple, and its connections are clearly labeled.
My only caution is that If you are planning on using these in a "set-and-forget" application which is sensitive to over/under voltage, I highly recommend that you put some hot glue over the trim pot screw after you set the output voltage. I say this because it is all to easy to accidentally bump the trim screw and mess up the output voltage set point.
This order came straight from China, so it took two weeks to fulfill, but the price was good.
I will use another one in the next project. Those regulators are tiny, yet efficient, so they do not dissipate too much heat.
First, don't let your voltage get low because rather than cutting off like you might hope they will simply keep trying to supply power at below the voltage level. This could damage some electronics, so use some sort of limiter (like a CJKIT-20462) to protect from low voltage if it matters for your application. (and the life of your battery!)
Second, they will audibly oscillate when drawing more than about 1A from a higher voltage source. You can hear the high pitched whine if you have sensitive ears. This annoying feature can be mitigated by lowering the input voltage.
* Third, and critical if you are operating on battery power: if your voltage source is substantially higher than the output voltage, this may burn a lot of amps even when the load draws little to nothing. My setup involves converting 25-28V down to 12.25V and sometimes (but not always) by my measurement this wastes 1.5A in the converter, with the actual load drawing only 50mA. Bringing the voltage down to 20V or lower will drastically curtail this waste.
So you might think to wire these into a 24V system in series to deal with that issue, but they don't seem to tolerate being wired in series with each other. Only one or the other seems to work at any given time in my installation.
I have used them in 2 applications. The second application worked great. I had a small power supply fail on an electronic component (33VDC in 5VDC out). I was able to install this in place to verify the failure, and now have it running as a replacement 33VDC in 5VDC out, just as the original, both were rated for the 3A, though I doubt it even pulls 1A.
The first application I had was not as successful. I was trying to get a steady 5VDC output in an automotive application. The issue was that since an automotive battery varies the voltage based on vehicle conditions (12.4V to 14.4V). the output voltage would vary as well I adjusted it up so it would not drop below 5V, but at higher battery voltages the output would exceed 5.8V. I eventually opted for a non adjustable buck converter found here
to get a constant 5V at all input voltages.