💡 5V Regulator - DROK 5pcs Mini Voltage Reducer DC 4.5-24V 12V 24V Step Down to 5V Buck Converter Board 3A Power Supply Module Review

I have found that these DC/DC converters have poor load regulation which makes them unsuitable for my project. I tried using the device in both adjustable and fixed output voltage modes. In fixed mode, the no-load output voltage was 4.8 volts when set to 5 volts, and quickly dropped below 4 when a load of less than 1 amp was applied. In variable voltage mode I was able to get an open circuit voltage of 5 volts, but it still dropped quickly when the load was applied. On the plus side, they have…

I don't mind the idea of cutting the track to cut the potentiometer, but everything is too small (and would it be nice to leave the potentiometer to trim the adjustment?). It would be better to have pads to enable or disable the potentiometer, or even better a jumper (or some kind of DIP switch configuration). Also, everything is too small for my old eyes and hands. I soldered a 5v pad and thought I cut off the potentiometer trace and got about 3v. This varied to about 4 volts with a pot (so…

The performance of this small device is not very high. As others have reported there is an initial ringing component around 100-150MHz and then a periodic ringing which I have not measured - all observed on my Agilent 54622D mixed signal oscilloscope. Voltage regulation under load is also relatively poor. With an input voltage of 13.8V I adjust the potentiometer with no load to an output voltage of 4.99V. With a 1.0A load (Kikusui electronic load), the output voltage dropped to 4.85V. With a…

As mentioned by several reviewers, I couldn't get the fixed tension to work on the first try. So I decided not to give myself a headache and just use them as a variable current source. I was able to fine-tune the outputs as needed and the output seems to remain stable. I haven't used them long enough to vouch for their long-term accuracy, but for now they provide an inexpensive solution for some antique restoration projects. I just converted an NLS MS-15 scope and these down converters worked…

Cutting that tiny mark on the back of the PCB was horrible. It's too small even for a razor and a magnifying glass. Why, why did they do it like this? It would be easier to solder adjustable pads. This stupid design ruins a great idea. In fact, I messed up two of them simply by cutting the track. When they work, they're pretty good. I always put 100uF in and 47uF and 0.1uF out. If you do this you will have enough pure power to run small tasks like arduinos etc. Whatever you do, make sure you…

I bought this voltage reducer to power single wire devices in a project I am doing. I particularly liked the "Enable" function, as I wanted to remotely disable the single-wire bus. Works perfectly. I had some trouble with the first one because I wanted a fixed 3.3v output. When I tried to cut the trace and solder the 3.3v traces together my eyes just couldn't take the modification. So I used a potentiometer to manually adjust the voltage. Soldering the wire to the input and output pins is…

This thing is small, surprisingly and impressively small, great for incorporating into a project. It's small enough to only use 4 pins (2.54mm spacing) to hold it in place. The overall design is great to incorporate into a project if you're comfortable with an adjustable knob. I tried cutting the path indicated by 3 of 5 but couldn't break the continuity between the sides of the pot areas, one of the 3 I accidentally destroyed in the process. Using the simple POT setup path it was fairly easy…

You bumbling reviewers need to stop giving 5 star ratings to products with obvious flaws or the manufacturers will NEVER FIX ANYTHING. based on the MP2315 regulator which is actually a fairly efficient synchronous design, albeit a bit noisy. As with most regulators there is some roll off under load so most are fairly normal. The pin order corresponds to another set of fairly well-known controls, so there's nothing wrong with that. The PCB size is about 20mm x 10.7mm. Congratulations that the…