PW-D Control Buck Converter 6-24V to 5V 1.5A Step-Down Regulator Module Power Inverter Volt Stabilizer

Bought these to use one as a charging source for a device that uses USB to charge its internal battery. I was concerned about the voltage regulation as the charging current changed. NO problem. With 12v in, the output was 5.10v unloaded, 5.08v at 150mA, and 5.04v at 1.0A. Running at 1A the unit temperature rose 40 degrees C over ambient. Running at 150mA load the device was 75% efficient. With no load, the unit drew 0.2mA on the input. All four of mine tested fine. BTW, the larger red input connector will accept Dupont connectors (with a bit of coercion). My USB device is very happy with the 5v from these. I'm happy, too.

Great size! Fits well behind the dome lights (what's that?) in a vehicle. I mount my dash cam high on the windshield for an excellent view. Dash cam has saved me a lot of money. This dc-dc converter has worked perfectly for three months.

These 6-24VDC to 5 VDC tiny (approx 1/4" x 3/4") voltage converters work as advertised/expected. Questions to the seller were answered within one day. One has to depend on the seller and comments to insure that red leads are 'positive' and black leads are 'negative'. The units are black heat shrink covered. There is no INPUT/OUTPUT labeling. The seller and another comment confirmed the large red connector is the INPUT side (battery intended) and the small white JST style connector is the output. Important to know as I did not use the connectors in my application. Without any application information - I proceeded to feed the input with 12-18 VAC using a full wave bridge rectifier and a 220 uF 50 VDC electrolytic filter capacitor. This worked fine - I had no way to know what input filtering was in the design - so the addition of the 220 uF cap does not hurt anything. The 4 star rating is due to one of the 4 pcs dying after about 10 min of operation - shorting the AC power supply (current limited protected). Being in electronics all my career - I understand infant failure - cost is so low - I did not need all 4 at this time - it was not worth asking for a replacement.

Used mine to enable the fuse lights on my Victron Distributor. Works great.

I bought these to rig up a cable to run my Rove 4K dash cam from my rear-view mirror. 12V power source. The Rove specifies 5V at 1.5A which is at the limit of these units per the description. The wires are so small on these things that it was quite tedious to build up the cable and solder everything together and protect everything with heat shrink tubing. I was quite proud of my work. I double checked that it worked by attaching to a 12V power supply and measuring the output. It did output 5V. However, when trying to run the dash cam, no luck. Turns out that some cams need to have the USB interface (via IC circuit) properly installed otherwise they will shut down. I replaced this with the guts from a cigarette lighter adapter and all worked fine. Saving these for another project.

I'm using these to step down 12V to the 5V required by the ESP32 board I'm using. These buck converters are small and protected by both heat shrink tubing and epoxy the the wire lead ends. I would have preferred bare boards, but these are easy to work with.The buck converter is based on the MP2315, which is an older chip, but still perfectly good.

Quality control is poor for the batch I received. Test before installing. 4 out of 5 failed or gave a value lower than expected. Size of product is excellent for tight applications. Just order two to make sure you get one that works.

I only have used 1 so far but it worked fine. I used it to power a DMX lighting wireless receiver from a 12V battery since it needed 5V. They are quite small.