I’m looking for a small and reliable buck converter that outputs 5V (doesn’t need to be adjustable) and can take up to 12S as input. It has to be able to output as least 200 mA.
Does anybody know about one? Or can anyone design one that could be manufactured with the JLCPCB (or similar) SMT service?
Thanks everyone for links. I’m looking for as small as possible. No need for high current rating. I currently have a few that look very similar to what @BluPenguin has linked. I was hoping for something flatter though. It must be doable. My FlexiBMS has a smaller footprint than that one buck converter and it does a whole lot more things than just output 5V.
Been looking into these as well since I was wanting to design a lighting system based on arduino and would need 5V and 12V power. Think the 5V would need to output 3-4A since I’ll be running a strip of WS2813 RGBs underneath as well as the arduino from it.
@janpom
Use a discrete power rated resistor for the “Resr” designator in the design on the front of the datasheet, unless you opt to use an electrolytic capacitor for your output capacitor.
Also, LCSC does not have the LM5166X, the fixed 5V output version, you’ll either have to get the part from somewhere else, or add in a resistor divider for the feedback circuit.
Exposed pads can be soldered using a standard soldering iron, the trick is to have the pad on the PCB exposed on both sides with a small hole in the center of the pad, you solder it from underneath. What I do is I tack on each of the pins first, then flip the pcb over and solder the ground pad.
EDIT: nevermind, just realized the package is no-leads cancer, I would recommend using the LM5163 instead.