I'm looking for a way to convert DC 12v to 3.3v for a new ESP project. All components will be added to a PCB.
The module will be placed in my car, so the input voltage will be 12v.
I don't have much knowledge about power requirements for electronics, so I did some reading.
At first I looked into the AMS1117 which is quite frequently being used with ESPs, but some people pointed out that it's not a good choice when the input voltage is much higher than the output voltage. It would waste a lot of power and create a lot of heat.
A Buck converter would be much better it seems, so I looked around and found two candidates.
One of them is the [AP1509-33](https://nl.mouser.com/datasheet/2/115/diodes inc._ap1509-1163839.pdf) which is very small and SMD. I like that a lot, but it does require an additional heat sink and capacitors.
As I want to keep the PCB as simple as possible the other option might be better. It's the TSR 1-2433.
Can anyone recommend either of these two, or maybe some other DC converter?
Also would I need additional capacitors on the input and output side of the converter?