Goal is to get 5V and 3.3 V output by the use of a buck/boost converter. Important is to use a converter instead of an LDO for heat reasons.
I want to draw minimum above 0.8A, preferably 1-1.2A at the 5V and potentially around 0.4-0.6A at the 3.3. My input will be aything above 7.4V and below 18V.
I want to add a buck converter to a circuit to reduce the voltage to 5V and then to 3.3V. I came accross this buck/boost converter (TPS63060DSCR) which provides enough current and has a suitable Vin range for my application. Here is the schematic according to the datasheet which outputs 5V with the implicitly calculated resistors for any given Vin.
and here's the datasheet: tps63060 datasheet
At the place of the cut, I also realised I could just use an LDO that converts the 5V to 3.3V since this is not a big step down so it will probably not overheat if i pick a powerful enough regulator, in addition to the fact that it will probably also not draw so much current.