Switching regulators
Some general purpose switching regulators that are often needed when prototyping systems with battery power for example. Input voltages from 4V to 35V are supported and the output can be configured from 1.2V to 35V. There is also a place for a transient voltage suppressor at the input.
A small 1A buck regulator with optional input capacitor:
PCB waiting for a higher current version:
Buck-boost regulator: