Thanks, I never knew why. All I knew is whenever I need a buck converter in my DIY, novice PCBs, I just toss in an off-the-shelf preassembled one, with a small

Thanks, I never knew why. All I knew is whenever I need a buck converter in my DIY, novice PCBs, I just toss in an off-the-shelf preassembled one, with a small LDO on my actual PCB to drop the last bit and smooth it out.