There's a pretty wide range of stuff available - the main factor being current. At low currents a charge pump is likely to be the simplest but at more than a few mA you are in the realm of inductive boost converters. These will normally need at least an inductor and a couple of caps and probably a couple of resistors as well. At high currents greater than a few amps or so the inductor is going to need to be switched by a MOSFET, adding a bit more complexity and at higher currents again you'll need a MOSFET driver as well. Older chips operate at lower frequencies and need larger inductors and probably more support components, new ones will operate in the MHz range and the inductors are quite small (physically & in value). Higher frequency operation can lead to more noise issues if it's an RF product but even at lower frequencies you have to do things sensibly - follow the data sheet recommendations. Older chips also are probably going to be less efficient although this is countered at the higher frequency of the new ones. A good conversion efficiency would be in the 85-90% region at the operating power level. For the larger power levels you do need a way to get rid of that wasted heat. A modular approach may suit as these are available quite cheaply from Aliexpress/eBay etc or a bit more costly from Digikey/Mouser. Effectively you put these in position & forget about them. I can't remember the type numbers as I mainly use buck converters but TI, Linear Tech, Rohm etc... all provide suitable parts. Some will send free samples & provide evaluation boards it you're looking at quantity manufacture . RP On 18 October 2017 at 05:45, Jason White wrote: > Would a small board mount power supply module/brick work for your > application? That wouldn't require a lot of components. > > On Tuesday, October 17, 2017, wrote: > > > > Hi, > > > is there a wonder-IC that will take 3.3V in input and give 5.0V in > > output well > > > filtered (similar to a linear voltage regulator output), and that > > doesn't require > > > many components? > > > > http://www.linear.com/products/inductorless_(charge_ > > pump)_dc%7Cdc_converters > > > > > > > > -- > > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > > View/change your membership options at > > http://mailman.mit.edu/mailman/listinfo/piclist > > > > > -- > Jason White > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .