As you can see below the boost converter circuit uses only 4 parts, 2 capacitors, one coil and the main part the LTC3525L-3 IC from Linear Technology. The IC is a high efficiency synchronous step-up ...

Transform your product pages with embeddable schematic, ... As you can see is pretty simple to have a 3.3-Volt power source that cost around $2 if you use the MCP1640 IC or $6 with the LTC3400 IC. ...