Hi,
I need to double my input voltage of 5V to get ~10V, < 50 mA current draw. Seems like as switched-capacitor charge pump is the easiest route.
I'm thinking of using PWM outputs from my uC to drive an analog mux to create the charge pump, but I see most analog switches/mux'es are limited to +/- 6V inputs.
Any suggestions on an inexpensive approach to implementing the charge- pump?
Regards, John.
P.S.
Joerg, if you're reading this, thanks for answering my questions on the crystal oscillator, I went to thank you but my ISP didn't carry the article any more.