Power management

Voltage regulators


Generally indicated with a code like L78XXCV, where XX indicated the Vout voltage.

An important value to look at in the datasheet is the drop voltage that indicates what is the minimum difference between the Vin voltage and the Vout in order to maintain a stable voltage.

voltage regulator schematic

  • Video about linear voltage regulators
  • Tutorial sparkfun
  • http://www.slideshare.net/niiraz/voltage-regulator-29002693
  • http://datasheet.octopart.com/L7805CV-STMicroelectronics-datasheet-7264666.pdf
  • Buck converter vs. linear voltage regulator - practical comparison youtube



Steps up the voltage


Step down the voltage

Battery charger