Because of that feedback, you get to use your load as the lower half of the divider, so the total current drawn from the source is the load current plus a few microamps for the regulator&#x27;s internals.<p>In the passive voltage divider circuit, if the load varies its current draw, you have to have a resistor in parallel with the load so that the total current through both the load and the resistor doesn&#x27;t vary significantly (where &quot;significant&quot; is derived from your tolerance for voltage variation).