Wiring And Schematic

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L200 VOLTAGE REGULATOR SOFT START MECHANISM ELECTRONIC DIAGRAM

The Vo follows the voltage at pin 2 at less than 0.45 V since a voltage of more than 0.45 V cannot be produced between pins 5 and pins 2.

Constant current ic is charge capacitor C, where

ic= Vsc/R

After the time ton, the output reaches it’s nominal value

Vo-Vsc = (Ic.ton)/C

ton=C.[(Vo-0.45)/0.45].R = CVoR/0.45