I wish to control the switching on and off of several LEDs as indicated in the following figure:
The bases of transistors and the ON/OFF pin of the LDO will be controlled from a microcontroller.
My question is:
Can a periodic signal be applied to the ON/OFF pin of the LDO and it works correctly? (Possibly from 1 kHz to 2 Khz)
Note that the schematic represents the first row of a matrix of several LEDs. That is to say that for each row there will be an LDO.