Using PWM to Trigger VRegs

[sall]

I would like to use a PWM to trigger multiple sharp 12V regulators. The PWM outputs dual brightness one for tail lights and one for brakes/indicators. My idea here is to use NPN transistor to switch the on/off pin 4 on the vreg to high to have the output ON. This should work, no?

 

[Resqueline]

Unless you want the output to be PWM regulated too you'll have to use a diode & a small capacitor to make a clean control signal.

 

[sall]

Yes, the output must be PWM'd. It is going to be supplying multiple LED arrays in the middle panel of my Aurora's tail light section. Will have tails/brake function.

This is one 32 LED array in the panel without lenticular diffuser. Just to give an idea of what this is for..