Powering a camera trigger servo with Pixhawk 4 Power Module (PM07)

Hi,

I have the Holybro Pixhawk 4 Power Module:
http://www.holybro.com/product/pixhawk-4-power-module-pm07/

I’m wondering if I can take the 5V out from the ADC 6V6 to power a servo for a camera trigger.

Could this cause a problem with the power of the flightboard?
Or is mandatory to use an UBEC?

Thank you.