LDO give same quantity as request , until maximum allowed for him. It's work as constant voltage source, not constant current. You must care about only three things :
LDO output voltage equal VCC of controller
LDO maximum current greater then maximum
required for controller
LDO dissipated power :
when you are using LDO be sure, that
thermal conditions is safety, because dissipated power on LDO is : (Vi-Vout)*Imax .
Usually LDO mounting on PCB square pad with
width/length 1cmx1cm for 1Wt of dissipated power.