power supply for RF modules

hello
i have 2.4GHz Video PAL & audio RF modules 16 dB. RX and TX.
need 5V.
how can i supply it?
is it necessary to feed them with a linear supply ? 7805 heats so much.

can we supply it with a switching power supply? (and which is recommended )

thank you.

http://www.linear.com/pc/downloadDoc...55,P1185,D4383

Dear,

Check this topic at EDA Board:

https://www.edaboard.com/ftopic172406.html

Good Luck.

Why don't use a pass power transistor ? That transistor will help to the regulator to share current..