I am designing a Power Circuitry for a Application that needs to feed 1x Beaglebone Black (5v), 1x Device with 600mA (5v), and 2x XBeePro Modules (3.3v)
via a 2S (7.4v 1Ah LiPo) Pack.
The Plan of action was to use 1x 5v@3A Switching Regulator to give power to the BeagleBone, the Other device and an LM1117 which will give 3.3v to the XBees. Is this approach Correct?
While choosing a DC DC Buck Rectifier, of how much importance does the switching frequency play?
Can i use a MAX16909 for my Application?
Is there any other Switching Regulator for Battery Supplies that i can use? The power source will be a 2S Lipo Battery rated for 1Ah. The MAX16909 takes input from 3.5V to 36V. Should i look for an IC that takes input from 5v-12v for efficiency?