1
\$\begingroup\$

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?

\$\endgroup\$
1
  • \$\begingroup\$ Just an update. I found a triple buck switching regulator TI652510 JUst curious what the footprint size will be. \$\endgroup\$
    – user2967920
    Jan 7, 2015 at 14:06

1 Answer 1

Reset to default
0
\$\begingroup\$

LTC3633 Does the job for +5v and +3.3v Voltage Generation.

What I learnt from enough RnD is Switching Supply for Production Level Designs and Linear Regulation for Development and Testing (Fast Prototyping Environments where u dont need to worry much about Efficiency).

I am looking into doing a digital control for the outputs now via the LTC1157 where the Vcc's of the Modules can be controlled by a digital 3.3v tolerant pin.

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.