Blars
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Re: Power regulation

Mon Aug 29, 2011 3:46 pm

Is the on-board power regulator(s) going to be switching or not? Looking at the pictures of the alpha version, I see what appears to be a 3-pin regulator and don't see an inductor, so I'm guessing non-switching.

So for low-power applications we will need an external switching regulator, and I'd worry about heat disipation if the board was given 20v.

ShiftPlusOne
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
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Re: Power regulation

Mon Aug 29, 2011 3:49 pm

I think that's just an alpha board thing. They have mentioned they'll be using an SMPS to step the voltage down to 5V and then another to 3.3V.

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liz
Raspberry Pi Foundation Employee & Forum Moderator
Raspberry Pi Foundation Employee & Forum Moderator
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Re: Power regulation

Mon Aug 29, 2011 3:59 pm

ShiftPlusOne is right - what you see on the alpha board isn't necessarily a good indicator of what you'll see in the final version!
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