[Lab] Voltage Regulators

[Ken McKinnon]

Nice find, that is a pretty elegant solution at a pretty decent price.

Ken

On 2014-01-25 4:18 PM, Micro wrote:
> I had that problem recently and found an elegant solution. There's a tiny switching regulator module that replaces the 7805. It delivers up 1.5 amps and doesn't get warm regardless of the input voltage. It's only $5.15 and available at Digikey. I have a spare if you don't want to place an order. The Digikey part number is 811-2196-5-ND.
>
> Guy
>
>
> --------------------------------------------
> On Sat, 1/25/14, Justin Slootsky <justin at slootsky.org> wrote:
>
>   Subject: [Lab] Voltage Regulators
>   To: lab at artengine.ca
>   Received: Saturday, January 25, 2014, 10:17 AM
>   
>   I'm new to electronics, so newbie
>   simple answers are quite possibly appropriate.
>   
>   I have a project that needs 12V for LEDs and 5V to power the
>   BeagleBone that is driving the LEDs.
>   
>   I'm using a LM7805C to regulate the voltage down from 12V to
>   5V, and it is functioning well, but it is getting hot.
>   
>   I added a binder clip to act as a heat sync, but still,
>   depending on where I'm measuring, I can get a temperature
>   reading of up to 80C.
>   
>   My final plan for this would be to encase the
>   wiring/circuitboard in some sort of container, so that type
>   of temperature is not going to be suitable.
>   
>   I have read that there are other types of voltage regulators
>   (switching regulator?) that can be used in scenarios like
>   this, but I'm not sure where to source just one of
>   those.  The only local walk in source for electronics
>   that I've found is Active Electronics, and they don't seem
>   to have much (and much of what they have seems expensive).
>   
>   Is there anywhere local that I can find a voltage regulator
>   that is going to run cooler than this one?
>   
>   [ I'm still at breadboard stage, so it doesn't need to be
>   the same formfactor as the LM7805C ]
>   
>   Thanks.
>   
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