[Lab] Voltage Regulators

[Henri Kuschkowitz]

Really useful info. Thanks for sharing.

Henri

> On Jan 25, 2014, at 17:09, Ken McKinnon <klmckinnon at rogers.com> wrote:
> 
> 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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