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Andy Peters
08/12/13 14:23
Read: 970 times
Tucson, Az

#189994 - USB 5V
Responding to: Erik Malund's previous message
Erik Malund said:
I see a definite advantahe of 5V Vcc capable chips for USB powered apps, but what else but ludditeism requires 5V Vcc

I've done a couple of USB designs, and none of the logic requires 5V. The bus supply is always regulated down to 3.3V. Some (most?) USB micros these days have an onboard regulator which supplies 3.3V from the bus supply.


List of 9 messages in thread
New SiLabs F85x/6x      Jan Waclawek      08/01/13 03:42      
   A good addition       Jim Granville      08/01/13 04:53      
      you may, as well, get used to 3V3      Erik Malund      08/01/13 08:42      
         1.8-5.5V :: is the new game in town.      Jim Granville      08/01/13 14:10      
            if i need a 3V3 chip ....      Erik Malund      08/01/13 19:48      
               Try Logic level power FETS        Jim Granville      08/01/13 20:30      
               USB 5V      Andy Peters      08/12/13 14:23      
                  .. or multiple onboard regulators      Jim Granville      08/12/13 19:15      
                     lots of chips these days have that      Erik Malund      08/13/13 08:43      

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