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Farshid Jafari Harandi
01/12/06 22:34
Read: 1072 times
Sweden
Gothenburg


 
#107234 - Something to dissipate .07 to 1.2 V
I need Something that could dissipate 0.7 to 1.2 Volt but precisely. I could supply the Mixed circuit by 2.7 to 3.3V.

- I can use Diodes but since this would supply a Digital and Analog circuit which their consumption could vary between 10 to 200 mA this would lead to a very unstabilized supply.

- I can use a Simple Linear regulator like LM317 but this also wouldn't work good cause LM317 will need at least 1.7V differential between the In/Out.

- I can use a LDO , But they are a little pricey and 3.3V's are hard to find.

This should be operable by a NPN a transistor I think. What are your suggestions ?

Thanks in advance,

Farshid


List of 13 messages in thread
TopicAuthorDate
Something to dissipate .07 to 1.2 V      Farshid Jafari Harandi      01/12/06 22:34      
   Battery 3V      Kalpak Dabir      01/13/06 00:21      
      No      Farshid Jafari Harandi      01/13/06 09:09      
   since you show analog powered by the low      Erik Malund      01/13/06 06:43      
      Drop from input, not output      Joseph Hebert      01/13/06 08:33      
      dropping .7/.8/.9/1/1.1/1.2 V wil work      Farshid Jafari Harandi      01/13/06 09:12      
         what analog at 3V3?      Erik Malund      01/13/06 09:15      
            Yes      Farshid Jafari Harandi      01/13/06 09:19      
               why run the LM324 off 3V3, not 4.x      Erik Malund      01/13/06 09:32      
                  Schematic ?      Farshid Jafari Harandi      01/13/06 10:39      
                     3.3V LDO      Farshid Jafari Harandi      01/14/06 11:42      
                        Manufacturers' websites      Kai Klaas      01/14/06 18:19      
                           Solved the problem      Farshid Jafari Harandi      01/16/06 02:45      

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