Editing My Experience With The 723

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'''Low Voltage Supply:'''
 
'''Low Voltage Supply:'''
  
When I began experimenting with embedded processors, I found that many needed supplies in the 3V to 4V range.  By this time I had become fairly adept at using the 723 and since I had some still, I decided to use one, rather than investing in a fixed low voltage regulator. Here is the schematic:[[Pos_723_PNP_Reg.jpg]] I went with a positive output using an external PNP transistor.  Again, I added a trimmer pot, so I can adjust from around 2.75V to 4.25V.  This little board (the transistor has a TO92 package) measures only 1" x 2" and has a power on LED indicator, and two–2-pole screw terminal blocks.  It has been very handy.
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When I began experimenting with embedded processors, I found that many needed supplies in the 3V to 4V range.  By this time I had become fairly adept at using the 723 and since I had some still, I decided to use one, rather than investing in a fixed low voltage regulator.  I went with a positive output using an external PNP transistor.  Again, I added a trimmer pot, so I can adjust from around 2.75V to 4.25V.  This little board (the transistor has a TO92 package) measures only 1" x 2" and has a power on LED indicator, and two–2-pole screw terminal blocks.  It has been very handy.
  
  

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