24V LDO Regulator

Discussion in 'General Electronics Chat' started by tracecom, Jul 16, 2012.

  1. tracecom

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    I am looking for a LDO 24V regulator (1 A) and found an NTE1956, but Mouser only has two, and Digikey doesn't carry them. Is there a more common part available? I have about 1.3 V of headroom.
     
  2. bertus

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  3. tracecom

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  4. bertus

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  5. Papabravo

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    Stand by one
    I give up
     
    Last edited: Jul 16, 2012
  6. bountyhunter

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    Check LM2941
     
  7. tracecom

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    Unless I am overlooking something, the LM2941 only goes up to 20V.
     
  8. Papabravo

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    That's why I gave up. I had a hard time finding an adjustable LDO that would supply 1 A and had an input voltage in excess of 24 volts. It seems to be a tall order. The Fairchild and Siemmens parts that Bertus found look reasonable, but those companies are not the first that come to mind for LDO regulators.
     
  9. tracecom

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    It doesn't have to be adjustable. I just want a regulated 24V output from a 25.3VDC input. The datasheet for the LM7824 says the dropout voltage is 2V, but I wonder if it might work anyway.
     
  10. Papabravo

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    I think it has to be adjustable because most vendors don't seem to be making fixed output 24V regulators. Never mind the LDO variety. The 7824 is a very old part, but it just might work for you. Also you should know that most fixed output regulators can be turned into an adjustable one.
     
  11. bountyhunter

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    Wierd. The input can go up to 26V, but the output can only go to 20V?
     
  12. bountyhunter

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    You could build a 24V LDO with this controller as long as the input voltage doesn't go above 26V.

    http://www.ti.com/lit/ds/symlink/lp2975.pdf
     
  13. Papabravo

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    Can the OP handle the SMT package. I was looking for a 5-lead TO-220.
     
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