step down converter

Discussion in 'General Electronics Chat' started by nandax, Mar 17, 2009.

  1. nandax

    Thread Starter Member

    Nov 20, 2008
    12
    0
    I'd like to use MC34063A as step down converter from 9 V to 3V
    my question is , how can I determine the output current? is there a formula for that? can somebody tell me

     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    The load that is fed by the 3 volt supply will determine the current. If it is resistive, then Ohm's law works - I = E/R. Current equals the voltage divided by the resistance.

    If the load is active, the spec sheet for that device should give you the information.
     
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