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LM833-N: LM833-N min power supply

Part Number: LM833-N
Other Parts Discussed in Thread: LM833, LMP7732, LME49721

Hi Team,

Could you help double check what's the min single power supply for LM833-N ?

Is it 5V ?

It's not quite clear in spec. My customer would like to use 3.3V for supply, and need to double check.

Thanks.

  • Hi Rocson,

    You're right, 5V is the minimum supply voltage. This device may not be able to operate at lower supply voltage and it would also be out of spec.

    Best regards,
    -Ivan Salazar
    Audio Applications Engineer - Low Power Audio and Actuators
  • Hi Rocson,

    Note that the "vs Supply Voltage" graphs are ±5V (split supply). This has tripped-up others, too.

    So the Supply Voltage vs Supply Current graphs starts at ±5V, or +10V.

    This device was originally targeted at Automotive and Consumer audio.

    Automotive radios generally used a +8V supply, which is why they left the dotted line below ±5V.

    I would not try to run it at +5V. The input voltage range precludes that...and it's non-op at +3.3V.

    There are many better low voltage audio amps, like the LME49721, LMP7732 and others.