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LP8758-E0 Max duty

K. Sasaki14
Guru 10200 points
Other Parts Discussed in Thread: LP8758-E0

Could you let me know the LP8758-E0 Max duty value?
We would like to judge the output voltage upper limit.

Best Regards,
Kohei Sasaki

  • 0
    TI__Prodigy 250 points

    Hi Sasaki,

    Duty cycle of the LP8758-E0 is not limited. It can go up to 100% if input voltage = output voltage.

    This is not correct. There is definitely a 0.7V drop out and the PWM duty cycle does not go to 100%. It is however capable of 4A load 100% of the time if the heat sink is designed properly, but this is not the same thing.
      Set your input to >3.7V to remain in regulation.