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ADP5073 SLEW pin


The ADP5073 datasheet states that the SLEW pin can be set to fast, normal or slow. The noise will be lowered by slowing down the slew rate, but the efficiency will decrease.

My question is: How much lower will the efficiency be when setting SLEW to fast compared to settings SLEW to slow? I know that there's no simple answer to this but do you have any idea?

In my application I convert +5 V to -2.3 V. Switching frequency is 1.2 MHz and output current is 110 mA.

Will the efficiency go down by a 5 % or will it go down by 25 %?

Regards, Jonas

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