I am using the MP4569 to down convert from nominal-48v (42 to 58) to 12v and 24v. I am unsure what to do with the BIAS pin. I am leaning toward leaving it unconnected, or at least bypass with a capacitor. The datasheet talks about connecting it to Vout at lower Vout values, but not with high Vout values.
Do I need to create another supply to power this input? The datasheet says nothing about leaving it unconnected.
Hi John,
It is recommended to connect BIAS to the regulated output voltage when it is in the range
of 2.9V to 5.5V. When the output voltage is out of this range, an external supply (>2.9V, ideally >4.5V) can be used to power BIAS.
Please refer to page 10 of the datasheet for more information.
Best Regards,
Yu