PQ4570 PG current carrying capacity

DC-DC Power Converters
1

Hello MPS community,
Concerning the PQ4570 PG, the Power Good Open Drain pin and here the current capability.
Is it possible to drain 100mA with a residual voltage of 100mV on this pin?
Thank you for your attention

2

Hello joachim.willkens,

I am a little confused about your question, could you clarify it? Are you trying to use PG as a current source? Or are you asking about much current can the PG pin handle?

Regards,
Vinh Tran

3

Thank you for your response Vinh Tran,
I’m asking about how much current the PG pin can handle. My impression is that there is an open drain FET. I want to handle some other PSU units depending on the PG release. with intention to minimize allocated HW, some 10mA should be handelt by the power good FET.
Joachim

4

Hello joachim.wilkens,

100mA will be too much for the device. At the most, 10mA.

Regards,
Vinh Tran