Other Parts Discussed in Thread: LP5907, TPS7B86-Q1,
There is a good new that we DIN LP5907QMFX-3.3Q1
And there have one thing need your support!
Please help check this SCH, THX
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Are they asking us to provide power sequencing calculations for this whole power section? It looks like they have already added RC delays and used an NR/SS pin to set delays in the power sequencing. They have also not provided any timing requirements so it seems that what is important is the order of the power sequencing and not necessarily the timing of the sequencing. Is that correct?
I want to point out again that using an inductor at the output of the TPS7B86-Q1 is not a good idea. I would like to know the reason they want it there.
Can you please also provide the load current and ambient temperature as I previously asked?
Got it , I will ask customer why they using an inductor at the output of the TPS7B86-Q1 !
The load current of LP5907QMFX-3.3Q1 is about 10mA,THX
I'm calculating the startup time, can you help me confirm whether my calculation is correct?
LP5907-Q1 after get Vcc5V will need 80uS to give VLDO3V3