Part Number: TPS2549-Q1
Other Parts Discussed in Thread: LMR14030-Q1, TPS25200-Q1, TPS25200, TPS2549, LMR14030
Hi,
We got a question from the customer about TPS2549-Q1.
Could you help us?
[Question]
They are considering adding TPS25200-Q1 to their board because of overvoltage protectin. Are their any conserns for his usage? They are concerned loop stability of LMR14030-Q1 and TPS2549-Q1.
Best Regards,
tateo
Hi, Thank you for your quick reply.
1. TPS25200 is used to protect TPS2549 ?
-> Yes, TPS25200 is used to protect TPS2549-Q1 and USB output.
2. LMR14030 should always output 5V voltage, right ? will it output higher voltage ?
-> Basicaly LMR14030-Q1 always output 5V output. But if FB pin of LMR14030-Q1 is shorted to GND because of faulty mounting, the output voltage will be close to the input voltage. They need to protect TPS2549-Q1 and USB output against this phenomenon. So they are considering this solution.
Best Regards,
tateo
Hi,
Yes, i think this connection will impact the loop response. so customer needs to adjust the C(comp) to obtain a better loop response based on their actual test.
