LM5170-Q1: Power management

bumsu kim

Prodigy 20 points

Part Number: LM5170-Q1

Dear, Sir.

I want to know LM5170-Q1's closed-loop transfer function.

However, only the open-loop transfer function is shown in datasheet 43p.

I think the closed-loop transfer function can be obtained as shown in the picture below, right?

And I wonder why the open-loop transfer function in the datasheet does not contain "ISETA".

Best Regards,

Bumsu Kim

over 4 years ago

0 Youhao Xi over 4 years ago

TI__Guru 73310 points

Hi bumsu,

Thank you for posting. You are right the closed loop transfer function can be obtained like this. ISETA is the reference it does not in the transfer function, but the closed loop gain times ISETA equals I_Im.

Hope this clarifies.

Thanks,

Youhao Xi, Applications Engineering.

0 bumsu kim over 4 years ago in reply to Youhao Xi

Prodigy 20 points

Youhao Xi,

Thank you for your kind answer :)

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LM5170-Q1: Power management