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LM5140-Q1: maximum output current

Part Number: LM5140-Q1
Other Parts Discussed in Thread: LM5143-Q1,

Hi team,

Here is a confusing item about LM5140; LM5140 is a external switch buck controller.

Since MOS in this converter is external, so how to know the maximum output current of LM5140, or what the maximum power could this part support? 

If it's only limit to the external stage or there is a limit from our LM5140.

Thanks.

Best regards,

Mia Ma