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LM5013-Q1: VDD UVLO

Part Number: LM5013-Q1

Hi Team,

My customer is evaluating the LM5013-Q1 on their board, and is evaluating the minimum operating voltage of the LM5013-Q1.
<Conditions>
 - VIN of the LM5013-Q1: 6V --> 5.9V
 - EN/UVLO is connected directry to VIN

When VIN is decreased from 6V to 5.9V, the LM5013-Q1 operation becomes unstable.
Do you understand why the LM5013-Q1 operation becomes unstable?
Does internal VDD UVLO work at VIN=5.9V?

image.png

Best Regards,

Koshi Ninomiya