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LMR36015FSCEVM: Why is there a large input current when the output is no-load？

Mark-Lee
Prodigy 60 points
Part Number: LMR36015FSCEVM

Hi, TI experts,

My input voltage is 50V, the output voltage is 7.3V, when the output is on-load, there is 30mA input current. Comparing with datasheet the no-load input current type value is 23uA, but in the experiment, the input current is about 30mA. So, I want to know why this converter has such large power loss.