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LM5050-1: LM5050 quiescent current too big

Part Number: LM5050-1
Other Parts Discussed in Thread: TPS2491

Hi team,

We found TPS2491’s current consumption is around 500uA when enable pin is pulled down to ground. But as datasheet shows, the Iq is around 90uA when un-enabled. And after removing TPS2491, the current decrease by 500uA.

Could you please check customer’s schematic as attached and give some solutions to solve this?

Best regards

Chen