LM5008: Can NOT work when adding 0.33F capacitor

Kevin Xiong

Part Number: LM5008

Hi,

Our cusotmer is using LM5008 for their product. It works when there is no super capacitor. But if adding the 0.33F capacitor, the LM5008 does NOT work. Please help review the schematic as attachment.

Why?

Thanks.

Kevin Xiong

over 7 years ago

0 Frank De Stasi over 7 years ago

TI__Guru 72845 points

Please send waveforms of the SW node and Vout and any other waveforms when the application is not functioning.

0 Kevin Xiong over 7 years ago in reply to Frank De Stasi

Expert 2340 points

I will ask the customer to measure the waveforms. Thanks.

0 Frank De Stasi over 7 years ago in reply to Kevin Xiong

TI__Guru 72845 points

I will close this due to inactivity

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LM5008: Can NOT work when adding 0.33F capacitor