LM5116: Buck converter will not regulate

Paul Simon

Part Number: LM5116

Buck converter will not regulate at light load, and will regulate to the right voltage but is ramp and switch node is unstable

0 EricLee over 1 year ago

Hello Paul

Would you please share the schematic and the waveforms for more investigations ?

Especially, please send me the completed Quick Start including your electrical specifications and component selections.

-EL

0 Paul Simon over 1 year ago in reply to EricLee

My spec: input 22-36V

Vout; 12V

Max current: 9amps

need to startup in no load

Cannot paste schematic in this forum

0 EricLee over 1 year ago in reply to Paul Simon

Hello Paul.

You can paste the schematic, Please click INSERT ==> IMAGE/VIDEO/FILE ==> UPLOAD ==> OK .

-EL

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