LM25119: Dual Phase not sharing current

Paul Montalbo

Part Number: LM25119

Vin: 20V-35V

Vout: 12V-15V

Iout: 40A

Freq: 180k

Some conditions only 1 phase is working. Either Phase1 or Phase2 depending on input/output voltage.

0 Qian Chen over 6 years ago

Hi Paul,

Can you provide the schematic in pdf file?

We need to review schematic first.

Thanks

Qian

0 Qian Chen over 6 years ago

Hello,

We notice you clicked "This did NOT resolve my issue". For further support, we need to review schematic first.

At what condition only 1phase is working? Please provide detailed information.

Thanks

Qian

0 Paul Montalbo over 6 years ago in reply to Qian Chen

I modified the compensation and now sharing OK but still have lot room to improve.

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