TPS65177A: The input current doesn't decrease monotonously with the increasing of Vin

Robin Yu

Intellectual 2190 points

Part Number: TPS65177A
Other Parts Discussed in Thread: TPS65177

Hi team,

Please see attachment.TPS65177.docx

Thank you.

Robin

over 8 years ago

0 Ilona over 8 years ago

TI__Expert 8010 points

Hello Robin,

I will take a look at it and get back to you asap.

Best Regards.
Ilona

0 Ilona over 8 years ago in reply to Ilona

TI__Expert 8010 points

Answer: The issue was found to be due to loop instability. Previous compensation resistor Rcomp was 130 kOhm, which needed to be adapted to 70 kOhm.

Best Regards.
Ilona

Power management

Power management forum

TPS65177A: The input current doesn't decrease monotonously with the increasing of Vin