TPS65310A-Q1: The large Vripple about BUCK2 and BUCK3

user5795039

Part Number: TPS65310A-Q1

Dear All：

when I tested the Vripple about BUCK2 and BUCK3 , I found that there are large than 50mv, are there some methods to reduce the Vripple.Thank you .

over 6 years ago

0 Nastasha over 6 years ago

TI__Genius 10000 points

Hi,

I have looped in the device expert. Can you verify what your external capacitance is on BUCK2 and BUCK3? Also, if you can provide any scope shots of your ripple measurement with the BUCK output, input, and load, that would be helpful!

Thanks,
Nastasha

0 Krishnamurthy Hegde over 6 years ago in reply to Nastasha

TI__Expert 8730 points

Hello,

Also please check buck 2/3 compensation settings and also send me the schematic diagram. What is the load current on each regulator ?

Regards ,

Murthy

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TPS65310A-Q1: The large Vripple about BUCK2 and BUCK3