TPS61170: Output capacitor value

Yuto Sakai

Part Number: TPS61170

Hi,

The recommended value of the output capacitor is specified as Max 10μF.
According to the customer's evaluation, it was found that the electrolytic capacitor 470 μF improves the noise.
So they are trying to connect this capacitor, is there a problem?
I think it is okay if the large capacitor is placed after the FB point, is it correct?

Best regards,
Yuto Sakai

over 5 years ago

0 Helen chen over 5 years ago

TI__Mastermind 40080 points

Dear Sir,

it is OK to add 470uF EL cap at the output side.

But generally EL cap helps the load dynamic performance, it doesn't help with the noise. So I'm curious about the application, could you please share the schematic with us? Or we can discuss by email.

0 Yuto Sakai over 5 years ago in reply to Helen chen

Mastermind 6100 points

Hi Helen-san,

Sorry for the late reply.
I would like to share our customer's application and schematic with you for discussion.
Could you email me directly to the mail address registered with my TI account?

Best regards,
Yuto Sakai

0 Helen chen over 5 years ago in reply to Yuto Sakai

TI__Mastermind 40080 points

OK, Sure :)

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TPS61170: Output capacitor value