TPS548A28: Remote sense cap

Naizeng Wang

Part Number: TPS548A28

Tool/software:

Hi team,

Customer is using our TPS548A28 but they found that the jitter is too big(>40%), so they tried to increase the remote sense resistor from 0.1uF to 0.47uF, it worked. Is there any risk to use 0.47uF cap? Is there any general way to reduce jitter?

Nison

over 2 years ago

0 Ryan Chen over 2 years ago

TI__Genius 15187 points

Hi Nison,

There shouldn't be any problems with that. Did they see any issues? It usually depends on the type of jitter and the layout of the board that they are using.
Here is an app note relating to this: Not All Jitter Is Created Equal (Rev. A) (ti.com)

Best,

Ryan

Power management

Power management forum

TPS548A28: Remote sense cap