Other Parts Discussed in Thread: TPS54226
Hello,
I am using the TPS53511 as an alternate solution to the TPS54226.
With the TPS53511, I have a large output ripple (about 80mv) on the 3.3V ouputs. See below.
The SW output waveforme is :
I do not have this problem with TPS54226 in the same conditions :
- ripple voltage is <10mV
- the SW output is a stable PWM signal close to 700kHz.
Given the datasheet of both component, I do not understand why such difference and what needs to be tuned to get similar performance.
Thanks for your help and support,
Philippe.