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Output Ringing Problem in InnoSwitch3-CE dual output Design

Posted by: vivek.gajera on Thu, 07/15/2021

Hi Team, 

We have designed as per power integration simulation tools. 

Our design has two outputs 12V 2A and 5V 3A.  

I have attached the simulation report and we have made PCB and circuit as per that. 

But we are not getting proper output. I have attached the waveform for the same. 


Vivek Gajera



Attachment Size
Simulation file 1.84 MB
5V Reading 19.83 KB
5V Reading 22.23 KB
5V Reading 19.12 KB
12V 21.1 KB
12V 21.49 KB
12V 19.42 KB
12V 21.08 KB


Submitted by vivek.gajera on Thu, 07/15/2021

We have tune snubber,alos output capacitor, and LC network on output side but we can not resolve it.  

Submitted by PI-BERJ on Thu, 07/22/2021

Hi Vivek,

I am not seeing any attachment. Can you also provide the schematic diagram and layout if possible?