Other Parts Discussed in Thread: TPS54320
Hi All,
When I test TPS54320EVM and learning TPS54320 datasheet. I found two questiones and hope you can help me solve it.
1. When TPS54320EVM no load power off, the SS pin will shows a unexpected pulse. It is seemed that Vin has been lower than UVLO and the device should have shut down. What makes SS pin has thi pulse, what is our principle and steps of TPS54320 shutdown? Pls let me know all of them to help me figure this phenomenon?
2. When I learn TPS54320 datasheet I found an additional formula of calculate output capacitance. But I don't know the principle of it. Why we need to those 4 switch cycle time in calcuating the voltage ripple? Is it an empirical value or a specific requirement?
