TPS53318: Load Transient Response

user5006944

Part Number: TPS53318

Now I used TPS53318,In waveform,Blue is en of tps53318 ,Yellow is output ,and other is powergood.Powergood connect the EN of next power.But Load Transient Response is not good .,especially low temperature(-10°C).Can you have some suggestion to help me.

over 7 years ago

0 JohnTucker over 7 years ago

TI__Guru**** 191445 points

Hi user,

It is hard to tell what is happening as your waveform does not show any time and amplitude scales or ground reference. Can you post a better picture? Also please show the switching node and load current. Additionally can you provide the ESR of C2031?

0 user5006944 over 7 years ago in reply to JohnTucker

Intellectual 630 points

0 JohnTucker over 7 years ago in reply to user5006944

TI__Guru**** 191445 points

User,

It appears that the TPS53318 is turning off. What is the load step?

0 JohnTucker over 7 years ago in reply to JohnTucker

TI__Guru**** 191445 points

User,

Did you ever resolve your issue? Do you need further assistance?

Power management

Power management forum

TPS53318: Load Transient Response