Part Number:LM5175
Tool/software: WEBENCH® Design Tools
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Please check their input transition simulation result
LM5175_Input_transient.pdf
When Vin change 12V to 10V,Vout become around 11.2V. Is this normal behavior ?
webench_esim_5297731_10_1_678545737.pdf
When Vin change 12V to 8V,Vout change -450mV/+150mV in this simulation.
If you have LM5175 actual waveform of input transition test,please send it to us.