Hi Haritha,

Unfortunately, we do not have an independent IBIS/Pspice model for the TPS3430. Though, you can use the TPS3850 PSpice model to characterize the WD behavior of the TPS3430. Both device will have the same WD parameters and electrical characteristics in PSpice.

You can download the model in the link below or use PSPICEforTI to run the simulation.

https://www.ti.com/product/TPS3850

https://www.ti.com/tool/PSPICE-FOR-TI

Jesse