I am not familiar with this tool. We do have the efficiency tool, found here: https://www.ti.com/tool/PEET-GUI .
Can you provide a reference or example of the type of tool that you are looking for?
Thanks and Regards,
Please refer to the Application curves found in section 11.2.2.
Figure 11-4. BUCK Efficiency at 3.3 V or 5 V Input Voltage through Figure 11-11. BUCK Efficiency at different TA, Forced-P…