Hello,
As described in the technical document on TIDA-01604, the design uses a non-linear voltage controller to handle the rapid changes in load.
Please refer to "3.2.5.2 Non-Linear Voltage Loop for Transient Reduction" below.
https://www.ti.com/lit/ug/tidue54b/tidue54b.pdf
Can you please provide the CCS code for the said controller? Thank you.