Please let me check about TPS7A91.
Table 2 of the data sheet P.18, the combination of output setting to Vout: 3.30V is R1: 3.57kΩ and R2: 1.15kΩ.
The combination of R1: 4.7kΩ and R2: 1.5kΩ has a Vout closer to 3.30V.
Why did you choose the combination shown in Table 2?
Is there any reason?