Part Number: LSF0102
There is confirmation in the LSF0102 datasheet.
<DataSheet Rev.K>
www.ti.com/.../LSF0102
There are two ways to describe Vref_B.
-------------
1: 6.3 Recommended Operating Condition (Page5)
Vref_B max5.0V
2: Table 9-2. Application Operating Condition
Vref_B max5.5V
-------------
Can you use Vref_B and Vpu(B) between 5V and 5.5V?
We think that there is no problem if it is the description method of No.2.