TPS25961: Current Limit Accuracy - Part Recommendation

Tool/software:

Hi,

I'm currently using a TPS25961DRVR to set a current limit of 1.15A. Specification is as follows:

1. 1.1A nominal current output. Limit must occur between 1.05A and 1.15A.
2. Output voltage between 4.75V and 5.25V. My buck regulator supplying the TPS25961 is an LM5013 set to 5.2V

My testing shows that this configuration just about meets the specification. However, I notice in the datasheet for the TPS25961 that the accuracy is +/-20% and therefore I can't guarantee every board will meet spec.

1. Is there an alternative part I can use to guarantee accuracy?
2. How is the +/-20% accuracy of the TPS25961 calculated? Is this across the entire temperature range, load characteristics, batches etc?

Thanks