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TPS563209: Question to TPS563209 datasheet ("SLVSCM5A –SEPTEMBER 2014–REVISED NOVEMBER 2016")

Michael Rohner
Prodigy 30 points
Part Number: TPS563209
Other Parts Discussed in Thread: TPS562209, , TPS563200

Hi

The combined datasheet for TPS562209 and TPS563209 ("SLVSCM5A –SEPTEMBER 2014–REVISED NOVEMBER 2016") states:

"IVFB VFB input current    0    ±0.1 mA" Can this value be true?
A feedback input pin current variation from 0 up to 0.1mA in combination with the recommended voltage divider 10kOhm/55kOhm would cause an output voltage deviation of several volts.

"Current limit(1)    DC current, VOUT = 1.05V , L1 = 2.2 µH    2.5 3.2 4.3 A" and "Current limit(1)    DC current, VOUT = 1.05V , L1 = 1.5 µH    3.5 4.2 5.3 A" 
Why does the current limit not depend from the selected component, TPS562209 (2A type) or TPS563209 (3A type)?