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TPS25940-Q1: Application questions

Part Number: TPS25940-Q1

Hello team,

Aimed at one usage that OVP connect to 12V battery and VIN connect to 3V back up battery.

Main usage:

1. 12V cut-off, the Out will output 3V.

2. 12V is on, OUT don't output 3V.

Questions:

1. while OVP=12V,VIN=3V, what is the Iq at this condition?

2. The 3V is very low so they don't want add one more diode to prevent the reverse current from 12V to 3V? Double confirm whether there is reverse protection.

Thank you so much.

Best regards,

Lanxi Li