TPS61251: Shut-down current TPS61251 versus Shut-down current in TPS61251

for TPS61251, you can refer the description in "POWER GOOD" chapter to understand how this circuit consume input current. if this circuit is disabled, the shutdown should be smaller. this also mean the TPS61252 should has smaller shutdown current than 0.85uA. I don't have the data when the PG circuit is disabled. i will check this original datasheet writer, which may take weeks. currently, i can only suggest following the datasheet to set the shutdown current at 0.85uA.

Hi Jasper,

Thanks a lot for the input. I wanted to confirm tzhe shut-down current I see on the evaluation board of aprox 9uA when I disable the Booster.

Can you confirm this is the value?

Best regards,

Mihai

yes. i will check this. however, i'm out of office until 19th. i can't access to the lab before that.
is there any other possible leakage path when test the data?

Hi Jasper,

I checked this in the EVM and I see no other leakage path on the Input voltage pin.

Best regards,

Mihai

i'm trying to the root cause of this issue. it may need some times.