Hello Jared,
Thank you for your response.
The output of external LDO is 2.5V as you know. Customer wants to reduce the leakage current at sleep mode of her own device. So the external LDO will be used to turn off BQ27410 at sleep mode. Customer has already known HIBERNATE mode. But she would like to eliminate even 4uA of HIBERNATE. Do you have any idea for me?
Customer's application is Blood Glucose Meter. So the leakage current is one of the most important thing.
Thanks.