Hi,
The max spec for Iq is 60uA so it is unlikely that the LDO's internal circuitry is drawing so much current unless the part is damaged. Have you tried the following:
- Isolating the load and measuring the current draw by the LDO when nothing is connected to the output?
- Trying a different LDO unit to make sure the one you are using is not damaged?
You are using the fixed version, so there can be no extra current flow through the resistor divider that is used in the adjustable version.
Regards,
Kartik