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DRV8850 LDO resistor divider current

David Edwards15
Prodigy 130 points
Other Parts Discussed in Thread: DRV8850

Hi,

I am designing a circuit using the DRV8850, and I would like to use the LDO to power the MCU in my circuit.

I am happy with the 40uA quiescent current in the regulator, but I would also like to minimise the current in the divider network used to set the output voltage. I am hoping to keep this below 10uA, but I can't find a spec for the LDOFB pin input current to help me determine whether this will be enough current in the divider network to maintain accurate regulation.

Any suggestions would be appreciated.

Thanks,

Dave