Low current regulator.

[Kesh]

Been using an LM317 as a current regulator.

Problem is the datasheet doesn't recommend going below 10mA, that is, a 120R resistor over the 1.2 V reference voltage. I did go up to 180R and the regulation does get a bit wrong, I think because of the unit's necessary quiescent current

Does anyone know a component that can regulate current down to lower mA?

[WaveshapeIllusions]

The LM9036 looks good. It mentions ground current in uA and looks like it can supply as low as 100 uA. Decent voltage handling too. Hope this helps.

[Kesh]

Thanks. I wonder if it's stable as a current reg. Low dropout devices have that weird ESR cap thing. Also seems to be surface mount only.

[Kesh]

I'm being really dumb. The lm317L (the 100mA version) has about a 1.5mA minimum current.

Should have been the first place I looked