Battery powered applications

[NavMicroSystems]

Thanks Melanie,

you are right, chances are that the regulators are slightly off 5.00V, this is something I could compensate as long as the output is relatively stable and there is not too much drift.

Some of the sensors are integrated types and require a 5.0V supply, so running the circuit at 3.3V or 4.5V is not an option.
For higher resolution I'm using an external ADC.

The LP2950 Regulator has an initial tolerance of 0.5%
and a line regulation of 0.05%
quiescent current is 75µA "only"

I'll give it a try.

Or do you know any "better" Regulator?

Worst case I would have to solve the problem by throwing battery capacity at it