I'm considering using the above part number boost converter, but am concerned about the output noise at low output currents. In the application, there will be two modes of operation, one at 15 uA, and the other at 150 uA.. The datasheet doesn't have much information about the output noise at these low output current levels. I can add capacitance, as required, but is there an upper limit? Any thoughts or ideas to keep the output noise as low as possible would be appreciated. I'm also trying to keep the quiescent current as low as practical. Or, is there a better choice of boost converter for the application? The Hi Rel is an advantage in the application.
Interestingly, the datasheet refers to a variable output in table 1, but it appears that this device is only available with a fixed 5 Volt output. An output voltage of 4.6 Volts would be optimal.