In the 8-SOIC (0.154, 3.90mm Width) package, you can find it. Easily transportable packaging in Tube-shape. The temperature should be regulated to 0°C~70°C for reliable operation. You should be able to use it as long as you use a 4.5V~5.5VV power source. MIC2012 numbers are members of this family. 16μA is currently in supply.
MIC2012PCM Features
MIC2012PCM Applications
There are a lot of Microchip Technology MIC2012PCM Controllers Interface ICs applications.