I have been thinking about using the LT1121 IC in a Propeller project that I am working on. The LT1121 has a SHUTDOWN pin, and when the SHUTDOWN pin is supplied with the proper logic, it shutoffs off the output from the regulator.
I initially thought that I needed 5V to trigger a shutdown, but now I am not so sure. I would really like to trigger a shutdown with an output from the Propeller, without any fancy shmancy extra components. Could someone please take a peek at the attached datasheet and let me know if a 3.3V output will trigger a shutdown, because now I think the Propeller can control a shutdown, without extra components.
The illustration on the first page with the on and off values is what got me thinking that the Propeller can control the output.
And perhaps, if the Propeller can't control a shutdown with the LT1121, is there any drop in replacement which the Propeller can control?