Hi, I'm looking for 1 or 2 IC's (preferably 1) that can do this job for me. I have 3 devices that I need to power, and I need to power them one at a time. Each of these devices has a Vdd pin that requires 3V and about 1-2mA. Obviously each device is on it's own line and whatever chip you recommend will need to be able to drive these devices. What I need is a 3V IC that powers these in succession at programmable frequency. For example, if I use a resistor to select a clock frequency of 1 Hz, this IC would do the following 0-1 seconds : power device 1 by applying 3V to 1st output line 1-2 seconds : power device 2 by applying 3V to 2nd output line 2-3 seconds: power device 3 by applying 3V to 3rd output line 3-4 seconds: power device 1 by applying 3V to 1st output line The only way I can think of doing this is to use a ring oscillator and then a frequency divider and also a multiplexor to get 4 different outputs. This is a very low power application so I'm trying to avoid using this many IC's. Also this works only with 4 and not 3. Ideally this chip could be scaled up to use more, for example in the future if I wanted to power 8 devices in this manner, I could just add more lines. That is not a requirement however for this project.