The LM3881 Power Sequencer offers the easiest method to control power up and power down of multiple power supplies (switching or linear regulators). By staggering the startup sequence, it is possible to avoid latch conditions or large in-rush currents that can affect the reliability of the system.
Features
Easiest method to sequence rails
Power up and power down control
Input voltage range of 2.7V to 5.5V
Small footprint MSOP-8 package
Low quiescent current of 80 µA
Output invert feature
Timing controlled by small value external capacitor