资 源 简 介
The LM3880 Power Sequencer offers the easiest method tocontrol power up and power down of mulTIple power supplies(switchers or linear regulators). By staggering the startup sequence,it is possible to avoid latch condiTIons or large in-rushcurrents that can affect the reliability of the system.Available in a SOT23-6 package, the Power Sequencer containsa precision enable pin and three open drain output flags.Upon enabling the LM3880 the three output flags will sequenTIallyrelease, after individual TIme delays, permitting the connectedpower supplies to startup. The output flags will followa reverse sequence during power down to avoid latch conditions.
