The use of the LTC1646 to make a CompactPCI board hot swappable, so the system power can remain uninterrupted while the board is being inserted or removed, is described.
Hot Swap controller
Although ±12V supplies are provided on the CompactPCI backplanes, many plug-in boards only require 5V and 3.3V. The LTC1646 is the ideal power supply isolation controller for these applications.
The LTC1646 Hot Swap controller is designed to meet the power supply isolation requirements found in the CompactPCI hot swap specification PICMG 2.1 for plug-in boards requiring 5V ...