DESCRIPTION
The LTC®4218 is a Hot Swap™ controller that allows a board to be safely inserted and removed from a live backplane. An internal high side switch driver controls the gate of an external N-channel MOSFET for supply voltages from 2.9V to 26.5V. A dedicated 12V version (LTC4218-12) contains preset 12V specific thresholds, while the standard LTC4218 allows adjustable thresholds.

FEATURES
■ Wide Operating Voltage Range: 2.9V to 26.5V
■ Adjustable, 5% Accurate (15mV) Current Limit
■ Current Monitor Output
■ Adjustable Current Limit Timer Before Fault
■ Powergood and Fault Outputs
■ Adjustable Inrush Current Control
■ 2% Accurate Undervoltage and Overvoltage Protection
■ Available in 16-Lead SSOP and 16-Pin 5mm × 3mm DFN Packages

APPLICATIONS
■ RAID Systems
■ ATCA, AMC, μTCA Systems
■ Server I/O Cards
■ Industrial