The LT3669EUFD-2#PBF is an Industrial Transceiver includes a step-down switching regulator and a low dropout linear regulator. Wake-up detect functionality, as well as a programmable power-on reset timer are also included. The current limit and slew rate of the transmitters are externally adjustable for optimum EMC performance. The line drivers can source/sink up to 250mA of current each or 500mA when connected together, with a minimal residual voltage of less than 2.1V. An internal adaptive pulsing scheme allows the drivers to safely switch heavy capacitive loads and incandescent bulbs. Thermal shutdown provides additional protection. Line protection of ±60V in the line interface pins allows the use of standard TVS diodes with L+ operating voltages up to 40V. The switching regulator integrates the catch diode and implements an IO-Link device PHY.
Integrated step-down switching regulator
Integrated 150mA LDO linear regulator
Rugged line drivers with adjustable slew rate and current limit
Adaptive line driver pulsing scheme to switch heavy loads safely
Drivers configurable as push-pull, pull-up or pull-down
