The ATLS250MA116D is an electronic module designed for driving diode lasers with up to 250mA low noise current.  The output voltage is 1.5V to 14V when powered by a 16V power supply. When the maximum power consumed by the controller is maintained to <1W, it does not require a heat sink to operate.The controller has a temperature compensation network so that the output current remains the same even as the controller temperature rises.
In case the controller temperature exceeds the preset limit of 120°C, the controller will shut down by itself to prevent the controller from being damaged by the excessive heat.