The 762-EXT from Analog Module Inc. is a Laser Diode Driver with Operating Temperature 0 to 50 Degree C, Storage Temperature -20 to 70 Degree C, Output Current 0.1 to 2.5 A, Pulse Width 20 ns, Input Voltage 4.75 to 5.25 V DC. More details for 762-EXT can be seen below.