Fixed/adjustable: Adjustable output voltage.. Conditioning: plastic tube. Conditioning unit: 45. Frequency: 52kHz. Function: step down voltage regulator. Note: output 1.23V...57V, 3A. Note: adjustable voltage regulator. Max output voltage: 57V. Minimum output voltage: 1.23V. Number of terminals: 5. Output current: 3A. ON/OFF: 1. RoHS: yes. Assembly/installation: surface-mounted component (SMD). Housing: D2PAK ( TO-263 ). Housing (according to data sheet): D2PAK ( TO-263 ). Operating temperature: -40...+125°C. Vin input voltage (max): 60V. Vin input voltage (min): 40V