Texas Instruments, LM2576T-5.0/NOPB Step-Down Switching Regulator, 1-Channel 3A 5-Pin, TO-220
89mm, Efficiency: 77%, Length: 10.16 x 4.Texas Instruments Step-Down Switching Regulator, 1-Channel 3A 5-Pin, TO-220, Regulator Function: Buck Controller, Inverting, Minimum Input Voltage: 4 V, Maximum Input Voltage: 40 V, Output Type: Fixed, Mounting Type: Through Hole, Maximum Switching Frequency: 58 kHz, Switching Regulator: Yes, Dimensions: 10.