Texas Instruments, LM2596S-3.3/NOPB Step-Down Switching Regulator, 1-Channel 3A 5-Pin, D2PAK
Texas Instruments Step-Down Switching Regulator, 1-Channel 3A 5-Pin, D2PAK, Regulator Function: Buck Controller, Inverting, Minimum Input Voltage: 4.57mm, Efficiency: 73%, Length: 10.5 V, Maximum Input Voltage: 40 V, Output Type: Fixed, Mounting Type: Surface Mount, Maximum Switching Frequency: 173 kHz, Package Type: D2PAK (TO-263), Switching Regulator: Yes, Dimensions: 10.16mm, MPN: LM2596S-3.