6A 5v DC-DC Step-Down Voltage Regulator Module TPS40057 June 29, 2017 by ric96·0 Comments Data Sheet: www.ti.com/lit/ds/symlink/tps40055.pdf Amazon India: http://www.amazon.in/Step-4-USB-Step-down-Power-Module/dp/B01DAA5YK2 Amazon US: https://www.amazon.com/4-USB-Port-Step-down-Power-Module/dp/B00MLTTO6Y