Other Parts Discussed in Thread: TPS62150A-Q1, TPS62130A-Q1
Hi experts:
As you known TPS65381A-Q1 is qualified to power TMS570 family of processor. As recommended design, the VDD1 output from TPS65381A-Q1 is used to power the VCC power rail of TMS570, which is 1.2V/510mA(typ), 990mA(max). VDD1 is a linear regulator with external pass FET which generate 1.2Vout from 6V input. Such the power dissipation of external FET is very high, 2.4W to 4.8W. This high power dissipation is very difficult for customer to handle. I am wondered is there any solution to reduce the power dissipation of VDD1? such as replacing VDD1 linear regulator with discrete buck DC/DC?
Thank you!
John