Trouble TI's engineers to take a look?
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HI
首先从应用上Powerpad是需要接GND的。其次Powerpad需要用作散热,简单的说需要通过与Powerpad连接的GND来散热(将GND 铜箔当作散热片来用),这就要求芯片Powerpad充分的与PCB的GND焊接上,并扩招GND的面接来散热。
HI
按照你的条件3.3V输入1.1V/500mA输出没有问题,功耗1.1W, 热阻50℃/W, 环境温度不要超过70℃都没有问题,当然更低一些就更好。
hi :
First of all, thank you for your attention and reply, and I would like to know the startup time of this VOUT.
Antony