TMS320F28388D: 关于TMDSCNCD28388D --> 1.2V电源设计的疑问

就F28388D来说是不需要这个电感的，手册在只明确了需要去耦电容：

1.2-V Digital Logic Power Pins. TI recommends placing a decoupling capacitor near each VDD pin with a minimum total capacitance of approximately 20 µF. The exact value of the decoupling capacitance should be determined by your system voltage regulation solution. A single 56Ω resistor (10% tolerance) should be placed between between VDD and VSS. This resistor provides a load to consume an internal VDD3VFL to VDD current source and avoid VDD voltage rising during low power device conditions.

不知道是否跟TPS62420DRCR有关，你可以去咨询一下电源芯片的工程师。

另外很奇怪这里的电感值是标的是220ohm

好的，感谢你的反馈。