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    Troubles in PCB Layout

    Hello, Recently I am trying to use TPS7A3001 (TPS7A3001 PDF )for providing clean and stable +5 and -5 V power for my PCBs. I am aware that the output voltage is adjustable by changing the values of external resistors which is connected between the OUT pin and GND. After reading the datasheet...
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    I don't have any idea about it!

    Hello~everybody!:) I used LPC11E14 (this) to link ADS1211 (24) by port of SPI. Unfortunately, when the mascerating machine in the port of SPI input pins MISO always meet something error. However it’s normal when I replaced a new mascerating machine and it’s in the state of high resistance...
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    the change of voltage with load current

    Good afternoon~ First, thank you for taking the time to read my post. I'm not very professional.So ,Please give me some more time to describe my question. I made a power switch by using MOS, I added triode --S8050NPN to control it in the pre-circuit. The led is act as load in my circuit diagram...
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