Power distribution of K66F
Hello Team,
I have a question regarding the power distribution of K66F schematics. If I power the board through the openSDA usb connector, the P3V3_SDA is powered through U17 which means J18 should shorted by R61. However, I find that both R84 and R61 is not populated on the board. Can you tell me where the power of P3V3_SDA is from if J18 is not connected. Also, I found that SDA_VOUT33 is not connected too.
Regards,
Hao
Hi Hao,
P3V3_SDA is powered through J7(SDA_VOUT33).
About the VREGIN and VOUT33, here you can refer:
Best Regards,
Robin
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Thank you very much Robin. It is very helpful. Does any NXP mcu has the USB regulator embedded?
Hao
All the Kinetis MCU with USB module has the USB regulator embedded.