we have design custom board using ls1012a processor and power chip VR5100. We used reference design board as LS1012AFRDM board. But but after power up our custom board we are not getting 5V supply. Is it required to configured VR5100 chip through I2c?
In the VR5100 Data Sheet it is stated that SWBST is not used (OFF).
Please note that it will be more convenient to create new Community question specifically for the VR5100 - not LS1012A platform.
> not getting 5V
Excuse me, but 5V should be provided externally - refer to the FRDM board Reference Manual, 2.2.1 Primary power supply:
"The FRDM-LS1012A is powered through the CMSIS USB port (USB 2.0 Type Micro-AB)."
I want to clarify you that I am referring to LXBST pin of
MC34VR5100A1EP chip in our custom board. Which we want to use to
provide 5V supply to USB port. we have connected required circuit as
per the data-sheet of MC34VR5100A1EP chip.
Yes, Correct FRDM required external 5V supply. But the problem is
comming in our custom board. So we want to know any configuration
required for VR5100 to provide 5V supply.