The application discloses a dual power
bus transceiver with low dropout linear
voltage regulator, a
voltage conversion circuit and a display
system. The dual power
bus transceiver with low dropout linear
voltage regulator comprises a first power pin for connecting a first power supply, a second power pin for connecting a second power supply, at least one first pin electrically connected to the first power supply and leading to an input port, at least one second pin electrically connected to the second power supply and leading to an output port, a third pin, a voltage conversion module comprising at least one voltage conversion unit, an input end of the voltage conversion unit being connected to the first power supply, an output end of the voltage conversion unit being connected to the second power supply, and a low dropout linear
voltage regulator connected to the third pin.