The present application discloses a power supply circuit, a chip and an electronic device. The circuit comprises: a power module, configured to supply power to a computing chip in serial connection; a first power management module, connected with the power module and the computing chip, and configured to supply power to a core of the computing chip according to a voltage provided by the power module; and at least one second power management module, connected with the power module and the computing chip, and configured to supply power to at least one voltage domain of the computing chip according to the voltage provided by the power module correspondingly before the first power management module supplies power to the core.