Power supply control circuit with low quiescent current and vehicle-mounted power supply

The utility model provides a low quiescent current power supply control circuit and a vehicle-mounted power supply. The circuit is connected with a CAN module and an MCU module, and at least comprises a switching circuit, a first enabling circuit and a second enabling circuit, the switching circuit is provided with a control end, an input end and an output end, the input end is connected with an input power supply, the output end is connected with the MCU module, and the control end is respectively connected with the first enabling circuit and the second enabling circuit; the first enabling circuit is connected with the CAN module, and the second enabling circuit is connected with the MCU module. The vehicle-mounted terminal has the advantages that the vehicle-mounted terminal can enter a sleep mode of ultralow quiescent current, 0.05 mA can be achieved, the quiescent current is small in temperature change, the vehicle-mounted terminal is effective, reliable and low in cost, and meanwhile the requirement of c