The present disclosure relates to a power supply circuit and an electronic equipment, pertaining to the field of electronic circuit. The power supply circuit includes: a battery (120, 220), a power management chip (140, 240) and a radio frequency (RF) chip (160, 260); an output terminal of the battery is connected to at least one input terminal of the power management chip, while the at least one input terminal of the power management chip is individually grounded via a corresponding filter capacitor (C1), respectively; and the output terminal of the battery is also connected to an input terminal of the RF chip via a switching power supply circuit (180, 280). In the present disclosure, a switching power supply circuit is provided between the output terminal of the battery and the input terminal of the RF chip, thus the noise produced by the ceramic capacitor, which may still generate vibration although, during its vibration is inaudible for human.