POWER SUPPLY UNIT FOR AEROSOL INHALER AND AEROSOL INHALER

A power supply unit for an aerosol inhaler that causes an aerosol generated from an aerosol source heated by a first load to pass through a flavor source heated by a second load to add a flavor component of the flavor source to the aerosol includes a power supply dischargeable to the first load and the second load and a processing device. The processing device is configured to control discharging to the first load in response to a signal indicating an aerosol generation request, to control discharging to the second load such that a temperature of the flavor source converges to a target temperature based on information on a temperature of the flavor source, and to increase the target temperature based on a cumulative number of times of discharging to the first load or a cumulative time of discharging to the first load in response to the signal.