Description Mini PFM ControlOn board input voltage indicatorHigh conversion efficiency maximum to 96 Any DC voltage input 0 9V 5V output 5V DC voltage can be stable with two AA batteries input to the output current of 500 600MA single AA battery power supply output current about 200MAOn board USB female can supply power directly to the USB interfaceSmall dimensionSpecification Input voltage 0 9 5V DCOutput voltage 5V DCPCB size 34mm x 16 2mmApplications DIY a mobile power supply only need one battery you can output 5V voltage for your phone MP3 MP4 PSP charger very easy In order to power your electronic devices when your device needs 5V power supply when you only have lithium battery this module can be directly step up to 5V solve your problems Package included 3 x Mini PFM control DC DC USB 0 9V 5V to 5V DC boost step up