0.9V-5V to 5V 600mA DC-DC Step Up Boost Converter Module With USB

Description
DIY a mobile power supply , just need one battery, you can run 5V voltage for your phone, MP3, MP4, PSP charger, very easy.
To be able to control your electronic devices when your device needs 5V power supply, you can only record directly to 5V if you only have lithium battery. You can solve your problems.

Features
Mini PFM Control
On board input voltage indicator
High conversion efficiency, maximum 96%
Each 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 200MA
On-board USB female, can supply power directly to USB interface
Small dimension
Input voltage: 0.9-5VDC
Outputvoltage: 5V DC