This is DC 3V to 5V Boost Converter USB Output Mini Step up boost Power Converter Module. It has Mini PFM Control and on-board input voltage indicator. High 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 200MA. It has on-board USB female can supply power directly to the USB interface.

Specification:

Input Voltage Range: 0.9 ~ 5V

Output Voltage Range: 5.1 ~ 5 .2V

Output Current: Rated 1A ~ 1.5A (single lithium input), the maximum 1.5A (single lithium input)

Efficiency: Up to 96% (the higher the input voltage, the higher the efficiency)

Switching Frequency: 500 KHz

Features:

Mini PFM Control

Onboard input voltage indicator

High conversion efficiency, maximum to 96%

Onboard USB female can supply power directly to the USB interface

Applications:

DIY mobile power supply, only needs 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 the 5V power supply when you only have a lithium battery, this module can be directly step-up to 5V, solve your problems.