This is a 5V DC-DC booster, it is based on the mini PFM DC/DC IC CE830. It is an excellent booster. Just input 0.9-5V DC power to it, it will output a stable 5V power.
There with a USB port onboard for 5V out, or you can use the pads on the bottom. Can be used with 2x AA batteries to supply stable 5V for USB-powered devices.
Features
IC: CE8301
Input Voltage: 0.9V - 5V
Output Current: 0.6A Continuous @ 4V
Output Voltage: 4.75V - 5.05V
Dimension: 34 x 16.2 mm
Efficiency: 85% Typical, 96% Max
Accuracy: +/- 2%
Frequency: 100kHz Max
Switching Current: 200mA Typical
Onboard Type-A USB connector
Onboard LED indicator (recommended to remove for performance improvement)
