1. small PFM control DC / DC boost controller chip onboard
2. input any DC voltage of 0.9V ~ 5V, output 5V DC can be stable, with two AA batteries input to the output current of 500 ~ 600MA, a single AA battery power supply output current 200ma so for mobile phonescamera, single- chip, digital products supply. Stable output 5V DC voltage
3. onboard USB female, can be directly powered USB interface device with USB female, versatile
4. on-board input voltage indicator
5. PCB size: 34 (mm) x16.2 (mm) ultra-small size, installed in a variety of small equipment
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