XL6009 DC to DC Boost Converter 3.0-30V to 5-35V Step-up Transformer Power Module, Pack of 10

The XL6009 module is a non-isolated step-up voltage converter featuring adjustable output voltage and new generation(XL6009E1 core chip) high-frequency(400KHZ) switching technique, the performance is much better than LM2577. Designed for multiple practical applications that need a boost voltage, such as DIY an output adjustable mobile power, temporarily set up power supply in the outdoor, charge your electronic devices etc. Input Voltage: DC 3V to 30V (optimum working voltage range is 5V to 30V). Output Voltage: DC 5V to 35V (continuously adjustable), maximum output current is 4A. Ultra-compact power module with simple operation. Using a mini screwdriver to step up / down output voltage by turning slotted screw on the blue trimpot, and monitor voltage with multimeter to achieve the expected voltage, clockwise to reduce voltage and counterclockwise to increase voltage. (1 circle means +/- 1V)