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This is a mini DC-DC step-down power module based on MP1584 and it outputs adjustable voltage. The output voltage can be adjusted by the potentiometer. Input voltage should be 1.5V higher than the output voltage or more. It is small size£¬ light weight£¬ especially for model airplane£¬ smart car£¬ Arduino DIY and other items. Features: - Module type: Non-isolated step-down module (buck); - Pins package: Both SMD and 2.54mm pin headers are available; - Input voltage: 4.1-26V DC - Output voltage: 3.3V£¬ 5V£¬ 12V£¬ or 0.8 - 20VDC - No load current: small£¬ 0.2mA; - Output Current: 3A(MAX) - Continuous current: 1A(MAX) - Conversion efficiency: 92%(MAX)