Introduction 1: The new original XLSEMI chip, eliminate fake, disassemble chip. 2: Imported SMD electrolytic capacitors, not accompanied by homemade capacitance. 3: Up to 400Khz operating frequency, and LC filter circuit, output ripple is very low. 4: Import TDK inductors, the heat and noise to a minimum. 6: Input and output three MLCC Multilayer ceramic capacitors, interference enhance stability. 7: PCB use kb of A grade sheet material, to prevent cardboard, garbage plate. 8: Built-in MOSFET, the LM2577 built-triode say goodbye, can reach 94% efficiency. 9: Increased enable the port, you can control whether the boost circuit. 10: Dimensions: 49 (L) * 23.4 (W) * 11.4 (H) mm (excluding potentiometer) Parameters Module Properties: non-isolated step-up & down module (BOOST & Buck) Input voltage: 5-32V Output voltage: (1) continuously adjustable (1.2-35V) Output Current: 1.5A (MAX) Input Current: 4A (MAX) Output power: natural cooling 20W, plus heat sink 25W (MAX) real power Maximum output power = input voltage conversion efficiency * 4A *conversion efficiency Conversion efficiency: the efficiency of the measured voltage and current commonly used (hereinafter, for reference only)