Features: The board is a high-performance 400KHz 4A switch currency step-up (BOOST) module This module XL6009 is coming with the 3rd generation high-frequency switch technology as the core chip The performance is much higher than LM2577 Wide input voltage: 3V-32V; Optimum operating voltage range: 5-32V; Wide output voltage: 5V-35V. With 4A high efficiency MOSFET switches, so the efficiency can be up to 94%, (LM2577current is 3A only). With ultra high switch frequency 400KHz,even if small capacity filtering capacitors can achieve very good results, ripple is smaller (Compare to LM2577 frequency 50KHz) Specification: Model: boost module Module Properties: Non-isolated boost (BOOST) Rectification: Non-Synchronous Rectification Input Range: 3V~32V Output Range: 5V~35V Input Current: 4A (max), no-load 18mA (5V input, 8V output, no-load is less than 18mA. Higher the voltage, the greater the load current.) Conversion efficiency: <94% (greater the pressure, the lower the efficiency) Switching frequency: 400KHz Output Ripple: 50mV (the higher the voltage, the greater the current, the greater the ripple) Load Regulation: +/-0.5% Voltage Regulation: +/-0.5% Operating Temperature:-40 degree to +85 degree Body Size: about 43 x 20 x 12mm/1.7" x 0.8" x 0.47"(L*W*T) Input way: IN+, IN-; Output way: OUT+, OUT- Package include: 1 x DC-DC Step Up Boost Module