HiLetgo XL6009 Boost Module DC-DC Adjustable Module DC3.0-30V to DC5-35V Output Voltage Power Converter Circuit Board Module 400KHz XL6009 is a high-performance 400KHz 4A switch currency step-up (BOOST) module. This module 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, the efficiency of XL6009 can be up to 94%(LM2577current is 3A) With ultra high switch frequency 400KHz , even if small capacity filtering capacitors can achieve very good results, ripple is smaller (Compared to LM2577,its frequency is 50KHz) With 0.1uF high-frequency bypass capacitor, effectively filter out high-frequency noise