Specification: 1.Module feature:XL6019 step up module 2.Module type:Non-isolated boost 3.Rectification method:Non-synchonous rectfication 4.Input voltage:3V-35V 5.Output voltage:5V-40V(notes can not step down voltage) 6.Input current:3A(maximum 5A) 7.Transfer efficiency:94%(The highest)Normal efficiency for 85% 8.Switching frequency:220KHz 9.Output ripple: