SJ-WYUCB DC 7.0~28 to 5V USB Voltage Step Down Regulator Module - Blue
Used at maintenance DIY refit automobile motorcycle battery solar panels and so on charging for cellphones Tablet PC MP3 etc. USB connectors. Input voltage: 7.0~28V output voltage: 5V (error of plus or minus 1%). Output current: 3A(Max.). Conversion efficiency: 96% (highest). The output ripple: < 30mV. Switching frequency: 1.5MHz(highest) typical 1MHz. Working temperature: -45~+85 degree celsius.