Datasheet XL4016 (XLSemi) - 8

Datasheet 12A 180KHz 40V Buck DC to DC Converter XL4016 Typical System Application (TTL shutdown function) Logic level signals shutdown function can be used in typical system application with external components. When the TTL high voltage above 3.3V(referenced to ground, lower than 7V), the converter will shutdown, input current less than 5mA; when the TTL Low voltage below 0.8V(referenced to ground), the converter will turn on. L1 47uH/12A VOUT=1.25*(1+R2/R1) IOUT=0~12A VIN 5 3 SW D1 R2 XL4016 CFF MBR2045 CC 10K 33nF C2 COUT 105 R3 105 1000uF/25V VC 10K 2 FB VIN 4 1 VOUT CIN C1 GND D2 470uF/50V 105 1N4148 R1 OFF(High>3.3V) 3.3K ON(Low<0.8V) TTL current capability larger than TTL high voltage/(R1+R3) Figure9. XL4016 Typical Application Circuit Rev 1.6 www.xlsemi.com 8