CX918 5V3A 100KHZ car charger IC Overview CX918 is a car charger chip, SOT23-6 package, the input range 10V ~ 40V (typically 12V, 24V), the output of 5V, the maximum output current of 3.1A / 2.1A ( specific value is determined by the current-sense resistor Rsen). In a heavy load (Iload demand> 2A / 1A), achieve constant function (CC), Iload actual = 2A / 1A, design precision 8%; the load is light (Iload <2A / 1A), constant pressure function (CV), Vo = 5V, design accuracy of 3%. And with the OTP, OVP, OCP, short circuit protection, cable compensation, providing light load operation. ? Features a wide range of input voltage: 10V-40V switching frequency 100KHz charging voltage charging current accuracy of ± 2% accuracy of ± 8% line loss compensation limit and short circuit protection function, 6-pin SOT23-6 package Applications??????? ? walkie-talkie, chargers? laptops, handheld instrument