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| EUP3268A ds3268a ver1.2 aug. 2016 1 cc/cv mode synchronous step-down converter description the EUP3268A is a synchronous step-down converter capable of driving 4a continuous load with excellen t line and load regulation. the EUP3268A operates in either cc (constant current) mode or cv (constant voltage) mode with an input voltage range from 8v t o 36v. the EUP3268A provides programmable cable compensation by adjusting external resistor divider . external shutdown function can be controlled by pulling comp pin to a level below 0.14v. fault protection includes secondary cycle-by-cycle current limit, short circuit protection and thermal shutdown. internal soft-start minimizes the inrush supply current and the output overshoot at initial startup. the EUP3268A is available in sop-8 (ep) package. typical application circuit features 8v to 36v wide input operating range 80khz~800khz switching frequency selection cc/cv mode control up to 4a output current +/- 1.5% voltage reference accuracy +/- 4% constant current accuracy programmable cable compensation internal soft start single pin to external compensation and shutdown control hiccup short circuit protection secondary cycle-by-cycle current limit thermal shutdown available in sop-8 (ep) package rohs compliant and 100% lead(pb)-free halogen-free applications car charger portable charger applications dc/dc converters with current limited figure 1. application circuit
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