10PCS UC3843A UC3843 3843 power IC SOP-8 GOOD QUALITY. $2.10 + $2.88 shipping . 10PCS 3845B UC3845B UC3845 SOP-8 IC original ON. $3.33 ... Details about 10pcs/lot UC3843AN UC3843 3843B UC3843A 3843A SOP-8 Switch power supply contr ...Description The UC3842/UC3843/UC3844/UC3845 are fixed frequencycurrent-mode PWM controller. They are specially designed for Off-Line and DC to DC converter applications with minimum external components.
compared to linear converters. The switching power converter efficiencies can run between 70-80%, whereas linear converters are usually 30% efficient. The DC-DC Switching Boost Converter is designed to provide an efficient method of taking a given DC voltage supply and boosting it to a desired value.