DC1602A

LINEAR TECHNOLOGY  DC1602A  演示板, LT3741 降压控制器

demonstration board is to evaluate the performance of the LT3741 step down controller. It is a synchronous DC/DC converter designed to accurately regulate output currents up to 20A. Its 6V to 36V input voltage range, constant current and constant voltage operation makes it ideal for a wide variety of applications. The LT3741 uses two external switching MOSFETs and delivers up to 20A of continuous output current over a wide voltage range of 0V to 34V. Efficiencies as high as 95% eliminate the need for external heat sinking. The LT3741 uses an average current mode control scheme to maintain inductor current regulation over a wide output voltage range. Its unique topology enables it to both source and sink current. The LT3741"s regulated output voltage and overvoltage protection are set with an external voltage divider. Additional features include an accurate external voltage reference, a programmable undervoltage lockout ULVO pin and thermal shutdown.

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Control pin provides accurate control of regulated output current

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1.5% voltage regulation accuracy

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6% current regulation accuracy

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Average current mode control

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Up to 94% efficiency

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Additional pin for thermal control of load current