ACT4523 Rev 7, 01-Aug-13 Wide-Input Sensorless CC/CV Step-Down DC/DC Converter FEATURES • 40V Input Voltage Surge • 38V Steady State Operation • Up to 3A output current • Output Voltage up to 12V • Patent Pending Active CC Sensorless Constant Current Control − Integrated Current Control Improves Efficiency, Lowers Cost, and Reduces Component Count • Resistor Programmable − Current Limit from 1.
5A to 3A − Patented Cable Compensation from 0Ω to 0.
3Ω • ±7.
5% CC Accuracy − Compensation of Input /Output Voltage Change − Temperature Compensation − Independent of inductance and Inductor DCR • 2% Feedback Voltage Accuracy • Up to 94% Efficiency • 225kHz Switching Frequency Eases EMI Design • Advanc...

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