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XL3003 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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XL3003 Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers |
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1 / 14 page  XLSEMI Datasheet 4A 220KHz 36V Buck LED Constant Current Driver XL3003 Rev 1.2 www.xlsemi.com 1 Features n Wide 8V to 36V Input Voltage Range n Output Current Sence Voltage is 0.21V n Maximum Duty Cycle 100% n Minimum Drop Out 0.3V n Fixed 220KHz Switching Frequency n 4A Constant Output Current Capability n Internal Optimize Power MOSFET n High efficiency n Excellent line and load regulation n Built in thermal shutdown function n Built in current limit function n Built in output short protection function n Available in TO-252 package Applications n Buck constant current driver n Monitor LED Backlighting n General purpose LED lighting General Description The XL3003 is a 220 KHz fixed frequency PWM buck (step-down) LED constant current driver, capable of driving a 4A load with high efficiency, low ripple and excellent line and load regulation. Requiring a minimum number of external components, the regulator is simple to use and include internal frequency compensation and a fixed-frequency oscillator. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An over current protection function is built inside. When short protection function happens, the operation frequency will be reduced from 220KHz to 60KHz. An internal compensation block is built in to minimize external component count. Figure1. Package Type of XL3003 |
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