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<p align="justify">The RT9363A is a compact, high efficient and highly integrated charge pump white LED driver. It maintains the highest efficiency by utilizing a x1/x2 fractional charge pump and low dropout current regulators. The RT9363A supports up to 3 white LEDs and regulates a constant current for uniform intensity. The part implements a 4-bit DAC for brightness control. Users can select external R<sub>SET</sub> or internal R<sub>SET</sub> by ISET pin. The dimming of white LEDs' current can be achieved by applying a pulse signal to the EN pin. There are totally 16 steps of current could be set by users. The part can support 15mA to 30mA for the 100% current setting. Users also can use the internal R<sub>SET</sub> for 100% current setting of 20mA just by connecting the ISET pin to V<sub>IN</sub>. The operating voltage range is from 2.8V to 5.5V. Internal soft start circuitry effectively reduces the in-rush current while both start-up and mode transition. The load is disconnected from V<sub>IN</sub> while shutdown and the shutdown current is less than 1μA.<br />RT9363A is available in a WDFN -10L 3x3 package.</p>
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<li class="mv5"> Over 80% Average Efficiency Over Battery Life<br /></li><li class="mv5"> Support Up to 3 White LEDs<br /></li><li class="mv5"> 80mV Typical Current Source Dropout<br /></li><li class="mv5"> Support Up to 90mA Output Current<br /></li><li class="mv5"> 1% Typical LED Current Accuracy<br /></li><li class="mv5"> 0.7% Typical LED Current Matching<br /></li><li class="mv5"> Soft Start Function<br /></li><li class="mv5"> Automatic Charge Pump Mode Selection<br /></li><li class="mv5"> 1MHz Random Frequency Oscillator<br /></li><li class="mv5"> Over Voltage Protection<br /></li><li class="mv5"> 16-Step Brightness Control<br /></li><li class="mv5"> Low Input Noise and EMI<br /></li><li class="mv5"> Low 1μA Shutdown Current<br /></li><li class="mv5"> Flexible Current Setting<br /></li><li class="mv5"> RoHS Compliant and 100% Lead (Pb)-Free</li>
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<li class="mv5"> Mobile Phone, DSC, MP3<br /></li><li class="mv5"> White LED Backlighting<br /></li><li class="mv5"> LCD Display Supply</li>
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