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The RT5768A is a high efficiency synchronous, step-down DC/DC converter. It's input voltage range from 2.7V to 5.5V that provides an adjustable regulated output voltage from 0.6V to V<sub>IN</sub> while delivering up to 3A of output current. The internal synchronous low on resistance power switches increase efficiency and eliminate the need for an external Schottky diode. The switching frequency is fixed internally at 1MHz. The 100% duty cycle provides low dropout operation, hence extending battery life in portable systems. Current mode operation with internal compensation allows the transient response to be optimized over a wide range of loads and output capacitors. The RT5768A is available in WDFN-10L 3x3 package.
RT5768A Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>High Efficiency : Up to 95% </li><li>Low R<sub>DS(ON)</sub> Internal Switches : 69mΩ/49mΩ at V<sub>IN</sub> = 5V </li><li>Fixed Frequency : 1MHz </li><li>No Schottky Diode Required </li><li>Internal Compensation </li><li>0.6V Reference Allows Low Output Voltage </li><li>Low Dropout Operation : 100% Duty Cycle </li><li>OCP, UVP, OVP, OTP </li><li>RoHS Compliant and Halogen Free </li></ul></div>
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RT5768A Ordering Information
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<div class="spec-list"><ul class="lv1"><li>Portable Instruments </li><li>Battery Powered Equipment </li><li>Notebook Computers </li><li>Distrib uted Power Systems </li><li>IP Phones </li><li>Digital Cameras </li></ul></div>
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