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The RT9203 is a dual-output power controllers designed for high performance graphics cards and personal computers. The IC integrates a synchronous buck controller, a linear controller and protection functions into a small 8-pin package. The RT9203 uses an internal compensated voltage mode PWM control for simplying design. An internal 0.8V reference allows the output voltage to be precisely regulated to meet low output voltage requirement. A fixed 300kHz oscillation frequency reduces the component size for saving board area. </p>The RT9203 also features over voltage protection (OVP) and under voltage lock-out (UVLO).</p>
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<div class="spec-list"><ul class="lv1"><li>Operates at 5V </li><li>0.8V Internal Reference </li><li>Drives Two N-MOSFET </li><li>Voltage Mode PWM Control </li><li>Fast Transient Response </li><li>Fixed 300kHz Oscillator Frequency </li><li>Dynamic 0 to 100% Duty Cycle </li><li>Internal PWM Loop Compensation </li><li>Internal Soft-Start </li><li>Adaptive Non-Overlapping Gate Driver </li><li>Over-Voltage Protection Uses Lower MOSFET </li><li>RoHS Compliant and 100% Lead (Pb)-Free </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>PC Motherboard </li><li>Cable Modems, Set-Top-Box, and DSL Modems </li><li>DSP and Core Communications Processor Supplies </li><li>Memory Power Supplies </li><li>Personal Computer Peripherals </li><li>Industrial Power Supplies </li><li>5V Input DC-DC Regulators </li><li>Low Voltage Distributed Power Supplies </li><li>Graphic Cards </li></ul></div>
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