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Product Spec Banner
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The RT6550 is a step-down, controller generating supply voltages for battery-powered systems. It includes Pulse-Width Modulation (PWM) controller adjustable from 2V to 5.5V, and a 5V linear regulator which provides up to 100mA output current. Other features include on-board power-up sequencing, internal soft-start, and soft-discharge output that prevents negative voltage during shutdown. A constant current ripple PWM control scheme operates without sense resistors and provides 100ns response to load transient. The RT6550 is available in the WDFN-10L 3x3 package.</p>
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<div class="spec-list"><ul class="lv1"><li>Support Connected Shutdown Mode for Ultrabook </li><li>CCRCOT Control with 100ns Load Step Response </li><li>PWM Maximum Duty Ratio > 98% </li><li>5V to 25V Input Voltage Range </li><li>2V to 5.5V Output Voltage Range </li><li>5V LDO with 100mA Output Current </li><li>Internal Frequency Setting with 300kHz @ V<sub>IN</sub> =12V </li><li>Internal Soft-Start and Soft-Discharge </li><li>4700ppm/°C R<sub>DS(ON)</sub> Current Sensing </li><li>Independent Switcher Enable Control </li><li>Built-In OVP/UVP/OCP/OTP </li><li>Non-Latch UVLO </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Notebook and Sub-Notebook Computers </li><li>System Power Supplies </li><li>3-Cell and 4-Cell Li+ Battery-Powered Devices </li></ul></div>
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