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The RT8055 is a high efficiency synchronous, step-down DC/DC converter. Its input voltage range is from 2.6V to 5.5V and provides an adjustable regulated output voltage from 0.8V to 5V while delivering up to 3A of output current.<br />The internal synchronous low on-resistance power switches increase efficiency and eliminate the need for an external Schottky diode. The switching frequency is set by an external resistor. The 100% duty cycle provides low dropout operation extending battery life in portable systems. Current mode operation with external compensation allows the transient response to be optimized over a wide range of loads and output capacitors.<br />The RT8055 is operated in forced continuous PWM Mode which minimizes ripple voltage and reduces the noise and RF interference.<br />The RT8055 is available in the WDFN-10L 3x3 and SOP-8 (Exposed Pad) packages.</p>
RT8055 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 : 100mΩ </li><li>Programmable Frequency : 300kHz to 2MHz </li><li>No Schottky Diode Required </li><li>0.8V Reference Voltage Allows for Low Output Voltage </li><li>Forced Continuous Mode Operation </li><li>100% Duty Cycle Operation </li><li>Input Over Voltage Protection </li><li>RoHS Compliant and Halogen Free </li></ul></div>
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RT8055 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>Distributed Power Systems </li><li>IP Phones </li><li>Digital Cameras </li><li>3G/3.5G Data Card </li></ul></div>
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