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The RT5762 is a simple, easy-to-use, 2A synchronous step-down DC-DC converter with an input supply voltage range from 2.5V to 6V. The device builds in an accurate 0.6V reference voltage and integrates low R<sub>DS(ON)</sub> power MOSFETs to achieve high efficiency in SOT-563 (FC) and UDFN-6L 1.4x1 (FC) packages. <br /><br />The RT5762 adopts Advanced Constant On-Time (ACOT<sup>®</sup>) control architecture to provide an ultrafast transient response with few external components and to operate in nearly constant switching frequency over the line, load, and output voltage range. The RT5762A/C/E operates in automatic PSM that maintains high efficiency during light load operation. The RT5762B/D/F operates in Forced PWM that helps to meet tight voltage regulation accuracy requirements. <br /><br />The RT5762 senses both FETs current for a robust over-current protection. The device features cycle-by-cycle current limit protection which prevents the device from the catastrophic damage in output short circuit, over current or inductor saturation. A built-in soft-start function prevents inrush current during start-up. The device also includes input under-voltage lockout, output under-voltage protection, over-voltage protection (RT5762AL/BL/CL/DL/EL/FL) and over-temperature protection to provide safe and smooth operation in all operating conditions.
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<li class="mv5"> Input Voltage Range from 2.5V to 6V<br /> </li><li class="mv5"> Integrated 100mΩ and 70mΩ FETs<br /> </li><li class="mv5"> 100% Duty Cycle for Lowest Dropout<br /> </li><li class="mv5"> Internal Reference Voltage with 1% Accuracy <br /> </li><li class="mv5"> 1.2MHz Typical Switching Frequency<br /> </li><li class="mv5"> Power Saving Mode for Light Loads (RT5762A/C/E)<br /> </li><li class="mv5"> Advanced Constant On-Time (ACOT<sup>®</sup>) Control<br /> </li><li class="mv5"> Internal Soft Startup (1.5ms)<br /> </li><li class="mv5"> Enable Control Input<br /> </li><li class="mv5"> Power Good Indicator<br /> </li><li class="mv5"> Negative Over-Current Protection (RT5762B/D/F)<br /> </li><li class="mv5"> Fully Protection with UVLO, OVP, UVP, Cycle-by-Cycle Current Limit and OTP<br /> </li><li class="mv5"> RoHS Compliant and Halogen Free</li>
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<li class="mv5"> Mobile Phones and Handheld Devices<br /> </li><li class="mv5"> STB, Cable Modem, and xDSL Platforms<br /> </li><li class="mv5"> WLAN ASIC Power / Storage (SSD and HDD)<br /> </li><li class="mv5"> General Purpose for POL LV Buck Converters</li>
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