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The RT5758 is a high-performance, synchronous step-down DC-DC converter that can deliver up to 9A output current from a 3V to 6.5V input supply. The device integrates low R<sub>DS(ON)</sub> power MOSFETs, accurate 0.6V reference and an integrated diode of bootstrap circuit to offer a very compact solution. <p align="justify">The RT5758 adopts Advanced Constant On-Time (ACOT<sup>TM</sup>) control architecture that provides ultrafast transient response and further reduce the external-component count. In steady states, the ACOT<sup>TM</sup> operates in nearly constant switching frequency over line, load and output voltage ranges and makes the EMI filter design easier. </p><p align="justify">The device offers Independent enable control input pin and power good indicator for easily sequence control. To control the inrush current during the startup, the device provides a programmable soft-start up by an external capacitor connected to the SS pin. Fully protection features are also integrated in the device including the cycle-by-cycle current limit control, UVP, input UVLO and OTP. </p><p align="justify">The RT5758 is available in a thermally enhanced UQFN-13L 3x3 (FC) package.</p>
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<li class="mv5"> Dramatically Fast Transient Response<br /></li><li class="mv5"> Steady 1MHz ±20% Switching Frequency<br /></li><li class="mv5"> 1.5% Reference Voltage<br /></li><li class="mv5"> Advanced COT Control Loop<br /></li><li class="mv5"> Auto PWM/Pulse Skipping Mode for High Light-Load Efficiency<br /></li><li class="mv5"> Optimized for Ceramic Output Capacitors<br /></li><li class="mv5"> 3V to 6.5V Input Voltage Range<br /></li><li class="mv5"> Integrated 12mΩ/8mΩ MOSFETs<br /></li><li class="mv5"> Pre-Biased Start Up<br /></li><li class="mv5"> Adjustable Soft-Start<br /></li><li class="mv5"> Power Good Indicator<br /></li><li class="mv5"> Enable Control<br /></li><li class="mv5"> Over-Current and Over-Temperature Protections<br /></li><li class="mv5"> Under-Voltage Protection with Hiccup Mode</li>
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<li class="mv5"> Mobile Phones and Handheld Devices<br /></li><li class="mv5"> STB, Cable Modem, and xDSL Platform<br /></li><li class="mv5"> WLAN ASIC Power / Storage (SSD and HDD)<br /></li><li class="mv5"> General Purpose for POL LV Buck Converter<br /></li><li class="mv5"> TV</li>
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