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The RT7238B/C/D/E is an advanced constant on-time (ACOT<sup>TM</sup>) mode synchronous step-down converter. The main control loop of RT7238B/C/D/E using an advanced constant on-time (ACOT<sup>TM</sup>) mode control which provides a very fast transient response. The RT7238B/C/D/E operates from 8V to 23V input voltage. For the RT7238D, the output voltage can be adjusted between 0.6V to 5V.
/content/dam/richtek-eds/resources/product-specifications/rt72/rt7238b/rt7238c/rt7238d/rt7238e/images/circuit/00372rkbzf.GIF
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<li class="mv5"> Advanced Constant On-Time (ACOT) Control<br /></li><li class="mv5"> 8V to 23V (RT7238B/C/D/E) Input Voltage Range @ 8A Output Current<br /></li><li class="mv5"> ACOT<sup>TM</sup> Mode Performs Fast Transient Response<br /></li><li class="mv5"> ACOT<sup>TM</sup> Architecture to Enable all MLCC Output Capacitor Usage<br /></li><li class="mv5"> Fixed 500kHz Switching Frequency<br /></li><li class="mv5"> High Efficient Internal Power MOSFET Switch<br />► 27mΩ (High-Side) and 10mΩ (Low-Side) <br /></li><li class="mv5"> Adjustable Output Voltage from 0.6V to 5V (RT7238D)<br /></li><li class="mv5"> Fixed 3.3V (RT7238B/D) or 5V (RT7238C/E) LDO Output Supplies 70mA<br /></li><li class="mv5"> Pre-biased Soft-Start<br /></li><li class="mv5"> Cycle-by-Cycle Over-Current Protection<br /></li><li class="mv5"> Input Under-Voltage Lockout<br /></li><li class="mv5"> Thermal Shutdown <br /></li><li class="mv5"> Output Over/Under-Voltage Protection</li>
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<li class="mv5"> Industrial and Commercial Low Power Systems<br /></li><li class="mv5"> Computer Peripherals<br /></li><li class="mv5"> LCD Monitors and TVs<br /></li><li class="mv5"> Green Electronics/Appliances<br /></li><li class="mv5"> Point of Load Regulation for High-Performance DSPs, FPGAs, and ASICs</li>
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