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RT5801 系列产品为同步降压转换器，具备 4 相能力，可支持多相与单相运行。这些产品提供广泛的配置选项。RT5801A 提供 2+1+1 相的三路输出，RT5801B 提供 1+1+1+1 相的四路输出。RT5801C 提供 3+1 相的双路输出，RT5801D 提供 4 相的单路输出。最后，RT5801E 提供 2+2 相的双路输出。此灵活性与高集成度使 RT5801 系列适用于各种需要大电流与紧凑电源管理解决方案的应用，例如低功耗处理器、I/O 电源、FPGA 核心电源、DSP 与其他 ASIC。其输入电压范围为 3V 至 5.5V，可兼容各种低电压系统。其可提供最高 20A 峰值电流，并支持 0.4V 至 1.55V 的输出电压。RT5801 系列产品亦提供可编程功能，包括电压等级、电压变化斜率与软启动斜率，均可通过最高 3.4MHz 的 I<sup>2</sup>C 接口控制。此外，这些产品支持远端检测功能，可在重载条件下确保准确的输出电压。其配备中断与故障检测功能，以回报任何错误状态。RT5801 系列产品提供 WL-CSP-54B 2.69x3.92 (BSC) 封装。建议结温范围为 -40°C 至 125°C。
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<li class="mv5"> 4-Phase Buck Converter with Integrated MOSFETs<br /> </li><li class="mv5"> Input Supply Voltage Range: 3V to 5.5V<br /> </li><li class="mv5"> Typical Switching Frequency:<br /> ► 2MHz and 2.2MHz<br /> </li><li class="mv5"> I<sup>2</sup>C Programmable Output Voltage Range: <br /> ► 0.4V to 2.05V<br /> </li><li class="mv5"> (0.4 to 1.55V for 3-phase and 4-phase outputs) Support 5A Output Current Capability Per Phase<br /> </li><li class="mv5"> Differential Remote Sense for Each Output with High Accuracy<br /> </li><li class="mv5"> Fast Transient Response<br /> </li><li class="mv5"> Power Saving Mode Enables Higher Light Load Efficiency<br /> </li><li class="mv5"> Output Dynamic Voltage Scaling (DVS) with Programmable Ramp Up/Down Slew Rate<br /> </li><li class="mv5"> Programmable Soft-Start Function<br /> </li><li class="mv5"> Programmable Startup/Shutdown Sequence<br /> </li><li class="mv5"> Interrupt Function and Fault Detection<br /> </li><li class="mv5"> Watchdog Reset Function Prevents System Hang<br /> </li><li class="mv5"> Input Undervoltage-Lockout (UVLO)<br /> </li><li class="mv5"> Cycle-by-Cycle Current Limit for Each Phase<br /> </li><li class="mv5"> Output Overvoltage/Undervoltage Protection<br /> </li><li class="mv5"> Over-Temperature Protection<br /> </li><li class="mv5"> WL-CSP-54B 2.69x3.92 (BSC) Package</li>
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<li class="mv5"> Home Gateway and Access Point Networks<br /> </li><li class="mv5"> Optical Modules<br /> </li><li class="mv5"> Set-Top Boxes and OTT Devices<br /> </li><li class="mv5"> Storage Systems<br /> </li><li class="mv5"> Surveillance Systems</li>
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