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RT5801 系列產品為同步降壓轉換器，具備 4 相能力，可支援多相與單相運作。這些產品提供廣泛的配置選項。RT5801 提供 2+1+1 相的三路輸出，RT5801 提供 1+1+1+1 相的四路輸出。RT5801 提供 3+1 相的雙路輸出，RT5801 提供 4 相的單路輸出。最後，RT5801 提供 2+2 相的雙路輸出。此彈性與高整合度使 RT5801 系列適用於各種需要大電流與精簡電源管理解決方案的應用，例如低功耗處理器、I/O 電源、FPGA 核心電源、DSP 與其他 ASIC。其輸入電壓範圍為 3V 至 5.5V，可相容於各種低電壓系統。其可提供最高 20A 峰值電流，並支援 0.4V 至 1.55V 的輸出電壓。RT5801 系列產品亦提供可程式功能，包括電壓位準、電壓變化斜率與軟啟動斜率，皆可透過最高 3.4MHz 的 I<sup>2</sup>C 介面控制。此外，這些產品支援遠端感測功能，可在重載條件下確保準確的輸出電壓。其配備中斷與故障偵測功能，以回報任何錯誤狀態。RT5801 系列產品提供 WL-CSP-54B 2.69x3.92 (BSC) 封裝。建議接面溫度範圍為 -40°C 至 125°C。
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<div class="spec-list"><ul class="lv1"><li>4-Phase Buck Converter with Integrated MOSFETs </li><li>Input Supply Voltage Range: 3V to 5.5V </li><li>Typical Switching Frequency: <ul class="lv2"> <li></li><li>2MHz and 2.2MHz </li></ul> </li><li>I<sup>2</sup>C Programmable Output Voltage Range: <ul class="lv2"> <li></li><li>0.4V to 2.05V </li></ul> </li><li>(0.4 to 1.55V for 3-phase and 4-phase outputs) Support 5A Output Current Capability Per Phase </li><li>Differential Remote Sense for Each Output with High Accuracy </li><li>Fast Transient Response </li><li>Power Saving Mode Enables Higher Light Load Efficiency </li><li>Output Dynamic Voltage Scaling (DVS) with Programmable Ramp Up/Down Slew Rate </li><li>Programmable Soft-Start Function </li><li>Programmable Startup/Shutdown Sequence </li><li>Interrupt Function and Fault Detection </li><li>Watchdog Reset Function Prevents System Hang </li><li>Input Undervoltage-Lockout (UVLO) </li><li>Cycle-by-Cycle Current Limit for Each Phase </li><li>Output Overvoltage/Undervoltage Protection </li><li>Over-Temperature Protection </li><li>WL-CSP-54B 2.69x3.92 (BSC) Package </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Home Gateway and Access Point Networks </li><li>Optical Modules </li><li>Set-Top Boxes and OTT Devices </li><li>Storage Systems </li><li>Surveillance Systems </li></ul></div>
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