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RT5716 是一款高開關頻率同步降壓轉換器,具備 2.3μA 的靜態電流。此元件採用漣波式固定導通時間(Ripple-Based Constant-On-Time,RBCOT)控制,可提升負載與線路暫態響應,並在廣泛的負載與輸出電容範圍內最佳化效能。RT5716 的輸入電壓範圍為 1.8V 至 5.5V,適用於電池供電應用。透過在 RSEL/MODE 接腳與 GND 之間連接電阻,可提供 16 種可選擇的輸出電壓位準。脈衝頻率調變(Pulse Frequency Modulation,PFM)設計可在輕載時維持高效率;而在較高負載條件下,元件會自動切換至 PWM。此元件可提供最高 1A 的負載電流。在關斷模式下,供應電流典型值為 55nA,有助於降低功耗。RT5716 提供 TWL-CSP-6B 0.69x1.04 (BSC) 與 WDFN-6L 1.5x1.5 (FC) 封裝,為適用於小尺寸應用的最小封裝。建議接面溫度範圍為 −40°C 至 125°C,環境溫度範圍為 −40°C 至 85°C。
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<div class="spec-list"><ul class="lv1"><li>4MHz Switching Frequency </li><li>2.3μA Operating Quiescent Current </li><li>Input Voltage Range: 1.8V to 5.5V </li><li>16 Selectable Output Voltages by RSEL/MODE Pin and Fixed Output Voltage Without RSEL Setting </li><li>RBCOT Control for Transient Response </li><li>PFM and Force Pulse Width Modulation (FPWM) Mode </li><li>Output Voltage Discharge </li><li>OCP, OTP, and UVLO Protection </li><li>Support up to 1A Loading Current </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Hand-Held Devices </li><li>PCB Area Limited Applications </li><li>Asset Tracking Devices </li><li>Battery Powered Equipment </li><li>Wearable Devices </li><li>Internet of Things </li></ul></div>
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