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RT5716 是一款高开关频率同步降压转换器,具备 2.3μA 的静态电流。该器件采用纹波式固定导通时间(Ripple-Based Constant-On-Time,RBCOT)控制,可提升负载与线路瞬态响应,并在广泛的负载与输出电容范围内优化性能。RT5716 的输入电压范围为 1.8V 至 5.5V,适用于电池供电应用。通过在 RSEL/MODE 引脚与 GND 之间连接电阻,可提供 16 种可选择的输出电压等级。脉冲频率调制(Pulse Frequency Modulation,PFM)设计可在轻载时维持高效率;而在较高负载条件下,器件会自动切换至 PWM。该器件可提供最高 1A 的负载电流。在关断模式下,供电电流典型值为 55nA,有助于降低功耗。RT5716 提供 TWL-CSP-6B 0.69x1.04 (BSC) 与 WDFN-6L 1.5x1.5 (FC) 封装,是适用于小尺寸应用的最小封装。建议结温范围为 −40°C 至 125°C,环境温度范围为 −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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