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RT9367 是用于手机背光和摄像头应用的集成化电源解决方案，其中集成了一个电荷泵 LED 驱动器和两个低压差线性稳压器，通过将其 ENA 端拉低可使其进入关机状态。RT9367 的 LED 驱动部分由电荷泵和使电流一致的恒流源组成，可以驱动4只 LED ，每只 LED 的电流可达 25mA 。它通过采用 x1/x1.5/x2 等不同的电荷泵工作模式和低压差电流源维持高 LED 驱动效率，用户可通过 I<sup>2</sup>C 接口对内部的5位 DAC 进行控制以实现32级电流调节，最终实现亮度控制。RT9367 还包含了两个低噪声、低压差的线性稳压器，每个的输出电流能力可达 300mA ，其输出电压可通过 I<sup>2</sup>C 接口进行设定，其电压设定范围为 1.1V~3.3V，输出电压精度可达3%。在 300mA 负载电流下，稳压器的最小压降可达 250mV 。这些稳压器具有电流限制和输出短路热折回保护功能。
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<div class="spec-list"><ul class="lv1"><li>手机背光和摄像头电源供应的集成化方案 </li><li>I<sup>2</sup>C 接口可程序设计的32级调光控制能力和独立通道开/关能力 </li><li>过热保护 </li><li>资料寄存器在加电期间复位 </li><li>关机期间电流消耗仅 1μA ，接口处于开放状态 </li><li>电荷泵 LED 驱动器 </li><li>全锂离子电池电压范围内的峰值效率可达93% </li><li>全锂离子电池电压范围内的平均效率可达85% </li><li>可驱动多达4只白光 LED </li><li>各通道可输出 25mA 电流，总电流达 100mA </li><li>60mV 恒流源压差 </li><li>1%的电流精度 </li><li>0.7%的电流一致性 </li><li>电荷泵工作模式在 x1/x1.5/x2 之间自动转换 </li><li>低输入端噪声和 EMI 问题 </li><li>5.5V 过压保护 </li><li>开机、模式转换冲击保护 </li><li>1MHz 随机频率振荡器 </li><li>0.1μA 低停机电流 </li><li>双路低压差稳压器 </li><li>宽工作电压范围 </li><li>低输出噪声 </li><li>无需使用噪声旁路电容 </li><li>线路/负载瞬变时的快速响应能力 </li><li>温度系数低 </li><li>两路输出能力均为 300mA </li><li>输出电压精度：3% </li><li>过流保护 </li><li>短路热折回保护 </li><li>0.1μA 低停机电流 </li><li>符合 RoHS 规范，不含卤素 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Camera Phone, Smart Phone </li><li>White LED Backlighting, CMOS Sensor Input Supply </li></ul></div>
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