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The RTQ1741A is a high efficiency single inductor Buck-Boost Converter which can operate with wide input voltage such as battery which is higher or lower than the output voltage and it can supply the load current up to 4A. The maximum peak current in the switches is limited to a typical value of 4.5A. <p align="justify">The RTQ1741A feedback loop is internally compensated for both Buck and Boost operation and it provides seamless transition between Buck and Boost modes and optimal transient response. The RTQ1741A operates at 2.4MHz typical switching frequency in full synchronous operation. </p><p align="justify">The RTQ1741A operates in Pulse Skipped Modulation (PSM) mode for increasing efficiency during low power RF transmission modes. The Power Save Mode can be disabled, forcing the RTQ1741A to operate at a fixed switching frequency operation at 2.4MHz. The RTQ1741A can also be synchronized with external frequency from 2.2MHz to 2.6MHz. The output voltage is programmable using an external resistor divider.</p>
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  • 输入电压范围：1.8V~5.5V
  • 输出电压可调范围：1.8V~5.5V
  • VIN > 3.6V, VOUT = 3.3V时的最大负载能力为3A
  • 使用轻载节能模式提高效率
  • 固定工作频率为2.4MHz，可用2.2MHz~2.6MHz信号同步其工作
  • 最高效率可达96%
  • 输入电流限制
  • 内部补偿
  • 符合RoHS规范，不含卤素
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移动电话 便携式硬盘 个人数字助理
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