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RT9472/D 是一款高度集成的 3A 开关式电池充电管理与系统电源路径管理器件，适用于单节锂离子与锂聚合物电池。低阻抗电源路径可优化开关式运行效率、缩短电池充电时间，并在放电阶段延长电池寿命。具充电与系统设置的 I<sup>2</sup>C 串行接口，使此器件成为真正灵活的解决方案。
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<li class="mv5"> High Efficiency, 1.5MHz, Synchronous Switch-Mode Buck Charger<br />► 92% Charge Efficiency at 2A with 5V Input and 3.8V Battery<br />► Support 3.9V to 13.5V Input Voltage Range<br />► Average Input Current Regulation (AICR)<br />► Minimum Input Voltage Regulation (MIVR)<br />► Minimum Input Voltage Regulation Track (MIVR Track)<br />► Charge Current Regulation (CCR)<br />► Charge Voltage Regulation (CVR)<br />► Charge Voltage Regulation Track (CVR Track)<br />► Junction Thermal Regulation (JTR)<br /></li><li class="mv5"> Supports USB On-The-Go (OTG)<br />► 92% Boost Efficiency at 1A with 3.8V Battery and 5.15V Output<br />► OTG Current Limit Regulation (OCLR) <br />► OTG Voltage Limit Regulation (OVLR) <br /></li><li class="mv5"> Protection <br />► Over-Temperature Protection (OTP)<br />► VBUS Over-Voltage Protection (VBUS OVP)<br />► Battery Over-Voltage Protection (VBAT OVP)<br />► System Over-Voltage Protection (VSYS OVP)<br />► System Under-Voltage Protection (VSYS UVP)<br />► System Over-Load Protection (VSYS OLP)<br />► Cycle-by-Cycle Over-Current Protection (OCP)<br />► OTG Low Battery Protection (OTG LBP)</li>
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<li class="mv5"> Smart Phone/Tablet PC<br /></li><li class="mv5"> Personal Information Appliances<br /></li><li class="mv5"> Portable Device and Accessory</li>
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