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RT5028B是高集成度的高性能 PMIC，其中包含了4路同步 Buck DC/DC 转换器和8路LDO，可形成完整的工业用电子设备电源系统。</br>为了进行时序控制，RT5028B内部集成了 EEPROM 用于存储相关的信息。它还有 I<sup>2</sup>C 接口、 IRQ 、电源开/关等信号，可和主机之间进行交流。
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<li class="mv5"> 工作电压范围：3.3V~5.5V</li><li class="mv5"> Buck 转换器<br />► V<sub>IN</sub> 范围：3.3V~5.5V <br />► 负载能力：2.5A/2.5A/1.6A/2A <br />► 500kHz~2MHz 可程序设计频率范围 <br />► 可经 I<sup>2</sup>C 接口对输出电压进行程序设计 <br />► 可经 I<sup>2</sup>C 接口选择工作模式（强制 PWM 或自动 PWM/PSM）<br />► 可经 I<sup>2</sup>C 接口选择输出放电模式</li><li class="mv5"> 线性稳压器（LDO）V<sub>IN</sub> 范围：2.5V~5.5V <br />► 负载能力：300mA <br />► 可经 I<sup>2</sup>C 接口对输出电压进行程序设计</li><li class="mv5"> 内嵌 32 字节 EEPROM 用于工厂设定<br />►有 MTP 引脚可用于写保护</li><li class="mv5"> 时序可由 I<sup>2</sup>C 接口进行控制，也可由 EN 引脚进行控制</li><li class="mv5"> 多种保护功能<br />►支持快速模式的 I<sup>2</sup>C 接口，速度可达 400kb/s</li>
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