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RT8230A/B/C/D/E 是双通道 Buck 控制器，用于为电池供电的系统生成稳定的电压。其中包含两组输出电压 2V~5.5V 可调的 PWM 控制器和两组固定 5V/3.3V 输出的线性稳压器，每组线性稳压器可输出最大 100mA 的电流，5V 线性稳压器为 PWM 驱动器提供电源。RT8230A/B/C/D/E 具有片内上电时序管理功能、Power Good 输出、内部软启动功能，还有输出端关机软放电功能避免负电压的出现。</br>它采用固定导通时间控制技术，没有电流检测电阻，对负载瞬变具有 100ns 快速响应能力。为了消除音频应用噪声，还具有超声工作模式，可将工作频率维持在 25kHz 以上。为了获得最高的转换效率，它在轻载条件下会自动进入二极管仿真模式工作。其封装为 WQFN-20L 3x3。
/content/dam/richtek-eds/resources/product-specifications/rt82/rt8230a/rt8230b/rt8230c/rt8230d/rt8230e/images/circuit/02966pnhsq.GIF
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<li class="mv5"> 最高责任周期达 96%</li><li class="mv5"> CCRCOT 控制技术，具备 100ns 步阶负载响应能力</li><li class="mv5"> 5V~25% 输入电压范围</li><li class="mv5"> 两路可调输出电压范围：<br>►CH1：2V~5.5V<br>►CH2：2V~4V</li><li class="mv5"> 3.3V/5V LDO 输出能力：100mA</li><li class="mv5"> 3.3V LDO 输出电压精度 1%</li><li class="mv5"> 经 TON 设定频率可调</li><li class="mv5"> 4700ppm/<sub> </sub>°C R<sub>DS(ON)</sub> 电流检测</li><li class="mv5"> 可调电流限制与使能控制使用同一端子</li><li class="mv5"> 内建软启动和阮芳殿功能</li><li class="mv5"> 热关机保护</li><li class="mv5"> 符合 RoHS 规范，不含卤素</li>
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<li class="mv5"> 笔记本电脑</li><li class="mv5"> 2~4芯锂离子电池供电设备</li>
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