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RT8108 系列产品是单相同步 Buck PWM 控制器,设计用于提供高精度、可程式设计的低压输出,内部参考电压为 0.6V 或 0.8V。RT8108 系列产品使用单回路电压模式 PWM 控制架构以获得快速的瞬态回应。因为具有高驱动能力,适合于大电流输出的应用。它们的固定工作频率为 200kHz / 300kHz / 500kHz,可以使用小尺寸的电感和电容以节省 PCB 空间和成本。RT8108 系列产品都集成了完善的保护功能,如 OCP、OVP、OTP 和 UVP,采用的封装为 SOP-8 和 SOP-8(含外露式散热焊盘)。
RT8108 电路图
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<div class="spec-list"><ul class="lv1"><li>5V~12V 的单工作电压 </li><li>驱动2只 MOSFET </li><li>电压模式 PWM 控制器,使用外部回授回路补偿 </li><li>MOSFET R<sub>DS(ON)</sub> 电流检测方式实现过流保护 </li><li>有独立开/关控制端 </li><li>0~90% 的责任周期 </li><li>快速瞬态回应 </li><li>符合 RoHS 规范,不含卤素 </li></ul></div>
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RT8108 订购信息
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<div class="spec-list"><ul class="lv1"><li>PC 主机板和台式伺服器 </li><li>图形卡 </li><li>开关电源 </li><li>通用 DC/DC 转换器 </li></ul></div>
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