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RT8159 是一款双通道 DC/DC 电源控制器，专为具备 12V 电源输入的双输出应用而设计。此元件整合一组同步整流降压 PWM 控制器及一组低压差线性稳压器控制器，可提供完整且高效率的多路电源解决方案。 其中，降压 PWM 控制器采用电压模式控制架构，并支援外部补偿设计，以提供良好的稳定度与动态响应性能。产品内建高、低侧 MOSFET 闸极驱动器及自举二极体，可有效减少外部元件数量并简化电路设计。MOSFET 驱动器可提供 12V 闸极驱动电压，使高侧及低侧 MOSFET 均能维持高效率运作，进一步提升整体电源转换效率。 线性稳压器控制器则可驱动外部 N 型 MOSFET，适用于低功率应用需求，并提供弹性的电源配置能力。 RT8159 还具备多项实用功能，包括可调式振荡器频率、内建软启动功能、快速暂态响应、欠压保护、启用/停用控制，以及针对 PWM 输出的过电流保护功能，可提升系统可靠性与操作安全性。 凭藉高度整合的架构设计与完整功能，RT8159 可为使用者提供体积精简、高效率且具成本效益的电源管理解决方案。
RT8159 电路图
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<div class="spec-list"><ul class="lv1"><li>Single 12V Bias Supply </li><li>Support Dual Channel Power Conversion <ul class="lv2"> <li></li><li>Synchronous Rectified Buck PWM Controller </li><li>Linear Regulator Controller </li></ul> </li><li>Both Controllers Drive Low Cost N-MOSFETs </li><li>Adjustable Oscillator Frequency up to 1MHz with 230kHz Free-Running Frequency </li><li>Enable/ Disable Control </li><li>Integrated MOSFET Drivers and Bootstrap Diode </li><li>Internal Reference Voltage Accuracy <ul class="lv2"> <li></li><li>PWM Controller : ±1% </li><li>LDO Controller : ±2% </li></ul> </li><li>External Compensation for PWM Controller </li><li>Under Voltage Protection for Both Outputs </li><li>Low Side MOSFET R<sub>DS(ON)</sub> Current Sense </li><li>RoHS Compliant and Halogen Free </li></ul></div>
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RT8159 订购信息
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RT8159
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<div class="spec-list"><ul class="lv1"><li>Graphic Card GPU, Memory Core Power </li><li>Graphic Card Interface Power </li><li>Motherboard, Desktop and Servers Chipset and Memory Core Power </li><li>IA Equipments </li><li>Telecomm Equipments </li><li>High Power DC/DC Regulators </li></ul></div>
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