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Product Spec Banner
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RT8237M PWM 控制器具备高效率、优异的暂态响应与高 DC 输出精度，可满足笔记型电脑中将高电压电池降压以产生低电压 CPU 核心、I/O 与晶片组 RAM 供应电源的需求。固定导通时间 PWM 控制架构可轻松处理宽广的输入 / 输出电压比例，并在维持相对固定切换频率的同时，对负载暂态提供 100ns “instant-on” 响应。RT8237M 透过省去传统电流模式 PWM 中的电流感测电阻，以较低成本实现高效率。其能够驱动非常大型的同步整流 MOSFET，并在轻载条件下进入二极体模拟模式，进一步提升效率。降压转换可让此元件以最高可能效率直接将高电压电池降压。预设频率选项可简化新设计的设计流程。RT8237M 适用于 CPU 核心、晶片组、DRAM 或其他低至 0.7V 的低电压供应电源。RT8237M 采用 WDFN-10L 3x3 封装。建议环境温度范围为 −40°C 至 85°C，接面温度范围为 −40°C 至 125°C。
RT8237M 电路图
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<div class="spec-list"><ul class="lv1"><li>Wide Input Voltage Range: 4.5V to 26V </li><li>Output Voltage Range: 0.7V to 3.3V </li><li>Built-in 0.5% 0.7V Reference Voltage </li><li>Quick Load-Step Response within 100ns </li><li>4700ppm/°C Current Source for Current Limit R<sub>DS(ON)</sub> </li><li>Adjustable Current Limit with Low-side MOSFET </li><li>Four Selectable Frequency Settings </li><li>Soft-Start Control </li><li>Drives Large Synchronous-Rectifier FETs </li><li>Integrated Boot Switch </li><li>Built-In OVP, OCP, and UVP </li><li>Over-Temperature Protection </li><li>Power-Good Indicator </li></ul></div>
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RT8237M 订购信息
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technical-documents
RT8237M
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RT8237M
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<div class="spec-list"><ul class="lv1"><li>Notebook Computers </li><li>CPU Core Supply </li><li>Chipset/RAM Supply Down to 0.7V </li><li>Generic DC-DC Power Regulator </li></ul></div>
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keywordList
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applicationSection
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i18n(support-card-item.ordering.url)
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i18n(support-card-item.sales.title)
i18n(support-card-item.sales.description)
i18n(support-card-item.sales.learn-more-text)
i18n(support-card-item.sales.url)
salesSupportCard
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