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Product Spec Banner
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RT6248B 是简单易用的 8A 同步 Buck 转换器，输入电压范围为 4.5V~18V，内建 0.6V 参考电压源，集成低 R<SUB>DS(ON)</SUB> MOSFET 功率开关，使用晶核倒装的 UQFN-12HL 3x3 封装，以改进型固定导通时间 （ACOT<sup>®</sup>） 控制架构提供超快的瞬态回应速度，周边元件少，在各种运作条件下都具有几乎不变的开关工作频率。RT6246B 采用强制 PWM 工作模式，可满足严格的电压调节精度要求。它对上、下桥的电流都进行检测以获得强劲的过流保护性能，每个周期都进行的过流保护可最大程度地防范输出端短路、过流和电感饱和等现象可能导致的灾难性损害。内建的软启动功能可避免启动期间出现的浪涌电流。它还具有输入欠压锁定保护、输出欠压/过压保护、过热保护 (热关机) 等安全机制，确保其在各种工作条件下均可稳定运行。RT6248B 以 UQFN-12HL 3x3 (FC) 封装供货。
RT6248B 电路图
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buttonFindOtherCategory
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width
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<div class="spec-list"><ul class="lv1"><li>8A 转换器，内置 24mΩ/12mΩ R<sub>DS(ON)</sub> 功率开关 </li><li>输入电压范围：4.5V~18V </li><li>输出电压范围：0.6V~6V </li><li>改进型固定导通时间（ACOT<sup>®</sup>）控制架构 <ul class="lv2"> <li></li><li>超快速瞬态回应 </li><li>无需外部补偿 </li><li>针对低 ESR 陶瓷输出电容进行了优化 </li></ul> </li><li>回馈参考电压为 0.6V±1% </li><li>固定开关工作频率：500kHz </li><li>内建固定软起动时间（典型值为 0.4ms） </li><li>输入欠压锁定保护 (UVLO) </li><li>打嗝模式的输出欠压保护 </li><li>可自动恢复的输出过压保护 </li><li>采用晶核倒装的 UQFN-12HL 3x3 (FC) 封装 </li></ul></div>
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productFeatureSection
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i18n(tabs.ordering-information.title)
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orderingInformationSection
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RT6248B 订购信息
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productSection
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RT6248B
technicalDocumentMultipleTable
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RT6248B
designToolMultipleTable
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<div class="spec-list"><ul class="lv1"><li>工商业低功率系统 </li><li>电脑周边 </li><li>液晶显示器和电视机 </li><li>节能电器设备 </li><li>高性能 DSP、FPGA 和 ASIC 供电 </li><li>网路通信设备 </li></ul></div>
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supportCards
i18n(support-card-item.technical-support.title)
i18n(support-card-item.technical-support.description)
i18n(support-card-item.technical-support.learn-more-text)
i18n(support-card-item.technical-support.url)
technicalSupportCard
i18n(support-card-item.ordering.title)
i18n(support-card-item.ordering.description)
i18n(support-card-item.ordering.learn-more-text)
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i18n(support-card-item.sales.title)
i18n(support-card-item.sales.description)
i18n(support-card-item.sales.learn-more-text)
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