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RTQ2812 是一款高性能的同步降压转换器,能够在3.5V至17V的宽输入电压范围内提供高达12A的输出电流。该设备集成了低 R<SUB>DS(ON)</SUB> 功率 MOSFET、在整个工作结温范围内精确的0.6V ±1%参考电压,以及为引导电路集成的二极管,提供了非常紧凑的解决方案。</br>RTQ2812 采用先进的恒定开启时间(ACOT<sup>®</sup>)控制架构,提供出色的瞬态性能,并减少了外部组件的数量。在稳态条件下,ACOT<sup>®</sup> 可以在线路、负载和输出电压范围内几乎保持恒定的开关频率,使得EMI滤波器设计更加简单。</br>该设备提供多种功能,增加了设计的灵活性。可选择的开关频率、电流限制水平、PWM操作模式使得RTQ2812在广泛的应用范围内易于使用。还提供了独立的使能控制输入引脚和电源良好指示器,便于轻松进行序列控制。通过连接到SS/TR引脚的外部电容,设备提供了可编程的软启动,以控制启动期间的涌入电流。</br>RTQ2812 提供完整的保护功能,包括输入欠压锁定、输出欠压保护、输出过压保护、过电流保护和热关断。RTQ2812 提供在热增强的 WQFN-21TL 3x4 (FC) 封装中。</br>建议结面温度范围为 -40°C 至 150°C
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<div class="spec-list"><ul class="lv1"><li>宽输入电压范围2.7V至17V,外部3.3V VCC偏置3.5V至17V,内部VCC偏置 </li><li>输出电压从0.6V至5.5V </li><li>0.6V ± 0.5%电压参考,在0°C至70°C结温范围内 </li><li>0.6V ± 1%电压参考,在-40°C至150°C结温范围内 </li><li>ACOT<sup>®</sup> 控制,提供卓越的瞬态性能 </li><li>陶瓷输出电容稳定 </li><li>轻载时可选择FCCM或PSM操作 </li><li>可选择的操作开关频率(600KHz/800KHz/1MHz) </li><li>非锁存的OCP、UVP、UVLO和OTP故障,OVP锁存关闭 </li><li>差分远程感应电压,提高输出精度 </li><li>电源良好指示器 </li><li>使能控制 </li><li>可编程软启动时间,默认1ms </li><li>可编程谷值电流限制水平 </li><li>预偏置输出的单调启动 </li><li>输出电压跟踪 </li><li>小型21T-Lead WQFN(3x4)(FC)封装 </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>服务器、存储和网络设备 </li><li>电信基础设施 </li><li>点负载(POL)电源模块 </li><li>高密度直流-直流转换器 </li></ul></div>
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