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Product Spec Banner
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RTQ2807A 是一款高效能同步降压转换器，可在 3.5V 至 17V 的宽输入供应电压范围内提供高达 6A 的输出电流。此元件整合低 R<sub>DSON</sub> 功率 MOSFET、在完整工作接面温度范围内精准的 0.9V ± 1% 参考电压，以及用于自举电路的整合式二极体，可提供非常精简的解决方案。<br />RTQ2807A 采用进阶固定导通时间 (ACOT<sup>®</sup>) 控制架构，可提供优异的暂态效能，并减少外部元件数量。在稳态下，ACOT<sup>®</sup> 可在不同输入电压、负载与输出电压范围内以接近固定的切换频率运作，使 EMI 滤波器设计更加容易。<br />此元件提供多种功能，可提升设计灵活性。可选择的切换频率、电流限制位准与 PWM 运作模式，使 RTQ2807A 易于用于广泛应用。亦提供独立启用控制输入脚位与电源良好指示器，以简化时序控制。此元件可透过连接至 SS/TR 脚位的外部电容实现可程式化软启动时间，以控制启动期间的突入电流。<br />RTQ2807A 提供完整保护功能，包括输入欠压锁定、输出欠压保护、输出过压保护、过电流保护与过温保护。RTQ2807A 采用具散热增强的 WQFN-14TL 2x3 (FC) 封装。建议接面温度范围为 −40°C 至 150°C。
RTQ2807A 电路图
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<div class="spec-list"><ul class="lv1"><li>Wide Input Voltage Range <ul class="lv2"> <li></li><li>2.7V to 17V with External 3.3V VCC Bias </li><li>3.5V to 17V with Internal VCC Bias </li></ul> </li><li>Output Voltage from 0.9V to 5.5V </li><li>0.9V ± 1% Voltage Reference Over a -40°C to 150°C Junction Temperature Range </li><li>ACOT<sup>®</sup> Control for Excellent Transient Performance </li><li>Stable with Ceramic Output Capacitors </li><li>Selectable FCCM or PSM Operation at Light Load </li><li>Selectable Operation Switching Frequency (660KHz/1100KHz/2200KHz) </li><li>Latch-Off for OCP, OVP, UVP, UVLO, and OTP </li><li>Power-Good Indicator </li><li>Enable Control </li><li>Programmable Soft-Start Time with a Default of 1.5ms </li><li>Programmable Valley Current Limit Level </li><li>Monotonic Start-Up into Pre-Biased Outputs </li><li>Output Voltage Tracking </li><li>Small 14-Lead WQFN (2x3) (FC) Package (Pin Pitch 0.5mm) </li></ul></div>
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RTQ2807A 订购信息
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<div class="spec-list"><ul class="lv1"><li>Servers, Storage, and Network Equipment </li><li>Telecom Infrastructure </li><li>Point of Load (POL) Power Modules </li><li>High Density DC-DC Converters </li></ul></div>
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