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RT6336 系列由高效率同步降压转换器组成,具备 500kHz 伪恒定开关频率,可提供高达 6A 的输出电流。RT6336 与 RT6336 可在 4.5V to 23V 输入电压下运行。RT6336 的输出电压可在 0.6V 至 5.5V 之间设置,而 RT6336 则固定为 3.3V 输出电压。RT6336 的输入电压范围为 5.2V to 23V,且 RT6336 的输出电压固定为 5.1V。RT6336 系列采用 Advanced Constant On-Time (ACOT<sup>®</sup>) 控制架构,可提供超快速瞬态响应,并进一步减少外部元件数量。在稳态下,ACOT<sup>®</sup> 可在输入电压、负载与输出电压范围内以近乎恒定的开关频率运行,并使 EMI 滤波器设计更加容易。通过设置 EN/MODE 引脚的电压,RT6336 系列可在轻载时以二极管仿真模式 (DEM) 或超声波模式 (USM) 运行。USM 可保持运行频率高于 25kHz,从而消除声学噪声。在 DEM 中,RT6336 系列可提供最佳轻载效率,并通过扩频功能改善声学噪声。RT6336 系列提供 Power-Good 指示器,便于系统时序控制。该器件亦集成完整保护功能,包括逐周期电流限制、OVP、UVP、输入 UVLO 与 OTP。上述所有功能均集成于 UQFN-23L 3x3 (FC) 封装中。建议结温为 −40°C 至 125°C。
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<div class="spec-list"><ul class="lv1"><li>l Input Voltage Range - RT6336A/RT6336B and RT6336AH/RT6336BH: 4.5V to 23V - RT6336C/RT6336CH: 5.2V to 23V </li><li>Output Voltage - RT6336A/RT6336AH: 0.6V to 5.5V - RT6336B/RT6336BH: 3.3V - RT6336C/RT6336CH: 5.1V </li><li>6A Continuous Output Current </li><li>Stable with POSCAP and MLCC Capacitors </li><li>Fast Transient Response </li><li>Diode Emulation Mode (DEM) for Power Saving </li><li>Ultrasonic Mode (USM) for Avoiding Acoustic Noise </li><li>Pseudo Constant Switching Frequency 500kHz in CCM </li><li>Internal Power MOSFET Switch 30mΩ (High-Side)and 16mΩ (Low-Side) </li><li>LDO - RT6336B/RT6336BH: 3.3V/100mA - RT6336C/RT6336CH: 5V/100mA </li><li>Current Limit - RT6336A/RT6336AH: Adjustable (5A, 7A, or 9A) - RT6336B/RT6336BH/RT6336C/RT6336CH: 10A </li><li>Output Undervoltage/Overvoltage Protection (UVP/OVP) - RT6336A/RT6336B/RT6336C: Latched Mode UVP/OVP - RT6336AH/RT6336BH/RT6336CH: Hiccup Mode UVP andNon-Latched Mode OVP </li><li>Input Undervoltage Lockout (UVLO) </li><li>Over-Temperature Protection (OTP) - RT6336A/RT6336B/RT6336C: Latched Mode OTP - RT6336AH/RT6336BH/RT6336CH: Non-Latched Mode OTP </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Laptop Computers </li><li>Tablet PCs </li><li>Networking Systems </li><li>Servers </li><li>Personal Video Recorders </li><li>Flat Panel Television and Monitors </li><li>Distributed Power Systems </li></ul></div>
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