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RT6323 是一款高效率同步降压转换器,具备 600kHz 伪恒定切换频率,可提供高达 8A 连续输出电流与 10A 峰值输出电流。RT6323 可在 3V to 23V 输入电压下运作。其支援 2-bit VID 与低功耗模式 (LPM#),可动态改变输出电压,以满足 VDD_MEM 应用需求。RT6323 采用先进恒定导通时间 (ACOT<sup>®</sup>) 控制架构,可提供超快速暂态响应,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切换频率运作,并简化 EMI 滤波器设计。RT6323 在轻载条件下以二极体模拟模式 (DEM) 运作,可提供最佳轻载效率,并透过展频功能降低声学噪音。RT6323 提供 Power-Good 指示器,便于系统时序控制。其亦整合完整保护功能,包括逐周期电流限制、OVP、UVP、输入 UVLO 与 OTP。所有功能皆整合于 VQFN-13L 2x3 (FC) 封装中。建议接面温度范围为 −40°C 至 125°C。
RT6323 电路图
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<div class="spec-list"><ul class="lv1"><li>Input Voltage Range: 3V to 23V </li><li>Output Voltage: 0.65V/0.78V/0.85V/0.95V (VDD_MEM 2-Bit VID Control) </li><li>8A Continuous and 10A Peak Output Current </li><li>Pseudo Constant Switching Frequency 600kHz in CCM </li><li>Internal Power MOSFET Switch 33mΩ (High-Side) and 12mΩ (Low-Side) </li><li>Stable with POSCAP and MLCC Capacitors </li><li>Fast Transient Response </li><li>Diode Emulation Mode (DEM) for Power Saving </li><li>Low Power Mode (LPM) for Power Saving </li><li>Overcurrent-Limit Protection (OCP) </li><li>Output Undervoltage/Overvoltage Protection (UVP/OVP) </li><li>Input Undervoltage-Lockout (UVLO) </li><li>Over-Temperature Protection (OTP) </li></ul></div>
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RT6323 订购信息
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<div class="spec-list"><ul class="lv1"><li><p style="margin-left: 10pt; text-indent: -10pt" class="Applications"><!--[if !supportLists]--><span style="font-size: 6pt; font-family: Wingdings">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman'"> </span></span><!--[endif]--><span>Laptop Computers</span></p><p style="margin-left: 10pt; text-indent: -10pt" class="Applications"><!--[if !supportLists]--><span style="font-size: 6pt; font-family: Wingdings">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman'"> </span></span><!--[endif]--><span>Tablet PCs</span></p><p style="margin-left: 10pt; text-indent: -10pt" class="Applications"><!--[if !supportLists]--><span style="font-size: 6pt; font-family: Wingdings">l<span style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-variant-position: normal; font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman'"> </span></span><!--[endif]--><span>Distributed Power Systems</span></p> </li></ul></div>
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