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The RT8692 is a 2/1 phase synchronous Buck PWM controller optimized for high performance graphic microprocessor. The IC integrates a Constant-On-Time (COT) PWM controller, two MOSFET drivers with internal bootstrap diodes, as well as channel current balance and protection functions including overvoltage protection (OVP), undervoltage protection (UVP), current limit, and thermal shutdown into the WQFN-20L 3x3 package.<br /><br />The RT8692 adopts R<sub>DS(ON)</sub> current sensing technique. Current limit is accomplished through continuous inductor current sensing, while R<sub>DS(ON)</sub> current sensing is used for accurate channel current balance. Using the method of current sampling utilizes the best advantages of each technique.<br /><br />The RT8692 features external reference input control, of which the feedback voltage is regulated and tracks external input reference voltage. Other features include adjustable switching frequency, dynamic phase number control, internal soft-start, power good indicator, and enable functions.
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  • 两相 PWM 控制器
  • 输出电压调节范围：0.3V-2V
  • 1% 精度2V参考电压
  • 差分远程电压感测
  • 工作状态指示
    ►1P-CCM/2P-CCM/1P-DEM/2P-DEM
  • 内嵌两组 MOSFET 驱动器，包含自举二极管
  • 外部参考输入
  • 动态相数控制
  • 无损 RDS(ON) 电流检测，用于电流平衡
  • 内置软启动，外部可调节
  • 电流限制阈值可调
  • 开关切换频率可调
  • UVP/OVP
  • 贯通保护和无短脉冲技术
  • 热关机保护
  • Power Good 指示 (EN to PG high = 500μs)
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桌面计算机内存、VTT 供电 芯片组/RAM电源 通用 DC-DC 电源调节器
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