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The RT5762 is a simple, easy-to-use, 2A synchronous step-down DC-DC converter with an input supply voltage range from 2.5V to 6V. The device builds in an accurate 0.6V reference voltage and integrates low R<sub>DS(ON)</sub> power MOSFETs to achieve high efficiency in SOT-563 (FC) and UDFN-6L 1.4x1 (FC) packages. <br /><br />The RT5762 adopts Advanced Constant On-Time (ACOT<sup>&reg;</sup>) control architecture to provide an ultrafast transient response with few external components and to operate in nearly constant switching frequency over the line, load, and output voltage range. The RT5762A/C/E operates in automatic PSM that maintains high efficiency during light load operation. The RT5762B/D/F operates in Forced PWM that helps to meet tight voltage regulation accuracy requirements. <br /><br />The RT5762 senses both FETs current for a robust over-current protection. The device features cycle-by-cycle current limit protection which prevents the device from the catastrophic damage in output short circuit, over current or inductor saturation. A built-in soft-start function prevents inrush current during start-up. The device also includes input under-voltage lockout, output under-voltage protection, over-voltage protection (RT5762AL/BL/CL/DL/EL/FL) and over-temperature protection to provide safe and smooth operation in all operating conditions.
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  • 输入电压范围：2.5V~6V
  • 集成 100mΩ/70mΩ MOSFET 功率开关
  • 100% 占空比支持低压差运行
  • 内部参考电压精度：1%
  • 典型工作频率：1.2MHz
  • 轻载时，RT5762A/C/E 以节能模式运行
  • ACOT® 控制架构
  • 内置 1.5ms 软启动时间
  • 使能控制
  • Power Good 指示
  • 负电流过流保护（RT5762B/D/F）
  • 输入欠压锁定保护、过压保护、欠压保护、逐周期电流限制保护和过热保护
  • 符合 RoHS 规范，不含卤素
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移动电话和手持设备 机顶盒、调制解调器等通讯设备 网络设备和存储装置 通用负载点低压调节器
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