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The RT7290A is a synchronous Buck converter with Advanced Constant On-Time (ACOT<sup>&reg;</sup> ) mode control. The main control loop of the RT7290A uses an ACOT<sup>&reg;</sup> mode control which provides a very fast transient response with no external compensators. The RT7290A operates from 5V to 23V input voltage, provides a 3.3V LDO and a 300kHz CLK to drive an external charge pump. OCP, UVP and OVP are included in the RT7290A. This IC also provides a 1.5ms internal soft-start function and an open-drain power good indicator.
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  • 输入电压范围：5V~23V
  • PWM 工作频率：500kHz
  • 采用 ACOT® 控制架构，瞬态响应速度快
  • 集成 31mΩ/20mΩ MOSFET 功率开关
  • 稳定配合 MLCC 输出电容
  • 1.5ms 内置软启动
  • 内建 OVP/UVP/OCP
  • Power Good 指示
  • 300kHz 固定时钟信号支持电荷泵工作
  • 各通道独立的使能信号
  • 过热关机保护
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