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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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  • 5V to 23V Input Voltage Range
  • PWM Frequency Fixed 500kHz
  • ACOT® Mode Performs Fast Transient Response
  • Integrated MOSFETs
    ► 31mΩ of High-Side MOSFET
    ► 20mΩ of Low-Side MOSFET
  • Support Output MLCC Stable
  • Internal Soft-Start (1.5ms typ)
  • Built-in OVP/UVP/OCP
  • Power Good Indicator
  • Fixed 300kHz VCLK to Support Charge Pump
  • Individual EN for PWM and LDO
  • Thermal Shutdown
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Laptop Computers<br />Tablet PCs<br />Networking Systems<br />Servers<br />Personal Video Recorders<br />Flat Panel Television and Monitors<br />Distributed Power Systems
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