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The RT6228A/B/C is an advanced constant on-time (ACOT<sup>TM</sup>) mode synchronous buck converter. The main control loop of the RT6228A/B/C using an advanced constant on-time (ACOT<sup>TM</sup>) mode control which provides a very fast transient response. The RT6228A/B operates from 4.5V to 23V input voltage and the RT6228C operates from 5.1V to 23V. For the RT6228A, the output voltage can be programmed between 0.6V to 5.1V.
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  • 4.5V to 23V (RT6228A/B) and 5.1V to 23V (RT6228C) Input Voltage Range 8A Output Current
  • ACOTTM Mode Performs Fast Transient Response
  • ACOTTM Architecture to Enable All MLCC Output Capacitor Usage
  • Fixed 750kHz (RT6228C) and 500kHz (RT6228A/B) Switching Frequency
  • High Efficient Internal Power MOSFET Switch- 20mΩ (High-Side) and 10mΩ (Low-Side)
  • Adjustable Output Voltage from 0.6V to 5.1V (RT6228A)
  • Fixed 3.3V (RT6228C) LDO Output Supplies 100mA
  • Pre-biased Soft-Start
  • Cycle-by-Cycle Over-Current Protection
  • Input Under-Voltage Lockout
  • Thermal Shutdown Protection
  • Output Over-/Under-Voltage Protection
  • Ultrasonic Mode (USM)
  • 300kHz CLK for External Charge Bump
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Industrial and Commercial Low Power Systems<br />Computer Peripherals<br />LCD Monitors and TVs<br />Green Electronics/Appliances<br />Point of Load Regulation for High-Performance DSPs, FPGAs, and ASICs
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