12A, 18V, 500kHz, ACOT® Synchronous Step-Down Converter


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The RT6242A/B is a synchronous step-down converter with Advanced Constant On-Time (ACOT®) mode control. The ACOT® provides a very fast transient response with few external components. The low impedance internal MOSFET supports high efficiency operation with wide input voltage range from 4.5V to 18V. The proprietary circuit of the RT6242A/B enables to support all ceramic capacitors. The output voltage can be adjustable between 0.7V and 8V. The soft-start is adjustable by an external capacitor.


  • Industrial and Commercial Low Power Systems
  • Computer Peripherals
  • LCD Monitors and TVs
  • Green Electronics/Appliances
  • Point of Load Regulation for High-Performance DSPs, FPGAs, and ASICs
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12A, 18V, 500kHz, ACOT® Synchronous Step-Down Converter2015/09/15
Technical Documents
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ACOT® Stability Testing2020/04/13
The Calculation of Output DC Offset for ACOT™ Control Buck Converter with Feed-forward Compensator2019/12/12
ACOT™ (Advanced Constant-On Time) Synchronous Step-Down Converters2019/12/12
Comparing Buck Converter Topologies2019/12/12
Buck Converter Selection Criteria2019/12/12
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How to estimate control loop bandwidth from the transient response time?2017/03/30 786
Part NumberPackage TypePackage Qty.Free SampleBuy From Authorized Distributor
RT6242AHGQUFUQFN3x3-16J(FC)1500 Not available Buy from Distributor
RT6242BHGQUFUQFN3x3-16J(FC)1500 Request Buy from Distributor