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The RT8131B is a high efficiency single phase synchronous Buck DC-DC controller with 5V supply voltage.

The RT8131B has embedded MOSFET gate driver with high driving capability, supporting driving voltage up to 5V. This device uses lossless low-side MOSFET RDS(ON) current sense technique for over-current protection with adjustable threshold set by the LGATE pin (LGOCS). Other features include power good indication, enable/disable control and internal soft-start. The RT8131B also provides fault protection functions to protect the power stage output. With above functions, the IC provides customers a cost-effective solution for high efficiency power conversion. The RT8131B is available in the WDFN-10L 3x3 package.

Applications

  • Motherboard, Memory/Chip-Set Power
  • Graphic Card, GPU/Memory Core Power
  • Low Voltage, High Current DC-DC Regulator
Datasheet
TitleVersionLast UpdateDownload
RT8131B: 5V High Efficiency Synchronous Buck PWM ControllerInitial Release2017/03/31
Technical Documents
TitleItem TypeLast UpdateDownload
Car Battery Cold Crank Waveform Generator App. Note2021/05/21
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RT8131BGQWWDFN3x3-101,500 Request Digikey 1,333 Buy
Mouser 1,500 Buy
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