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The RT6190G is a 4-switch Buck-Boost controller designed for converting input voltage to output voltage that can be equal to, higher or lower than input voltage. The RT6190G operates with wide input voltage range from 4.5V to 36V, and the output voltage can be set from 3V to 36V by external FB pin.

The RT6190G implements peak current mode control mechanism for smooth operating in Buck, Boost and Buck-Boost modes. It also features adjustable soft-start function through external SS pin. With an I2C compatible interface, the RT6190G supports many programmable functions including switching frequency, power path control, and CC output without modifying external current sense resistor. Moreover, the RT6190G integrates full protection such as input UVLO, overvoltage/undervoltage protection, cycle-by-cycle current limit, short protection, and over-temperature protection.

The RT6190G is available in a WQFN-40L 5x5 package.

The recommended junction temperature Range is -40°C to 125°C.

Applications

  • Buck-Boost Bus Supply
  • Docking Station
  • USB Power Delivery
Datasheet
TitleVersionLast UpdateDownload
RT6190G: 36V, 4-Switch Buck-Boost Controller with I2C InterfaceInitial Release2023/12/19
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2026] Selection Guide2026/01/12
Part NumberPackage TypePackage Qty.DistributorStockBuy From Authorized Distributor
RT6190GGQWWQFN5x5-401,500 Digikey 1,214 Buy
0 Lead-Time: 14 weeks
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