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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
Key Spec.
RT6190G
Status Active
Vin (min) (V) 4.5
Vin (max) (V) 36
Vout (min) (V) 3
Vout (max) (V) 36
Iout (max) (A) 5
Current Limit (typ) (A) 6.5
Freq (typ) (kHz) 250
Freq (min) (kHz) 250
Freq (max) (kHz) 1000
Ron_HS (typ) (mOhm) NA
Ron_LS (typ) (mOhm) NA
Iq (typ) (mA) 3
Features ALERT Indicator;Adjustable Soft-Start;Bi-directional Operation;Built-in Bootstrap Switch;Constant Voltage and Constant Current Function;Cycle-by-Cycle Current Limit;Enable Input;I2C;Input UVLO;OCP;OTP;OVP;Peak Current Mode Control;Power Good;Programmable Cable Voltage Drop Compensation;Programmable Switching Frequency;SCP;Selectable (PSM or PWM);UVP
Interface I2C
Package Type WQFN5x5-40
Features
  • Integrated Buck-Boost Controller:
    ► Wide Input Voltage Range: 4.5V to 36V
    ► Wide Output Voltage Range: 3V to 36V
    ► Peak Current Mode Control
  • Adjustable Soft-Start Time
  • Power Good Indicator
  • Built-in Bleeders for Quick VOUT Discharge
  • I2C Compatible Interface
    ► Programmable Switching Frequency (250kHz to 1MHz)
    ► Selectable PSM (Default) and FCCM
    ► AnyPowerTM for Constant Current (in 9-Bit Resolution) Output Settings
    ► Embedded 2nd OCP Function
    ► Power Path Control
  • Full Protection with UVLO, OVP, UVP, OCP, Cycle-by-Cycle Current Limit and OTP
  • WQFN-40L 5x5 Package
Datasheet
TitleVersionLast UpdateDownload
RT6190G: 36V, 4-Switch Buck-Boost Controller with I2C InterfaceInitial Release2023/12/19
Part NumberPackage TypePackage Qty.Free SampleDistributorStockBuy From Authorized Distributor
RT6190GGQWWQFN5x5-401,500 Request Digikey 1,489 Buy
Mouser Lead-Time: 14 weeks Not Available
WPG Lead-Time: 14 weeks Not Available
Please confirm with our distributor or sales representative for actual stock status.
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