RT6190 Buck-Boost Converter by Richtek – Efficient Power Delivery for USB PD


Experience efficient power delivery with the RT6190 Buck-Boost Converter by Richtek. Designed specifically for USB Power Delivery (USB PD), this advanced 4-switch bidirectional controller offers a wide input voltage range from 4.5V to 36V, enabling seamless power conversion for a variety of applications. With programmable output voltage between 3V and 36V, the RT6190 delivers up to 100W of power. Its peak current mode control mechanism ensures stable and reliable performance, while the integrated I2C interface allows for convenient programmability and customization.


Key Features:

  • Integrated Buck-Boost controller.
  • Wide Input Voltage Range: Operates from 4.5V to 36V, catering to diverse power sources.
  • Wide Output Voltage Range: Programmable output voltage between 3V and 36V for versatile applications.
  • Peak Current Mode Control: Ensures stability and efficiency in power delivery.
  • Programmable Switching Frequency: Customize the frequency between 250kHz and 1MHz.
  • Power Saving Mode: Enhances light load efficiency for optimized power consumption.

Advanced Functionality
The RT6190 offers a range of advanced features and functionalities that make it a standout choice for power delivery applications:

AnyPowerTM for Constant Voltage and Constant Current:
Benefit from precise output control with the RT6190’s AnyPowerTM technology. It provides constant voltage regulation with a resolution of 12.5mV per step and constant current control with 9-bit resolution, ensuring accurate power delivery.

Bi-Directional Power Delivery:
The RT6190 enables both forward and reverse power delivery operations, making it versatile for various power transmission scenarios.

I2C Compatible Interface:
Customize and program various functions of the RT6190, including CV/CC output, switching frequency, and cable voltage drop compensation, through its I2C compatible interface. Enjoy enhanced control and flexibility.

Additional Features:

  • Adjustable Soft-Start Time: Optimize the start-up process for your specific application requirements.
  • Programmable Cable Voltage Drop Compensation: Compensate for voltage drops in cables, ensuring accurate power delivery to your devices.
  • Built-in Bleeders for Quick VBUS Discharge: Safely discharge residual power from the VBUS line when needed.
  • Power Good Indicator: Stay informed about the converter’s operational status at a glance.
  • Full Protection Suite: The RT6190 integrates multiple protection mechanisms, including input undervoltage lockout (UVLO), over/under-voltage protection (OVP/UVP), cycle-by-cycle current limit, short protection, and over-temperature protection (OTP), ensuring the safety and reliability of your power delivery system.

Compact and Convenient Design:
The RT6190 is available in a space-saving WQFN-40L 5×5 package, enabling easy integration into your application. Its compact form factor doesn’t compromise on performance or features, making it an ideal choice for projects where space is at a premium.

Experience efficient and reliable power delivery with the RT6190 Buck-Boost Converter by Richtek. Its wide input voltage range, programmable output voltage, advanced functionalities, and comprehensive protection suite make it a versatile solution for USB Power Delivery applications. Discover the benefits of this compact and feature-rich converter for your next project.

Technical Details

Additional information

Package Type

WQFN-40L 5×5






3V to 36V

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