DC to DC Converter by Richtek

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RT6190GQW Image

The RT6190GQW from Richtek is a 4-switch Bi-directional Buck-Boost Controller that converts an input voltage of 4.5- 36 V to an output voltage of 3-36 V. It has been designed for USB power delivery (USB PD) and implements peak current mode control mechanism with the programmable constant voltage (CV) and constant current (CC) output to support USB-PD 3.0 SPR and 3.1 EPR modes. This JEDEC-compliant DC-DC controller offers bi-directional power delivery enabling forward and reverse operation and has a programmable switching frequency of 250 kHz to 1 MHz. It consists of built-in charge pumps for driving external low-cost N-Channel MOSFETs to control the power path as well as an I2C compatible interface to support many programmable functions including CV/CC output, switching frequency, and cable voltage drop compensation.

This RoHS-compliant DC-DC converter offers input under-voltage lockout (ULVO) protection, over/under voltage protection, cycle-by-cycle current limit, short protection, and over-temperature protection to prevent over current, over-voltage, over-heating, and short circuit-related damages. It is available in a surface-mount package that measures 5 x 5 mm and is ideal for monitors, USB power delivery, and power bank applications.

Product Specifications

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Product Details

  • Part Number
  • Manufacturer
  • Description
    36 V Bi-Directional Buck-Boost Controller


  • Type
  • Configuration
  • Input Voltage
    4.5 to 36 V
  • Output Voltage 1
    3 to 36 V
  • Supply Voltage
    4.5 to 36 V
  • Operating Temperature
    -40 to 125 degree C
  • Package Type
    Surface Mount
  • Package
  • Application
    Monitor, USB Power Delivery, Power Bank
  • Dimension
    5 x 5 mm
  • ROHS

Technical Documents