The RTQ6749 is an I2C interface programmable power management IC. The IC includes two synchronous boost converters for PAVDD and VGH, one synchronous NAVDD buck-boost, one VGL charge pump, one high performance VCOM with 8-bit Calibrator and one RESET voltage detector. With available in a WQFN-32L 5x5 package, this device is suitable for automotive TFT-LCD panel.

The IC can operate from 2.5V to 5.5V input voltages. High switching frequency operation prevent that the switching noise to interfere AM band. Current-limit functions are provided for all internal- switch converters, and output-fault shutdown protects all converters against output-fault conditions, and output the FAULT signal to communicate with automotive computer. Programmable soft-start functions for all output voltage to limit input inrush current during startup. The recommended junction temperature is -40°C to 150°C, and the ambient temperature is -40°C to 105°C.


  • Infotainment LCD panel
Key Spec.
Status Active
Vin (min) (V) 2.5
Vin (max) (V) 5.5
Number of Channels 6
Number of Buck Converters 0
Number of Boost Converters 2
Number of Negative Outputs 2
Number of LED Drivers 0
Number of LDO Regulators 0
Application Automotive;LCD Bias
Features AEC-Q100;Cycle-by-Cycle Current Limit;Enable Input;I2C;OVP;SCP;UVP
Package Type WQFN5x5-32
  • 2.5V to 5.5V Input Supply Voltage
  • I2C Interface
  • Power-on and Power-off Sequence Free
  • PAVDD Programmable Output Voltage 5V to 7.3V
  • PAVDD Output Current Capability up to 200mA
  • NAVDD Programmable Output Voltage -5V to -7.3V
  • NAVDD Output Current Capability up to 200mA
  • VGH Programmable Output Voltage 7V to 30V
  • VGH Output Current Capability up to 60mA
  • VGH Output Voltage Temperature Compensation
  • VGL Programmable Output Voltage -6V to -18V
  • VGL Output Current Capability up to 60mA
  • VCOM 8bits Programmable Output Voltage
  • Outputs Power-off Discharge Function
  • Programmable Voltage Detector
  • AEC-Q100 Grade 2 Qualified
  • Built in UVLO, UVP, OVP, SCP and OTP Protection
  • Ambient Temperature Range: -40°C to 105°C
  • Junction Temperature Range: -40°C to 150°C
TitleLast UpdateDownload
TFT LCD Integrated Power Module for Automotive2021/12/03
Technical Documents
TitleItem TypeLast UpdateDownload
Richtek Product Selection Guide [Jan., 2024] Selection Guide2024/01/18
Richtek Automotive Product Selection Guide [Sep., 2022] Selection Guide2022/09/01