PMIC for TFT LCD TV Panels
The RT6908 provides a complete set of programmable
multi-functional power solution for TFT LCD panel. The
RT6908 contains a step-up converter for main power and
step-down controllers to provide the logic voltages for the
system. Moreover, a positive charge pump regulator
provides the adjustable gate-high voltage, VGH; a negative
charge pump regulator provides the gate-low voltage, VGL.
AVDD, VGH and VGL outputs and power sequence can be
programmable through I2C interface.
With its high current capabilities, the device is ideal for
large screen monitor panels and LCD TV applications with
12V supply voltage. The RT6908 is available in a WQFN-
40L 5x5 package.
QW : WQFN-40L 5x5 (W-Type)
Lead Plating System
Z : ECO (Ecological Element with
Halogen Free and Pb free)
Richtek products are :
` RoHS compliant and compatible with the current require-
ments of IPC/JEDEC J-STD-020.
` Suitable for use in SnPb or Pb-free soldering processes.
RT6908ZQW : Product Number
YMDNN : Date Code
z 9V to 16V Input Supply Voltage
z 4.4A Boost Regulator for AVDD with 12.7V to 19V
z 1-CH Sync. Buck Converter for VI/O
z 1-CH Sync. Buck Controller for VCORE
z Negative Charge Pump Regulator for VGL with
−8.1V to −1.8V Programmable Output
z Positive Charge Pump Regulator for VGH with 24.5V
to 40V Programmable Output
z Programmable Sequencing
z Voltage Detection Output
z Over Temperature Protection
z I2C Compatible Interface for Register Control
z Thin 40-Lead WQFN Package
z RoHS Compliant and Halogen Free
z TFT LCD TV Panel
40 39 38 37 36 35 34 33 32 31
11 12 13 14 15 16 17 18 19 20
Copyright ©2013 Richtek Technology Corporation. All rights reserved.
DS6908-01 March 2013
is a registered trademark of Richtek Technology Corporation.