The LP6288 is a multi-channel Converter provides six regulated voltage, it includes a boost and three bucks regulators, VGH and VGL charge pump for TFT LCDs. All output are programmable by IIC. VAVDD boost and VHAVDD buck for the Source Driver and the Gamma Buffer, VIO buck and VCORE buck for T-CON, VGH and VGL dual charge pump for the Gate Driver or the Level Shifter. VGH rail can be temperature compensated with GIP technology. Otherwise, High Voltage Stress Mode(HVS) for VAVDD and VHAVDD and the integrated VAVDD Isolation Switch is implemented. VCORE, VHAVDD, VGH, VGL, GPM and the VGH temperature compensation can be enabled and disabled by IIC programming. Other features include short circuit protection, thermal shutdown protection and under-voltage lockout (UVLO). The LP6288 is available in a space saving QFN-40 (0.5mm pitch) package.
Applications
TFT LCD TV
TFT LCD Monitor
TFT LCD Panel
Features
Wide VIN Range: 8V to 14V
Current-Mode Boost Regulator
Isolation Switch
13.5 to 19.8 Programmable Output Voltage
Current Limit Protection
Optional External Switching NMOS Control
Buck Regulator for VIO
2.2V to 3.7V Programmable Output
3A Current Limit Protection
Buck Regulator for VCore
0.8V to 3.3V Programmable Output
2.5A Current Limit Protection
Buck Regulator for VHAVDD
4.8V to 11.1V Programmable Output
1.7A Current Limit Protection
Positive Charge Pump for VGH
20V to 40V Programmable Output
0V to 15V Gate Shaping Voltage
Temperature Compensation
Negative Charge Pump for VGL
-5.5V to -14.5V Output Voltage
Reset Function for XAO
Under-Voltage Protection
Over-Temperature Protection
IIC Compatible Interface for Register Control
Available in QFN-40 (6×6mm)
RoHS Compliant and Halogen Free
Pb-Free Package