Input Voltage Range: 2.5V 5.5V

Main Output, AVDD

Adjustable Voltage

Load current up to 40mA@10V

Efficiency up to 75%

Positive Output, VGH

Adjustable Voltage up to 20V@2mA

Negative Output, VGL

Adjustable Voltage low to -20V@2mA


Over-current protection cycle by cycle

Thermal shutdown

DFN-12L Package


Small Form Factor a-Si and LTPS TFT LCD


Cellular Phones

MP3 Players

GPS Receivers



The HX3008 DC-DC converter supplies all three voltages required by small thin film transistor (TFT) liquid crystal display (LCD) panels. The compact HX3008 uses a single inductor to generate independently regulated positive and negative outputs.

The main output, AVDD, is post-regulated to provide a low-ripple source drive voltage for the LCD display. The auxiliary outputs generate a boosted output voltage, VGH, up to 20 V, and a negative output voltage, VGL, low to -20 V for the LCD gate drive. The device has internal over-current protection cycle by cycle and thermal shutdown for high reliability during fault conditions.

The HX3008 is available in a DFN-12L package.


Typical Application Circuit


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