产品详情

General Description

The G5562A DC-DC converter provides regulated voltages

required by thin-film transistor (TFT) liquid crystal

displays (LCD) panels in TQFN package. One step-up

converter, one step-down converter, and two charge

pumps convert the 8V to 14V input voltage into four

output voltages. These features complete the powersupply

requirements of large screen LCD panels. The

step-up converter provides source voltages VS and the

step-down converter provides logic voltage for the system.

The dual charge pumps independently generate

adjustable regulated output voltages VGL and VGH to

bias the LCD. These four blocks operate with a fixed

switching frequency of 500kHz or 750kHz.