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四路输出开关转换器提供TFT LCD面板的电源
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2012-02-03
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The LT®1943 is a highly integrated, 4-output regulatordesigned to power large TFT LCD panels. The LT1943employs switching regulators—instead of linear regulators—to minimize power dissipation and accommodate awide input voltage range. The wide input range, 4.5V to22V, allows it to accept a variety of power sources,including the commonly used 5V, 12V and 19V AC adaptors.
The first buck regulator provides a logic voltage withup to 2A of current. The other three switching regulatorsprovide the three bias voltages, AVDD, VON and VOFF,required by LCDs.
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