MAX1778/MAX1880–MAX1885
Quad-Output TFT LCD DC/DC Converters with Buffer
General Description
The MAX1778/MAX1880–MAX1885 multiple-output DC-DC converters provide the regulated voltages required by active matrix thin-film
transistor (TFT) liquid crystal displays (LCD) in a low-profile TSSOP package.
One high-power step-up converter and two low-power charge pumps convert the 2.
7V to 5.
5V input voltage into three independent output voltages.
A built-in linear
regulator and VCOM buffer complete the power-supply requirements.
The main step-up converter accurately generates an externally set output voltage up to 13V that can supply the display’s row/column drivers.
The converter’s high switching...