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MAX1778 Quad-Output TFT LCD DC/DC Converters

MAX1778 Description

MAX1778/MAX1880 *MAX1885 Quad-Output TFT LCD DC/DC Converters with Buffer General .
The MAX1778/MAX1880. MAX1885 multiple-output DC-DC converters provide the regulated voltages required by active matrix thin-film transistor (TF.

MAX1778 Features

* 500kHz/1MHz Current-Mode PWM Step-Up Regulator
* Up to +13V Main High-Power Output ±1% Accurate
* High Efficiency (91%)
* Dual Regulated Charge-Pump Outputs (MAX1778/ MAX1880
* MAX1882 only)
* Up to +40V Positive Charge-Pump Output
* Up to -4

MAX1778 Applications

* an external transistor can be added. Additionally, the VCOM buffer provides a high current output that is ideal for driving the capacitive backplane of TFT LCD panels. The VCOM buffer’s output voltage is preset with an internal 50% resistive-divider or can be externally adjusted for other voltages.

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Quad-Output TFT LCD Converters Maxim
Maxim MAX1778-like datasheet