MAX1779 Datasheet (Maxim) - Low-Power Triple-Output TFT LCD DC-DC Converter

MAX1779, Low-Power Triple-Output TFT LCD DC-DC Converter

The MAX1779 triple-output DC-DC converter provides highly efficient regulated voltages required by small active matrix, thin-film transistor (TFT) liquid-crystal displays (LCDs).

One high-power DC-DC converter and two low-power charge pumps convert the +2.7V to +5.5V input supply voltage into three

MAX1779 Features

* o Three Integrated DC-DC Converters o 250kHz Current-Mode PWM Boost Regulator Up to +13V Main High-Power Output ±1% Accuracy High Efficiency (91%) o Dual Charge-Pump Outputs Up to +40V Positive Charge-Pump Output Down to -40V Negative Charge-Pump Output o Internal Supply Sequencing o Internal Power