MAX1889 Datasheet (Maxim Integrated) - Triple-Output TFT LCD Power Supply

MAX1889, Triple-Output TFT LCD Power Supply

The MAX1889 provides the three regulated output voltages required for active matrix, thin-film transistor liquid crystal displays (TFT LCDs).

It combines a high-performance step-up regulator with two linear-regulator controllers and multiple levels of protection circuitry for a complete power-supply

MAX1889 Features

* o High-Performance Step-Up Regulator Fast Transient Response Current-Mode Control Architecture Built-In High-Efficiency N-Channel Power MOSFET Current-Limit Comparator >85% Efficiency Selectable Switching Frequency (500kHz/1MHz) Internal Soft-Start o Positive Linear-Regulator Controller o Negative L