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.

特性 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/MAX1881/MAX1882 only)

Up to +40V Positive Charge-Pump Output

Up to -40V Negative Charge-Pump Output

?Low-Dropout 40mA Linear Regulator(MAX1778/MAX1881/MAX1883/MAX1884 only)

Up to +15V LDO Input

?Optional Higher Current with External Transistor

?2.7V to 5.5V Input Supply

?Internal Supply Sequencing and Soft-Start

?Power-Ready Output

?Adjustable Fault-Detection Latch

?Thermal Protection (+160°C)

?0.1μA Shutdown Current

?0.7mA IN Quiescent Current

?Ultra-Small External Components

?Thin TSSOP Package (1.1mm max height)

Applications

TFT LCD Notebook Displays

TFT LCD Desktop Monitor Panels