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.

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