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