General Description
The MAX1664 integrates power-supply and backplane drive circuitry for active-matrix thin-film-transistor (TFT) liquid crystal displays. Included are a single-output, pulsewidth-modulation boost converter (0.25Ω switch), a dual-output (positive and negative) gate-driver supply using one inductor, an LCD backplane driver, and a simple phase-locked loop to synchronize all three outputs.

FEATUREs
♦ Integrates All Active Circuitry for Three DC-DC Converters
♦ Ultra-Small External Components (ceramic capacitors, 2µH to 5µH inductors)
♦ DC-DC Converters Phase-Locked to Backplane Frequency for Lowest Noise
♦ Low Operating Voltage (down to +2.8V)
♦ Adjustable Output Voltage from VIN to +5.5V
♦ Load Currents Up to 500mA
♦ Adjustable TFT Gate Driver Output:
    Positive, VIN to +28V
    Negative, 0 to -10V (-20V with added components)
♦ Includes 0.35Ω Backplane Driver
♦ 1µA Shutdown Current
♦ Power-Ready Output Signal

APPLICATIONs
    LCD Modules
    LCD Panels