Features and Benefits

  • 2.5V to 5.5V Input Operating Range
  • Current Mode Step-Up Regulator
    • Fast-Transient Response
    • Built-In 20V, 3A, 0.16Ω n-Channel Power MOSFET
    • Cycle-by-Cycle Current Limit
    • 87% Efficiency (5V Input to 13V Output)
    • 1.2MHz Switching Frequency
    • ±1% Output Voltage Regulation Accuracy
  • High-Current 18V VCOM Buffer
    • ±500mA Output Short-Circuit Current
    • 45V/µs Slew Rate
    • 20MHz -3dB Bandwidth
    • Rail-to-Rail Output
  • Regulated Charge Pump for TFT Gate-On Supply
  • Regulated Charge Pump for TFT Gate-Off Supply
  • Logic-Controlled High-Voltage Switches with Adjustable Delay
  • Soft-Start and Timed Delay Fault Latch for All Outputs
  • Overload and Thermal Protection

Product Details

The MAX17075 includes a high-voltage boost regulator,one high-current operational amplifier, two regulated charge pumps, and one MLG block for gate-driver supply modulation.

The step-up DC-DC converter is a 1.2MHz current-mode boost regulator with a built-in power MOSFET. It provides fast load-transient response to pulsed loads while producing efficiencies over 85%. The built-in 160mΩ (typ) power MOSFET allows output voltages as high as 18V boosted from inputs ranging from 2.5V to 5.5V. A built-in 7-bit digital soft-start function controls startup inrush currents.

The gate-on and gate-off charge pumps provide regulated TFT gate-on and gate-off supplies. Both output voltages can be adjusted with external resistive voltage-dividers.

The operational amplifier, typically used to drive the LCD backplane (VCOM), features high-output short-circuit current (±500mA), fast slew-rate (45V/µs), wide bandwidth (20MHz), and rail-to-rail outputs.

The MAX17075 is available in a 24-pin thin QFN package with 0.5mm lead spacing. The package is a square (4mm x 4mm) with a maximum thickness of 0.8mm for ultra-thin LCD design. It operates over the -40°C to +105°C temperature range.


  • LCD Monitor Panels
  • LCD TVs
  • Notebook Computer Displays

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At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.