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Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp

LCD display bias IC with integrated scan driver offers new level of integration and functionality

Product Details

Key Features

Simplified Block Diagram

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Key Features

  • 1.8V to 5.5V IN Supply Voltage Range
  • 3mA SUP Quiescent Current (Switching)
  • 1.2MHz Current-Mode Step-Up Regulator
    • Fast Transient Response
    • High-Accuracy Output Voltage (1.0%)
    • Built-In 20V, 1.9A, 200mΩ MOSFET
    • High Efficiency (> 85%)
    • Digital Soft-Start
  • High-Speed Op Amp
    • 150mA Output Current
    • 45V/µs Slew Rate
    • 20MHz, -3dB Bandwidth
  • High-Voltage Level-Shifting Scan Drivers
    • Logic-Level Inputs
    • +30V to -10V Output Rails
  • Thermal-Overload Protection
  • 40-Pin, 5mm x 5mm, Thin QFN Package

Applications/Uses

  • LCD Monitor Panels
  • Notebook Computer Displays

Description

The MAX17010 contains a high-performance step-up switching regulator, a high-speed operational amplifier (op amp), and a high-voltage level-shifting scan driver. The device is optimized for thin-film transistor (TFT) liquid-crystal display (LCD) applications.

The step-up DC-DC converter provides the regulated supply voltage for the panel-source driver ICs. The converter is a 1.2MHz current-mode regulator with an integrated 20V n-channel power MOSFET. The high switching frequency allows the use of ultra-small inductors and ceramic capacitors. The current-mode control architecture provides fast transient response to pulsed loads. The step-up regulator features undervoltage lockout (UVLO), soft-start, and internal current limit. The high-current op amp is designed to drive the LCD backplane (VCOM). The amplifier features high output current (±150mA), fast slew rate (45V/µs), wide bandwidth (20MHz), and rail-to-rail inputs and outputs.

The high-voltage, level-shifting scan driver is designed to work with panels that incorporate row drivers on the panel glass. Its eight outputs swing from +30V (max) to -10V and can swiftly drive capacitive loads.

The MAX17010 is available in a 40-pin thin QFN package with a maximum thickness of 0.8mm for ultra-thin LCD panels. The device operates over the -40°C to +85°C temperature range.

Simplified Block Diagram

MAX17010: Minimal Operating Circuit MAX17010: Minimal Operating Circuit Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.