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TFT LCD Step-Up DC-DC Converter

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet TFT LCD Step-Up DC-DC Converter Dec 23, 2014

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Key Features

  • 1.8V to 5.5V Input Supply Range
  • Built-In 14V, 2.2A, 0.2Ω n-Channel MOSFET
  • High Efficiency (> 85%)
  • Fast Transient Response to Pulsed Load
  • High-Accuracy Output Voltage (1.5%)
  • Internal Digital Soft-Start
  • Input Supply Undervoltage Lockout
  • 1.2MHz Switching Frequency
  • 0.1µA Shutdown Current
  • Small 8-Pin TDFN Package
  • Applications/Uses

    • LCD Monitor Panels
    • Notebook Computer Displays

    Description

    The MAX8752 is a high-performance, step-up DC-DC converter that provides a regulated supply voltage for active-matrix thin-film transistor (TFT) liquid-crystal displays (LCDs). The MAX8752 incorporates current-mode, fixed-frequency, pulse-width modulation (PWM) circuitry with a built-in n-channel power MOSFET to achieve high efficiency and fast transient response. The input supply voltage of the MAX8752 is from 1.8V to 5.5V.

    The MAX8752 operates with a switching frequency of 1.2MHz, allowing the use of ultrasmall inductors and low-ESR ceramic capacitors. The current-mode architecture provides fast transient response to the pulsed loads typical of LCD source-driver applications. A compensation pin (COMP) gives users flexibility in adjusting loop dynamics. The 14V internal MOSFET can generate output voltages up to 13V. The internal digital soft-start and current limit effectively control inrush and fault currents.

    The MAX8752 is available in a 3mm x 3mm 8-pin TDFN package with a maximum height of 8mm.

    Simplified Block Diagram

    MAX8752: Typical Operating Circuit MAX8752: Typical Operating Circuit Zoom icon

    Technical Docs

    Data Sheet TFT LCD Step-Up DC-DC Converter Dec 23, 2014

    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 .