製品概要

機能と利点

  • +2.3V to +5.5V Input Range
  • Output Voltages
    • +8.5V Output at 250mA from a +2.7V Input (Step-Up Switching Regulator)
    • +23V Output at 20mA (Positive Charge Pump)
    • -6V Output at 10mA (Negative Charge Pump)
    • +4.25V High-Current Op Amp Capable of Delivering 200mA (typ) Short-Circuit Output Current
  • Resistor-Adjustable Switching-Regulator, Op-Amp Output, and LDOO Voltages
  • High-Voltage Level-Shifting Scan Driver with Gate-Shading Control
  • 1.2MHz Step-Up Switching Frequency
  • Fully Assembled and Tested

製品概要

The MAX17117 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that provides the voltages and features required for active-matrix, thin-film transistor (TFT), liquid-crystal display (LCD) applications. The EV kit contains a high-performance step-up regulator, a 350mA low-dropout (LDO) linear regulator, a high-speed operational amplifier (op amp), a positive charge pump for the TFT gate-on supply, a negative charge pump for the TFT gate-off supply, and a 7-output high-voltage, level-shifting scan driver with gate-shading control.

The EV kit operates from a DC supply voltage of +2.3V to +5.5V. The step-up switching regulator is configured for a +8.5V output providing at least 250mA from a +2.7V input. The positive charge pump is configured to provide a +23V output providing at least 20mA. The negative charge pump is configured to provide a -6V output providing at least 10mA. The op amp is configured for +4.25V. The high-voltage, level-shifting scan driver with gate-shading control is designed to drive the TFT panel gate drivers.

Applications

  • Notebook Computer Displays