MAX17126B

Multi-Output Power Supplies with VCOM Amplifier and High-Voltage Gamma Reference for LCD TVs

Highly Integrated IC LCD TV Power Supplies with Gamma References and VCOM Op Amp Minimize Space and Cost

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Part Details

  • 8.0V to 16.5V IN Supply-Voltage Range
  • Selectable Frequency (500kHz/750kHz)
  • Current-Mode Step-Up Regulator
    • Fast Load-Transient Response
    • High-Accuracy Output Voltage (1.0%)
    • Built-In 20V, 4.2A, 100mΩ MOSFET
    • High Efficiency
    • Adjustable Soft-Start
    • Adjustable Current Limit
    • Low Duty-Cycle Operation (13.2VIN - 13.5V AVDD)
  • Current-Mode Step-Down Regulator
    • Fast Load-Transient Response
    • Built-In 20V, 3.2A, 100mΩ MOSFET
    • High Efficiency
    • 3ms Internal Soft-Start
  • Adjustable Positive Charge-Pump Regulator
  • Adjustable Negative Charge-Pump Regulator
  • Integrated High-Voltage Switch with Adjustable Turn-On Delay
  • High-Speed Operational Amplifier
    • ±200mA Short-Circuit Current
    • 45V/µs Slew Rate
  • High-Accuracy Reference for Gamma Buffer
    • ±1% Feedback Voltage
    • Up to 30mA Load Current
    • Low-Dropout Voltage 0.5V at 60mA
  • External p-Channel Gate Control for AVDD Sequencing
  • PGOOD Comparator
  • Input Undervoltage Lockout and Thermal-Overload Protection
  • 48-Pin, 7mm x 7mm, TQFN Package
MAX17126B
Multi-Output Power Supplies with VCOM Amplifier and High-Voltage Gamma Reference for LCD TVs
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