MAX1530

Multiple-Output Power-Supply Controllers for LCD Monitors

Multiple-Output Power-Supply Controllers Generate All the Supply Rails for Thin-Film Transistor (TFT) Liquid-Crystal Display (LCD) Monitors


Please check latest availability status for a specific part variant.

Description

The MAX1530/MAX1531 multiple-output power-supply controllers generate all the supply rails for thin-film transistor (TFT) liquid-crystal display (LCD) monitors. Both devices include a high-efficiency, fixed-frequency, step-down regulator. The low-cost, all N-channel, synchronous topology enables operation with efficiency as high as 93%. High-frequency operation allows the use of small inductors and capacitors, resulting in a compact solution. The MAX1530 includes three linear regulator controllers and the MAX1531 includes five linear regulator controllers for supplying logic and LCD bias voltages. A programmable startup sequence enables easy control of the regulators.

The MAX1530/MAX1531 include soft-start functions to limit inrush current during startup. An internal step-down converter current-limit function and a versatile overcurrent shutdown protect the power supplies against fault conditions. The MAX1530/MAX1531 use a current-mode control architecture, providing fast load transient response and easy compensation. An internal linear regulator provides MOSFET gate drive and can be used to power small external loads.

The MAX1530/MAX1531 can operate from inputs as high as 28V and are well suited for LCD monitor and TV applications running directly from AC/DC wall adapters. Both devices are available in a small (5mm x 5mm), ultra-thin (0.8mm), 32-pin QFN package and operate over the -40°C to +85°C temperature range.
MAX1530, MAX1531: Typical Operating Circuit MAX1530, MAX1531: Typical Operating Circuit Enlarge+

Key Features

  • 4.5V to 28V Input Voltage Range
  • 250kHz/500kHz Current-Mode Step-Down Converter
    • Small Inductor/Capacitors
    • No Sense Resistor
  • Three Positive Linear Regulator Controllers
    • One Positive and One Negative Additional Controller (MAX1531)
    • Small Input and Output Capacitors
  • Timed Reset Output
  • Uncommitted Overcurrent Protection (MAX1531)
  • Soft-Start for All Regulators
  • Programmable Input Undervoltage Comparator
  • Programmable Startup Sequencing

Applications/Uses

  • LCD Monitors and TVs

MAX1531EVKIT: Evaluation Kit for the MAX1530, MAX1531

Quality and Environmental Data

Request Reliability Report for: MAX1530 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX1530ETJ+
  • MAX1530ETJ+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

    Related Resources


    MAX16923
    Automotive 4-Output Display Power Solution with Watchdog

    • High Integration
    • Integrated Watchdog Timer
    • Compact TQFN20 4mm x 4mm Package