Features and Benefits

  • High Integration
    • Complete Display Power Solution from Automotive Battery
    • One High-Voltage 2.1A Buck Converter (3.3V)
    • One High-Voltage 100mA Low-IQ Linear Regulator (3.3V)
    • One Low-Voltage 1.6A Buck Converter (1V)
    • One Low-Voltage 175mA Linear Regulator (1.8V)
    • Power-Good Outputs
  • Robust and Low electromagnetic interference (EMI)
    • Programmable Switching Frequency
    • Internal Spread Spectrum Oscillator
    • Slew-Rate Controlled Switching
    • Thermal Shutdown Protection
  • Proven PCB Layout
  • Fully Assembled and Tested
  • Automotive CISPR25 CLASS5 compliant
  • -40°C to +105°C Operating Temperature Range

Product Details

The MAX25540 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB used to evaluate the MAX25540 automotive 4-output display-power solution. The MAX25540 is a 4-channel power management integrated circuit (PMIC) designed to accommodate the main rails used in modern automotive thin-film transistor (TFT) displays. The MAX25540 integrates a high-voltage buck converter that transforms battery voltages into a 3.3V intermediate rail. In addition, a high-voltage, always-on, low-quiescent-current linear regulator supplies power at 3.3V. The low-voltage section consists of a fully integrated DC/DC converter and a low dropout (LDO) running off the intermediate rail. The low-voltage DC/DC converter provides 1V, while the LDO produces 1.8V. A single START control pin initiates the start-up sequence, thereby simplifying device control. The MAX25540’s external PMOSFET control block allows battery voltage to be switched to a downstream device, such as a backlight boost converter. The MAX25540 also embeds selectable switching frequencies with spread spectrum.


  • Central Information Displays
  • Infotainment Displays
  • Instrument Clusters

Applicable Parts

Documentation & Resources


Pricing displayed is based on 1-piece.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.