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Применения > > Evaluation Kit for MAXM17544 (MAXM17544EVKIT)

Evaluation Kit for MAXM17544 (MAXM17544EVKIT) (MAXM17544EVKIT)

The MAXM17544 evaluation kit (EV kit) is a demonstration circuit of the MAXM17544 high-voltage, high-efficiency, current-mode scheme, synchronous step-down, DC-DC switching power module. The EV kit is designed for a 3.3V output and delivers up to 3.5A load current from a wide input-voltage range of 4.5V to 42V. The EV kit switches at an optimal 500kHz switching frequency to allow the use of small component-sizes, helping to minimize solution-size while maintaining high-performance. The EV kit provides a precision-enable input, an open-drain active-low RESET output signal, and external frequency synchronization to provide a simple and reliable startup sequence and eliminate beat frequency between regulators. The EV kit also includes optional component footprints to program different output voltages, an adjustable input undervoltage-lockout, and a soft-start time to control inrush current during startup. The MAXM17544 IC data sheet provides a complete description of the part that should be read in conjunction with this evaluation kit data sheet prior to modifying the demo circuit.

Возможности

  • Highly Integrated Solution with Integrated Shield Inductor
  • Wide 4.5V to 42V Input Range
  • Preset 3.3V Output with a Fixed Resistor-Divider on FB (Feedback Pin)
  • Programmable Output-Voltage Feature (0.9V to 12V)
  • Up to 3.5A Output Current
  • High 91.2% Efficiency (VIN = 12V, VOUT = 3.3V at 0.74A)
  • 500kHz Switching Frequency
  • Enable/UVLO Input, Resistor-Programmable UVLO Threshold
  • Adjustable Soft-Start Time
  • Selectable PWM, PFM, or DCM Mode
  • Open-Drain Active-Low RESET Output
  • External Frequency Synchronization
  • Overcurrent and Overtemperature Protection
  • Low-Profile, Surface-Mount Components
  • Lead(Pb)-Free and RoHS Compliant
  • Fully Assembled and Tested

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