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Monolithic Power Systems (MPS) EVQ9841 Evaluation Board

Monolithic Power Systems (MPS) EVQ9841 Evaluation Board is designed to demonstrate the capabilities of MP9841 and MPQ9841 regulators. This MP/MPQ9841GL is a 350kHz to 2.5MHz frequency programmable, synchronous, step-down switching regulator with integrated internal high-side and low-side power MOSFETs. The EVQ9841 evaluation board features up to 1A output current with current mode control for fast loop response, 3.3V to 36V input voltage, and 3.3V output voltage. This MP/MPQ9841GL comes with an Advanced Asynchronous Modulation (AAM) mode that helps achieve high efficiency at light load conditions by scaling down the switching frequency. Typical applications include automotive systems and industrial power systems.

Features

  • Synchronize to external clock selectable in-phase or 180° out-of-phase
  • Power good indicator
  • Programmable soft-start time
  • Selectable forced CCM and AAM
  • Low dropout mode
  • Over-current protection with valley-current detection and hiccup
  • Thermal shutdown
  • Available in a QFN-16 (3mm x 4mm) package
  • Available wettable flank
  • AEC-Q100 grade-1

Specifications

  • 3.3V to 36V wide operating input range 1A continuous output current
  • 2μA low shutdown mode current
  • 14μA sleep mode quiescent current
  • Internal 125mΩ high-side and 115mΩ low side MOSFETs
  • 350kHz to 2.5MHz programmable switching frequency
  • 80ns minimum on time

Applications

  • Automotive systems
  • Industrial power systems

Schematic

Schematic - Monolithic Power Systems (MPS) EVQ9841 Evaluation Board

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Monolithic Power Systems (MPS) EVQ9841 Evaluation Board