Monolithic Power Systems (MPS) EVBL4423H-Q-00A Evaluation Board

Monolithic Power Systems (MPS) EVBL4423H-Q-00A Evaluation Board is designed to evaluate the MP4423H and MPQ4423H switching voltage regulators. These regulators are high-frequency, synchronous, rectified, and step-down switch-mode converters with built-in power MOSFETs and an integrated MPS power inductor. The MP4423H/MPQ4423H regulators have synchronous mode and current mode operation. The synchronous mode provides high efficiency across the entire IOUT range and a current mode that provides fast transient response and eases loop stabilization.

The EVBL4423H-Q-00A evaluation board is a fully assembled and tested board that operates from 4V to 36V input voltage (VIN) range. This evaluation board is AEC-Q100 Grade 1 qualified for use in automotive, industrial control, and distributed power systems.

View MPQ4423H & MP4423H Switching Voltage Regulators


  • Evaluate MP4423H and MPQ4423H regulators
  • 4V to 36V wide operating input voltage (VIN) range
  • 85mΩ/55mΩ, low RDS(ON) internal power MOSFETs
  • High-efficiency synchronous mode
  • 410kHz default switching frequency (fSW)
  • 200kHz to 2.2MHz synchronized external clock
  • High duty cycle for automotive cold-crank conditions
  • Power-Save Mode (PSM)
  • Internal Soft-Start (SS)
  • Power Good (PG) indicators
  • Over-Current Protection (OCP) with hiccup mode
  • Thermal shutdown
  • Fully assembled and tested
  • Available in a QFN-8 (3mm x 3mm) package
  • Available in AEC-Q100 Grade 1


  • Automotive systems
  • Industrial control systems
  • Distributed power systems

Schematic Diagram

Schematic - Monolithic Power Systems (MPS) EVBL4423H-Q-00A Evaluation Board

Performance Graph (Efficiency vs. Load Current vs. Power Loss)

Performance Graph - Monolithic Power Systems (MPS) EVBL4423H-Q-00A Evaluation Board
Published: 2021-11-16 | Updated: 2022-03-11