Monolithic Power Systems Inc. MEZDPD4506AS-84F9

Overview

MEZDPD4506AS-84F9 from Monolithic Power Systems is an end-of-life evaluation board for the mEZDPD4506A programmable DC/DC buck converter module, supporting 4–45V input, 0.6–22V output (default 3.3V), up to 6A continuous load, and I²C-based digital configuration via Virtual Bench Pro 2.2 GUI. It integrates a 4.7µH power inductor, dual 22µF output capacitors, and USB-to-I²C interface support for real-time parameter tuning in lab validation.

For engineers reviewing the MEZDPD4506AS-84F9 datasheet, MEZDPD4506AS-84F9 pinout, MEZDPD4506AS-84F9 application, or MEZDPD4506AS-84F9 equivalent, this board enables rapid characterization of digitally programmable 45V/6A buck regulation - including adjustable switching frequency (600kHz typical), current limit, protection modes, and loop compensation - without custom PCB design.

Technical Context

The MEZDPD4506AS-84F9 implements a complete reference design for the mEZDPD4506A module, which embeds nonvolatile memory for multiple-time programming of output voltage, current limit, soft-start, fault response, and compensation coefficients. It operates as a standalone 64mm × 64mm evaluation platform with dedicated VIN, VOUT, GND, SDA, and SCL terminals.

It supports full digital control via I²C using the EVKT-USBI2C-02 dongle and Virtual Bench Pro 2.2 software, enabling real-time readback of telemetry (input/output voltage/current, temperature, status flags) and dynamic reconfiguration of operating parameters under load.

Key Specifications

Availability

MEZDPD4506AS-84F9 is available at Aetrix Electronics and suitable for power system validation, digital PMIC prototyping, and embedded power architecture testing requiring stable component supply during design-in and qualification phases.

Supply support for MEZDPD4506AS-84F9 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, including DC/DC converters, LED drivers, and motor drivers, with global manufacturing and quality certifications.

This board belongs to MPS's mEZ™ family of fully integrated, digitally programmable power modules - designed to accelerate development of configurable, high-efficiency power supplies for industrial, telecom, and computing applications.

FAQ

Is MEZDPD4506AS-84F9 a standalone power supply IC?

No. MEZDPD4506AS-84F9 is an evaluation board housing the mEZDPD4506A module - a complete, surface-mount DC/DC buck solution with integrated MOSFETs, inductor, and controller. The board itself contains no active power conversion circuitry beyond passive components and interface connectors.

What software is required to configure the board?

Virtual Bench Pro 2.2 GUI is mandatory. It runs on Windows, communicates via I²C through the EVKT-USBI2C-02 dongle, and provides full access to output voltage, current limit, switching frequency, soft-start time, overvoltage/overcurrent/thermal protection thresholds, and PID compensation settings.

Does the board support analog feedback or only digital control?

Digital-only control. The mEZDPD4506A module uses internal ADCs and digital loop compensation; no external resistor divider or analog compensation network is supported. Output voltage is set exclusively via I²C register writes to the VOUT_COMMAND register.

Can the board operate without the GUI or USB interface?

Yes - it powers up with factory-default settings (3.3V output, 600kHz, 6A limit). However, all programmable features - including voltage adjustment, protection reconfiguration, and telemetry readback - require active I²C communication via the GUI and USB-to-I²C adapter.

What is the thermal performance under full 6A load?

At VIN=24V, VOUT=5V, full 6A load, case temperature rise is ≤45°C above ambient (25°C), measured at the center of the mEZDPD4506A module footprint. The board includes thermal vias and copper pours optimized for conduction cooling without forced airflow.

Is the board RoHS-compliant and lead-free?

Yes. All components on MEZDPD4506AS-84F9 - including Murata GRM32ER61H106KA12L capacitors, Würth 744311470 inductor, and Yageo RC1210FR-07100RL resistor - are RoHS 3 compliant and lead-free per MPS documentation and bill-of-materials records.

What does "END OF LIFE" mean for this part?

"END OF LIFE" indicates MPS has discontinued marketing and new production of the EVmEZDPD4506A-00A platform. Aetrix Electronics maintains limited legacy stock for design continuity and repair support, but no future revisions or replacements are planned.