Monolithic Power Systems Inc. MEZDPD4506A-8538

Overview

MEZDPD4506A-8538 from Monolithic Power Systems is an end-of-life evaluation board for the mEZDPD4506A programmable 45V input, 6A buck DC/DC power module. It hosts a single mEZDPD4506A socket, supports output voltage programming from 0.6V to 22V (default 3.3V), operates with 4–45V input, delivers up to 6A continuous current, and integrates I²C-based digital control via Virtual Bench Pro 2.2 GUI for real-time configuration of switching frequency, current limit, and protection modes.

For engineers reviewing the MEZDPD4506A-8538 datasheet, MEZDPD4506A-8538 pinout, MEZDPD4506A-8538 application, or MEZDPD4506A-8538 equivalent, this board enables rapid validation of digitally programmable high-efficiency power delivery in industrial, test equipment, and FPGA/ASIC supply applications where flexible voltage sequencing and dynamic margining are required.

Technical Context

The MEZDPD4506A-8538 is a hardware platform-not an IC-designed exclusively to evaluate the mEZDPD4506A module. It provides physical interface, passive filtering (including 4.7µH power inductor and multi-capacitor input/output networks), I²C connectivity (SDA/SCL), enable and power-good signaling, and thermal management for full-load operation at up to 6A.

It requires external USB-to-I²C interface (EVKT-USBI2C-02) and Virtual Bench Pro 2.2 software to access digital features. The board's fixed 64mm × 64mm footprint and standardized mounting align with benchtop lab integration, while its EMI-optimized layout (including optional VINSEN+/– and VOUTSEN+/– sense traces) supports accurate regulation and stability testing under variable line/load conditions.

Key Specifications

Availability

MEZDPD4506A-8538 is available at Aetrix Electronics and suitable for industrial power validation, FPGA/ASIC supply prototyping, and automated test equipment development requiring stable component supply during legacy design support and obsolescence transition phases.

Supply support for MEZDPD4506A-8538 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 and modules, headquartered in Kirkland, WA, with global design and support infrastructure.

The mEZDPD4506A product line-including this evaluation board-is designed for engineers needing digitally configurable, high-current DC/DC solutions with integrated telemetry and protection in space-constrained systems.

FAQ

Is MEZDPD4506A-8538 a functional power supply out-of-the-box?

No. The board requires manual insertion of the mEZDPD4506A module (e.g., mEZDPD4506A-0000), connection to an external 4–45V DC source, a load, and the EVKT-USBI2C-02 interface to enable digital programming. Without these, it cannot regulate or deliver power.

What software is required to configure the board?

Virtual Bench Pro 2.2 GUI is mandatory. It communicates via I²C to configure output voltage, switching frequency, overcurrent threshold, soft-start time, and protection behaviors. The GUI and documentation are delivered on the Tdrive-mEZDPD4506A USB thumb drive included in the kit.

Does MEZDPD4506A-8538 support remote sensing?

Yes. The board includes dedicated VINSEN+ / VINSEN– and VOUTSEN+ / VOUTSEN– test points to support Kelvin sensing, minimizing voltage drop errors in high-current or long-trace applications and improving regulation accuracy under dynamic loads.

What is the thermal performance at full 6A load?

At VIN=24V, VOUT=5V, full 6A load, case temperature rise is ≤120°C above ambient (measured per Figure 4). The board uses 2-oz copper layers and thermal vias under the module footprint to sustain continuous operation without forced airflow.

Is the board RoHS-compliant and lead-free?

Yes. All PCB materials, passives (Murata GRM, Panasonic EEEFP), and assembly processes meet RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for surface-mount reflow compatibility.

Can MEZDPD4506A-8538 be used for production deployment?

No. It is strictly an evaluation platform. For production, designers must integrate the mEZDPD4506A module directly into their custom PCB using the official module datasheet layout guidelines, thermal pads, and decoupling recommendations.