Monolithic Power Systems Inc. MEZDPD4506A-8517

Overview

MEZDPD4506A-8517 from Monolithic Power Systems is an end-of-life evaluation board for the mEZDPD4506A programmable 45V input, 6A buck DC/DC power module. It supports output voltage programming from 0.6V to 22V (default 3.3V), operates at a typical 600kHz switching frequency, delivers up to 94.4% peak efficiency at 24V_IN/12V_OUT, and interfaces via I²C using the Virtual Bench Pro 2.2 GUI for full digital configuration of voltage, current limit, protection modes, and compensation.

For engineers reviewing the MEZDPD4506A-8517 datasheet, MEZDPD4506A-8517 pinout, MEZDPD4506A-8517 application, or MEZDPD4506A-8517 equivalent, this board enables rapid validation of high-efficiency, digitally programmable point-of-load regulation in industrial control, test equipment, and FPGA/ASIC power sequencing applications requiring flexible, stable 0.6–22V outputs up to 6A.

Technical Context

The MEZDPD4506A-8517 is a dedicated evaluation platform-not a standalone IC-designed exclusively to host and exercise the mEZDPD4506A module. It provides complete I²C access to the module's multiple-time programmable memory and integrates all necessary input/output filtering, thermal management, and sensing paths (VINSEN+, VINSEN−, VOUTSEN+, VOUTSEN−) for accurate characterization.

It requires external USB-to-I²C hardware (EVKT-USBI2C-02) and Virtual Bench Pro 2.2 software to configure switching frequency, output voltage, overcurrent threshold, soft-start time, and fault response behavior. The board's 64mm × 64mm layout supports thermal testing under full 6A load with documented case temperature rise data across input/output conditions.

Key Specifications

Availability

MEZDPD4506A-8517 is available at Aetrix Electronics and suitable for industrial automation, semiconductor test equipment, and FPGA-based embedded systems requiring stable component supply during legacy design support and obsolescence transition phases.

Supply support for MEZDPD4506A-8517 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, Washington, with global design and support operations.

The mEZDPD4506A product line-including this evaluation board-is designed for digitally programmable, high-current DC/DC conversion in space-constrained, thermally demanding applications where flexibility in voltage, current limit, and protection behavior is critical.

FAQ

Is MEZDPD4506A-8517 a functional power supply out of the box?

No. MEZDPD4506A-8517 is an evaluation board that requires manual installation of the mEZDPD4506A module (e.g., mEZDPD4506A-0000) into its socket. Without the module, it provides no power conversion functionality-only interface and measurement infrastructure.

What software and hardware are required to program the board?

You must use Virtual Bench Pro 2.2 GUI (provided on Tdrive-mEZDPD4506A USB drive) and the EVKT-USBI2C-02 USB-to-I²C dongle with ribbon cable. The GUI auto-scans I²C devices and allows full register-level configuration of output voltage, current limit, switching frequency, and fault responses.

Does the board support analog feedback or only digital control?

The board supports both: the mEZDPD4506A module uses internal digital-to-analog conversion for closed-loop regulation, but the board also exposes FB, VINSEN+, VINSEN−, VOUTSEN+, and VOUTSEN− pins for optional external analog monitoring, calibration, or safety redundancy circuits.

What is the thermal performance under full 6A load?

At VIN=24V, VOUT=5V, 6A load, the board's case temperature rise is documented as ≤50°C above ambient (25°C). Layout includes thermal vias and copper pours aligned with the mEZDPD4506A module's exposed pad for direct heat transfer to internal layers.

Is the board RoHS-compliant and lead-free?

Yes. All components listed in the BOM-including Murata GRM32ER61H106KA12L capacitors, YAGEO RC1210FR-07100RL resistor, and Würth Elektronik 744311470 inductor-are RoHS 2015/863-compliant and lead-free, per MPS documentation and distributor certifications.

Can the board be used for production deployment?

No. MEZDPD4506A-8517 is strictly an evaluation tool. Its layout, component selection, and lack of conformal coating or extended reliability qualification preclude use in production. For volume applications, designers must integrate the mEZDPD4506A module directly into their custom PCBs following MPS layout guidelines.