Monolithic Power Systems Inc. PKT-MEZDPD4506A-84D8

Overview

PKT-MEZDPD4506A-84D8 from Monolithic Power Systems is an evaluation kit for the mEZDPD4506A programmable 45V input, 6A buck DC/DC power module. It includes the EVmEZDPD4506A-00A evaluation board, one pre-configured mEZDPD4506A-0000 module (default 3.3V output), EVKT-USBI2C-02 USB-to-I²C interface, and Tdrive-mEZDPD4506A USB thumb drive with Virtual Bench Pro 2.2 GUI software. It supports digital configuration of output voltage (0.6–22V), switching frequency (600 kHz typical), current limit, and protection modes.

For engineers reviewing the PKT-MEZDPD4506A-84D8 datasheet, PKT-MEZDPD4506A-84D8 pinout, PKT-MEZDPD4506A-84D8 application, or PKT-MEZDPD4506A-84D8 equivalent, this kit enables rapid validation of high-efficiency, digitally programmable 45V/6A power delivery in industrial control, test equipment, and FPGA/ASIC auxiliary rails - with full I²C-based parameter tuning and real-time telemetry via Virtual Bench Pro.

Technical Context

The PKT-MEZDPD4506A-84D8 is a complete evaluation system built around the mEZDPD4506A module - a fully integrated, digitally programmable buck converter with embedded multiple-time programmable memory. It operates across 4–45V input and delivers 0.6–22V at up to 6A continuous output with peak efficiency of 94.4% at 24V_IN/12V_OUT.

Configuration and monitoring are performed via I²C using the Virtual Bench Pro 2.2 GUI, enabling dynamic adjustment of output voltage, switching frequency, overcurrent threshold, soft-start time, and fault response (OVP, UVP, OCP, thermal shutdown). The board implements full input/output sensing, PG signal, and EN control with external component flexibility per output voltage.

Key Specifications

Availability

PKT-MEZDPD4506A-84D8 is available at Aetrix Electronics and suitable for industrial automation, semiconductor test equipment, and FPGA/ASIC power sequencing requiring stable component supply, full digital configurability, and rapid prototyping support.

Supply support for PKT-MEZDPD4506A-84D8 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 centers.

The mEZDPD series targets digitally programmable, high-density DC/DC solutions for applications demanding flexible voltage rails, precise power sequencing, and field-upgradable firmware - especially where analog trimming or discrete PMICs lack scalability.

FAQ

Is the PKT-MEZDPD4506A-84D8 still in production?

No - the EVmEZDPD4506A-00A evaluation board included in this kit is marked "END OF LIFE" in its official revision 1.0 documentation (dated Feb 2019). MPS no longer manufactures or supports this specific evaluation platform, though legacy design-in remains possible with existing inventory.

What hardware is required to program the mEZDPD4506A module?

The EVKT-USBI2C-02 USB-to-I²C dongle (included) and a Windows PC running Virtual Bench Pro 2.2 (provided on the Tdrive-mEZDPD4506A USB stick) are mandatory. No JTAG or external programmer is needed - all configuration occurs over the onboard I²C bus.

Can the output voltage be set below 1.0V?

Yes - the mEZDPD4506A supports 0.6V minimum output voltage. However, achieving stable sub-1.0V regulation requires careful PCB layout, low-ESR output capacitors, and verification of feedback divider accuracy and noise immunity per the module's datasheet guidelines.

Does the kit include the mEZDPD4506A module?

Yes - the PKT-MEZDPD4506A-84D8 contains one mEZDPD4506A-0000 module pre-programmed to 3.3V output. The module is socketed on the EVmEZDPD4506A-00A board and can be manually replaced with other mEZDPD4506A variants or reprogrammed in-circuit.

What is the purpose of the FB resistor network on the board?

The 100Ω resistor at the FB pin (R100) is a feed-forward compensation component specified in the reference design. It works with the internal error amplifier and external RC network to stabilize loop response across load and line variations - not a simple voltage divider scaling element.

Is thermal performance validated for continuous 6A operation?

Yes - thermal imaging data in the official documentation shows ≤110°C case temperature rise at 24V_IN/5V_OUT/6A full load with standard 2-layer PCB and no forced airflow, confirming safe continuous operation within the module's rated junction limits.