Monolithic Power Systems Inc. EVM54313-BJ-00A

Overview

EVM54313-BJ-00A from Monolithic Power Systems is an evaluation board for the MPM54313 triple-output 3A power module, supporting 4–16V input and delivering up to 9A total across three independently configurable outputs with I²C/PMBus interface, constant-on-time control, and active voltage positioning for parallel operation in telecom, server, and FPGA power applications.

For engineers reviewing the EVM54313-BJ-00A datasheet, EVM54313-BJ-00A pinout, EVM54313-BJ-00A application, or EVM54313-BJ-00A equivalent, this board enables rapid validation of sequencing, AVP droop tuning, soft-start configuration, thermal performance under 9A parallel load, and register-level control via Virtual Bench Pro 3.0 GUI.

Technical Context

The EVM54313-BJ-00A implements the MPM54313's full feature set: triple 3A buck regulators with independent enable, programmable soft-start (0.1–20ms), configurable AVP slope (0–10mV/A), and interleaved dual-phase mode (6A) or tri-phase parallel mode (9A). It supports real-time telemetry including VOUT, IOUT, temperature, and fault status via PMBus commands.

Board-level design includes 8cm × 8cm × 1.5cm layout with dedicated test points (TP1–TP4), 10-pin I²C header (CN1), three output terminals (VOA/VOB/VOC), VIN sense, PG signal, and ADDR1/ADDR2 jumpers for I²C address selection (0x0F default). All power paths use low-ESR ceramic capacitors and optimized thermal vias beneath the BGA module.

Key Specifications

Availability

EVM54313-BJ-00A is available at Aetrix Electronics and suitable for FPGA core voltage sequencing, multi-rail server SoC power delivery, and high-density telecom baseband card development requiring stable component supply, rapid prototyping turnaround, and production-ready reference design validation.

Supply support for EVM54313-BJ-00A 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, with over two decades of expertise in DC/DC converters, modules, and digital power solutions for computing, automotive, and industrial markets.

The MPM54313 product line delivers fully integrated, digitally configurable power modules targeting space-constrained, high-reliability applications where analog-only solutions lack telemetry, flexibility, and multi-rail coordination capabilities.

FAQ

What software is required to configure the EVM54313-BJ-00A?

Virtual Bench Pro 3.0 is the official GUI tool provided by MPS for configuring the MPM54313 on this board. It requires the EVKT-USBI2C-02 USB-to-PMBus adapter and supports register read/write, telemetry monitoring, and MTP programming. No third-party drivers or firmware updates are needed beyond the bundled installer.

Can the EVM54313-BJ-00A operate with only one output enabled?

Yes - each output (VOA, VOB, VOC) has independent enable control via EN pins and can be powered down individually. The board's jumper settings and default firmware allow single-, dual-, or triple-output operation without hardware modification or resistor changes.

What is the maximum supported I²C clock frequency on this board?

The EVM54313-BJ-00A supports I²C communication up to 1MHz, matching the MPM54313's native PMBus timing specification. Signal integrity is maintained via 10kΩ pull-up resistors on SDA/SCL lines and short trace routing from CN1 to U1.

Does the board include input/output filtering components for EMC testing?

No - the board uses minimal external filtering (10μF–100μF ceramics and electrolytics) optimized for lab evaluation, not full CISPR-32 compliance. For EMC validation, users must add ferrite beads, common-mode chokes, and Y-capacitors per their system-level requirements.

How is thermal performance measured on the EVM54313-BJ-00A?

Case temperature (T_CASE) is measured directly on the top-center of the MPM54313 BGA package using a calibrated thermocouple. Test data shows 81.5°C at 9A, 12V_IN, 3.3V_OUT, ambient 26.7°C, with no forced airflow - confirming thermal pad soldering quality and copper pour effectiveness.

Are the output voltages factory-programmed or user-configurable?

All three outputs are factory-set to 3.36V but fully user-configurable via I²C register writes (VOUT_COMMAND). Voltage range is 0.5V–5.5V in 10mV steps, with internal DAC resolution enabling precise AVP slope and margining control without external resistor dividers.