Monolithic Power Systems Inc. EVMPC1100A-54-00A

Overview

EVMPC1100A-54-00A from Monolithic Power Systems is an evaluation board for the MPC1100A-54-0000 fixed-ratio, non-isolated LLC/DCX power module, delivering 60A continuous output at 4–6V from a 40–60V input. It integrates MP2981 digital LLC controller and MP8500 synchronous rectifier, supports PMBus/I²C configuration, and features real-time monitoring of voltage, current, power, and temperature. Designed for datacenter DC distribution validation.

For engineers reviewing the EVMPC1100A-54-00A datasheet, EVMPC1100A-54-00A pinout, EVMPC1100A-54-00A application, or EVMPC1100A-54-00A equivalent, this board enables rapid characterization of high-efficiency, fixed-ratio DC/DC conversion with digital control, thermal protection, and bus-based configuration in high-end computing power architectures.

Technical Context

The EVMPC1100A-54-00A implements a 10:1 fixed-turn-ratio LLC resonant topology using the MPC1100A-54-0000 module, enabling zero-voltage switching (ZVS) across wide load ranges. Input voltage range is 40–60V, output is regulated to 4–6V with up to 60A continuous current.

Digital control is handled by the onboard MP2981 controller, supporting PMBus v1.3 commands for configuration, telemetry, and fault reporting. Protection includes VIN UVLO, VOUT OVP/UVP, OCP_TDC/OCP_SPIKE, and OTP - all implemented in hardware and firmware.

Key Specifications

Availability

EVMPC1100A-54-00A is available at Aetrix Electronics and suitable for datacenter power architecture validation, high-end computing system prototyping, and DC distribution network testing requiring stable component supply and documented reference design fidelity.

Supply support for EVMPC1100A-54-00A 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 and modules, with expertise in DC/DC conversion, motor drivers, and battery management solutions.

The MPC1100A product line delivers fixed-ratio, non-isolated, digitally controlled power modules targeting high-density, high-efficiency intermediate bus conversion in AI accelerators, server VRMs, and telecom infrastructure.

FAQ

Is EVMPC1100A-54-00A recommended for new designs?

No. MPS explicitly states "NOT RECOMMENDED FOR NEW DESIGNS" and directs users to EVMPC1100C-54-00A as the updated evaluation platform. This reflects obsolescence of the underlying MPC1100A-54-0000 module in favor of the C-series with enhanced efficiency, thermal performance, and firmware features.

What power module does EVMPC1100A-54-00A evaluate?

EVMPC1100A-54-00A evaluates the MPC1100A-54-0000 - a monolithic, non-isolated LLC/DCX power card with fixed 10:1 transformer ratio, 27 mm × 18 mm × 6 mm package, and integrated MP2981 controller + MP8500 synchronous rectifier.

Does the board support real-time telemetry?

Yes. The board provides PMBus/I²C-accessible telemetry for input voltage, output voltage, output current, output power, and internal temperature - all reported via the MP2981 controller's digital interface per PMBus v1.3 specification.

What protections are implemented on this evaluation board?

Hardware and firmware protections include VIN under-voltage lockout (UVLO), output over-voltage (OVP) and under-voltage (UVP) protection, two-tier over-current protection (OCP_TDC and OCP_SPIKE), and over-temperature protection (OTP) with automatic shutdown and recovery behavior.

Can the output voltage be adjusted dynamically?

Yes. Output voltage is programmable from 4 V to 6 V via PMBus VOUT_COMMAND register, enabling dynamic rail scaling during system validation without hardware modification or resistor changes.

What is the role of the blue LED (D1) on the board?

The blue LED (D1) serves as a power-good indicator, driven by the PG (Power Good) signal from the MPC1100A-54-0000 module - it illuminates when output voltage is within regulation and all fault conditions are cleared.