Monolithic Power Systems Inc. EVM3682-RE-00A

Overview

EVM3682-RE-00A from Monolithic Power Systems is an evaluation board designed to demonstrate the MPM3682 10A step-down power module, featuring integrated MOSFETs and inductor in a 12×12×4 mm QFN package, delivering regulated 1.0/1.2/1.5/1.8 V outputs from 8–18 V input, with adaptive COT control and full protection suite (OCP/OVP/UVP/thermal shutdown), used for telecom base station and server power validation.

For engineers reviewing the EVM3682-RE-00A datasheet, EVM3682-RE-00A pinout, EVM3682-RE-00A application, or EVM3682-RE-00A equivalent, this board enables rapid characterization of the MPM3682's transient response, efficiency across load range (0–10 A), soft-start behavior (default 3 ms), and pre-bias startup capability under real-world thermal and layout conditions.

Technical Context

The EVM3682-RE-00A implements the MPM3682 power module in a fully assembled, tested PCB layout optimized for low-noise, high-efficiency DC/DC conversion. It supports external output voltage selection via jumper configuration (1.0 V, 1.2 V, 1.5 V, or 1.8 V) and operates across 8–18 V input with internal biasing or down to 4.5 V using external 5 V bias.

Adaptive constant-on-time (COT) control ensures ultrafast transient response and stable regulation over 0°C to 70°C junction temperature, while non-latch OCP, OVP, and thermal shutdown provide fault resilience during lab testing and prototype integration into distributed power systems.

Key Specifications

Availability

EVM3682-RE-00A is available at Aetrix Electronics and suitable for telecom base station power validation, server VRM prototyping, and flat-panel display DC/DC subsystem testing requiring stable component supply and documented reference performance.

Supply support for EVM3682-RE-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 analog and power ICs, with core expertise in DC/DC conversion, motor drivers, and LED lighting controllers.

The MPM3682 product line delivers fully integrated, high-current power modules targeting space-constrained, thermally demanding applications in networking infrastructure and computing platforms where reliability and fast transient response are critical.

FAQ

What is the primary purpose of the EVM3682-RE-00A?

The EVM3682-RE-00A is a functional evaluation board built around the MPM3682 10A step-down power module. Its purpose is to enable engineers to verify electrical performance-including efficiency, transient response, thermal behavior, and protection functionality-under real operating conditions before integrating the module into end equipment.

Can the output voltage be adjusted beyond the four preset values?

Yes. While jumpers configure 1.0 V, 1.2 V, 1.5 V, or 1.8 V, the MPM3682 supports output adjustment from 0.65 V to 5 V via external resistor divider on the FB pin. The board's schematic and BOM include footprint and routing for custom feedback networks.

Is the EVM3682-RE-00A suitable for new designs?

No. Monolithic Power Systems explicitly states "NOT RECOMMENDED FOR NEW DESIGNS" and directs users to EVM3683-10-MN-01A. This reflects obsolescence of the underlying MPM3682 module in favor of newer-generation devices with improved efficiency and feature sets.

What input voltage configurations does the board support?

The board accepts 8–18 V directly. For inputs below 8 V (down to 4.5 V), the EN pin must be biased externally using a resistor divider or dedicated 5 V rail, as the internal EN threshold is derived from VIN and limits minimum operation without modification.

Does the board include thermal monitoring or reporting features?

No. The EVM3682-RE-00A provides thermal shutdown protection but lacks onboard temperature sensors, analog monitoring pins, or digital telemetry. Thermal performance must be assessed using external IR imaging or thermocouples placed on the MPM3682 QFN package and critical PCB copper areas.

Are test points and probe access provided for key signals?

Yes. The board includes dedicated 2.54 mm pitch test point headers for VIN, VOUT, EN, PG, and FB nodes, plus banana jacks for high-current input/output connections, enabling oscilloscope probing, load switching, and signal injection without soldering or wire wrapping.