Monolithic Power Systems Inc. EVM3695-10-MQ-10A

Overview

EVM3695-10-MQ-10A from Monolithic Power Systems is an evaluation board for the MPM3695-10 10A synchronous step-down DC/DC power module, supporting 4–16V input (extendable to 3.3V with external VCC), 0.5–5V adjustable output, and integrated PMBus interface for telemetry and configuration. It delivers up to 10A continuous current at default 1.2V output and includes on-board load transient test circuitry and SMA connector for ripple measurement.

For engineers reviewing the EVM3695-10-MQ-10A datasheet, EVM3695-10-MQ-10A pinout, EVM3695-10-MQ-10A application, or EVM3695-10-MQ-10A equivalent, this board enables rapid validation of high-density, PMBus-enabled power delivery in telecom, server, and FPGA power rails-especially where programmable voltage sequencing, real-time telemetry, and thermal-aware derating are required.

Technical Context

The EVM3695-10-MQ-10A implements a single-phase, integrated power stage based on the MPM3695-10 QFN41-10mm×10mm module, featuring internal high-side and low-side MOSFETs, integrated inductor, and PMBus-compliant I²C interface operating at 100 kHz–1 MHz. It supports full telemetry-including output voltage, current, temperature, and fault status-and allows dynamic adjustment of switching frequency (400–1000 kHz), output voltage, soft-start time, and overcurrent thresholds.

Board-level design includes 330μF bulk aluminum electrolytic (C1), six 47μF ceramic output capacitors (C4/C6/C7/C8/C9/C17), 0.1Ω current-sense resistor (R15), and dedicated test points for VOUT sense (VOSNS_P/VOSNS_N), load transient injection (Tran+, Tran−, Tran_Ctrl), and PMBus signals (SCL/SDA/ADDR). The board measures 64mm × 64mm and uses a 4-layer PCB with thermal vias under the module.

Key Specifications

Availability

EVM3695-10-MQ-10A is available at Aetrix Electronics and suitable for telecom infrastructure, AI accelerator card power validation, and industrial FPGA/ASIC core rail development requiring stable component supply, traceable evaluation hardware, and PMBus-based system-level power management integration.

Supply support for EVM3695-10-MQ-10A 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 integrated power stages, digital control, and energy-efficient DC/DC conversion.

The EVM3695-10-MQ-10A belongs to MPS's scalable, PMBus-enabled power module product line-designed specifically for high-current, space-constrained applications demanding programmable operation, telemetry visibility, and seamless integration into intelligent power systems.

FAQ

What is the primary function of the EVM3695-10-MQ-10A?

The EVM3695-10-MQ-10A is a fully assembled evaluation board for the MPM3695-10 10A DC/DC power module. Its purpose is to enable functional verification, performance characterization (efficiency, ripple, load transient), and PMBus register exploration-without requiring custom PCB design or layout.

Does the board support output voltage programming without external software?

No. Voltage programming requires the EVKT-USBI2C-02 USB-to-PMBus dongle and Virtual Bench Pro software. The board has no onboard potentiometer or DIP-switch voltage selection; all configuration is performed via PMBus commands sent from a host PC.

Can the EVM3695-10-MQ-10A be used in a multi-phase configuration?

No-it hosts only one MPM3695-10 module and lacks inter-phase synchronization signals (e.g., CLKOUT, PHASE_SYNC). Scalability refers to system-level parallel use of multiple EVM3695-10-MQ-10A boards under master PMBus control, not native interleaving on this board.

What thermal data is provided for the MPM3695-10 on this board?

The board includes thermal derating curves showing maximum output current vs. ambient temperature at 200 LFM airflow. Junction temperature is monitored via the module's internal diode sensor, accessible through PMBus register 0x8D (READ_TEMPERATURE_1), with ±1°C accuracy.

Is the SMA connector on the board intended for input or output measurement?

The SMA connector is wired directly to the VOUT net and is intended exclusively for measuring output voltage ripple and noise using an oscilloscope. It is not rated for power delivery or input signal injection.

What is the role of the "Tran+", "Tran−", and "Tran_Ctrl" test points?

These three test points form a dedicated load transient injection interface: Tran+ and Tran− connect to the gate of an external MOSFET switch (not included), while Tran_Ctrl provides TTL-level trigger to synchronize step-load transitions-enabling repeatable, high-slew-rate (20 A/µs) transient testing.