Monolithic Power Systems Inc. EVM3695-100-BH-00A

Overview

EVM3695-100-BH-00A from Monolithic Power Systems is a single-module evaluation board for the MPM3695GBH-100 scalable 100A DC/DC power module, supporting 3.3V–16V input and 0.5V–3.3V programmable output with PMBus 1.3 telemetry. It demonstrates ultra-fast transient response via MPS's multi-phase constant-on-time (MCOT) control and enables validation of high-current FPGA/ASIC core rail designs at up to 100A continuous output.

For engineers reviewing the EVM3695-100-BH-00A datasheet, EVM3695-100-BH-00A pinout, EVM3695-100-BH-00A application, or EVM3695-100-BH-00A equivalent, this board provides hands-on configuration of VOUT scaling, current sharing, remote sensing, and real-time telemetry (VIN, VOUT, IOUT, temperature, faults) using Virtual Bench Pro 3.0 and EVKT-USBI2C-02.

Technical Context

The EVM3695-100-BH-00A implements a master-controlled, single-phase configuration of the MPM3695GBH-100 BGA power module (15mm × 30mm × 5.18mm), operating at default 600kHz switching frequency with ±1% reference voltage accuracy across –40°C to +125°C. It supports VOUT remote sense and automatic PMBus-based fault reporting including overcurrent, overtemperature, and undervoltage lockout.

Its hardware design includes dedicated ISUM< and ISUM> terminals for current summation, SET< and SET> for feedback loop control, and TAKE/RUN/PASS/PG signals for phase synchronization and power-good sequencing - all exposed via test points and headers for lab-level characterization and system integration testing.

Key Specifications

Availability

EVM3695-100-BH-00A is available at Aetrix Electronics and suitable for telecom infrastructure, server power architecture validation, and high-performance computing development requiring stable component supply and rapid prototyping capability.

Supply support for EVM3695-100-BH-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-efficiency, integrated power solutions for industrial, computing, and communications applications.

The EVM3695-100-BH-00A belongs to MPS's scalable power module evaluation platform, designed specifically to accelerate adoption of their digitally controlled, high-current DC/DC modules in datacenter and AI accelerator power systems.

FAQ

What is the difference between EVM3695-100-BH-00A, -00B, and -00C?

EVM3695-100-BH-00A integrates one MPM3695GBH-100 module for 100A evaluation; -00B uses two modules for 200A; -00C uses four modules for 400A. All share identical firmware, PMBus interface, and layout topology-only module count and associated passive component population differ.

Does the board support parallel operation out of the box?

Yes-EVM3695-100-BH-00A is configured as the master unit with ISUM<, ISUM>, SET<, SET>, TAKE, RUN, PASS, and PG pins routed to headers. When used with EVM3695-100-BH-00B or -00C, it automatically enables interleaving and active current balancing per MPS application note AN-157.

How is output voltage set-hardware or software?

Both methods are supported: hardware via external resistor divider on FB pin (default 1.2V), or software via PMBus VOUT_COMMAND register after configuring VOUT_SCALE_LOOP. The reference voltage (0.6V nominal) is adjustable from 0.5V to 0.672V for fine-grained calibration.

Which communication interface is required for Virtual Bench Pro 3.0?

The EVKT-USBI2C-02 USB-to-I2C adapter is mandatory. It connects to the board's SCL/SDA pins (CN13 header) and provides level-shifted, isolated I2C signaling compatible with the MPM3695-100's 3.3V logic and PMBus timing requirements.

Can configuration changes be saved permanently?

Yes-register values written via "Write to chip" are volatile; to persist settings across power cycles, use "Write to MTP" (Multiple-Time Programmable memory), which requires VIN between 8V and 16V and completes in <500ms per write operation.

Is remote sensing implemented on this board?

Yes-VOSNS_P and VOSNS_N test points are provided adjacent to the VOUT output terminals, and the feedback network is routed with Kelvin connections to minimize PCB trace resistance impact on regulation accuracy.