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

Overview

EVM3695-100-BH-00C from Monolithic Power Systems is a 4-module scalable DC/DC power module evaluation board designed to demonstrate the MPM3695GBH-100, a fully integrated 100A per-phase BGA power module with PMBus 1.3 interface. It supports 3.3V–16V input, 0.5V–3.3V output, up to 400A total output current, and enables active current balancing and automatic interleaving across four parallel phases.

For engineers reviewing the EVM3695-100-BH-00C datasheet, EVM3695-100-BH-00C pinout, EVM3695-100-BH-00C application, or EVM3695-100-BH-00C equivalent, this board serves as a validated platform for evaluating high-current digital power delivery in FPGA/ASIC core rails, telecom infrastructure, and server VRMs - with telemetry readback (VIN, VOUT, IOUT, temperature), remote sense, and Virtual Bench Pro 3.0 GUI configuration support.

Technical Context

The EVM3695-100-BH-00C implements four MPM3695GBH-100 modules in master-slave topology using MPS's proprietary multi-phase constant-on-time (MCOT) control. Each module delivers up to 100A at ≤1.8V or 60A at 3.3V, with ±1% VREF accuracy over –40°C to +125°C and configurable switching frequency (600kHz default).

It provides full PMBus 1.3 compliance for real-time telemetry, fault reporting, and register-level configuration-including VOUT_COMMAND, VOUT_SCALE_LOOP, and MTP-programmable settings-enabling precise voltage scaling, dynamic load response validation, and thermal derating analysis under ambient conditions up to 100°C.

Key Specifications

Availability

EVM3695-100-BH-00C is available at Aetrix Electronics and suitable for FPGA power delivery, telecom baseband processing, and AI accelerator board development requiring stable component supply, rapid prototyping validation, and digital power system integration.

Supply support for EVM3695-100-BH-00C 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 design centers in the US, China, and Taiwan, and global manufacturing partnerships.

This evaluation board belongs to MPS's scalable digital power module product line, engineered specifically for high-current, digitally controlled point-of-load (POL) applications in datacenter, networking, and high-end computing systems where precision, telemetry, and multi-phase scalability are critical.

FAQ

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

EVM3695-100-BH-00A integrates one MPM3695GBH-100 module (100A max), -00B uses two modules (200A), and -00C uses four modules (400A). All share identical input/output specs, PMBus interface, and MCOT control architecture but differ in phase count, component count (e.g., 4× U1–U4 on -00C), and thermal layout for respective current ratings.

Does the EVM3695-100-BH-00C support remote voltage sensing?

Yes - it implements differential remote sense (VOSNS_P/VOSNS_N) on each module, routed to dedicated feedback pins on the master and slave ICs. This ensures <±1% output regulation under high-current load conditions by compensating for PCB IR drop.

Can I configure output voltage without external resistors?

Yes - VOUT can be set digitally via PMBus commands (VOUT_COMMAND and VOUT_SCALE_LOOP registers) without modifying feedback resistors. The default 1.2V startup is software-configurable, and values persist in MTP memory after "Write to MTP" with VIN ≥8V.

What communication interface is required for Virtual Bench Pro 3.0?

A USB-to-I²C adapter (EVKT-USBI2C-02) is mandatory. The board exposes SCL/SDA/ALT/GND pins via CN13; no UART or USB-native interface is present. Firmware updates and register access require this hardware bridge and proper address discovery (default 0x60, configurable).

How is current sharing balanced across the four modules?

Active current balancing is implemented via ISUM< and ISUM> signals routed between master and slaves, combined with synchronized MCOT timing and automatic interleaving. No external current-sense resistors or DACs are needed - balancing accuracy is ±3% typical per MPS characterization data.

Is the EVM3695-100-BH-00C RoHS-compliant and lead-free?

Yes - all components, including the MPM3695GBH-100 modules and passive parts, meet RoHS Directive 2011/65/EU. MPS confirms green status on its Quality Assurance portal, and the board uses lead-free solder paste and halogen-free laminates per IPC-4101D/126.