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

Overview

EVM3695-100-BH-00D from Monolithic Power Systems is a 16V-input, 600A-output scalable DC/DC power module evaluation board designed to demonstrate the MPM3695-100 digital power module. It integrates six MPM3695-100 modules in BGA (15mm×30mm×5.18mm) packaging, supports 1.2V output at up to 600A, operates from 4–16V input, and delivers 91% peak efficiency at 12V_IN/1.2V_OUT/50A per module for high-density server and AI accelerator power delivery.

For engineers reviewing the EVM3695-100-BH-00D datasheet, EVM3695-100-BH-00D pinout, EVM3695-100-BH-00D application, or EVM3695-100-BH-00D equivalent, this board enables rapid validation of parallelized digital PMBus-controlled power stages, transient load testing via integrated op-amp-driven MOSFET circuitry, and configuration via Virtual Bench Pro 4.0 GUI with EVKT-USBI2C-02 interface.

Technical Context

The EVM3695-100-BH-00D implements a six-module parallel configuration of the MPM3695-100, each operating at 600kHz switching frequency with digital PMBus (SMBus-compatible) control. It features dedicated voltage sense (VOSNS_P/N), current sum (ISUM<>), and set-point (SET<>) interconnects between modules for synchronized regulation and fault coordination.

Its transient test circuit uses dual ADA4891-1 op-amps driving Q1/Q2 MOSFETs with 20mΩ shunt resistors to generate controlled load steps up to 600A, minimizing parasitic inductance effects through localized layout and SMA-connected IO_TRANS terminals.

Key Specifications

Availability

EVM3695-100-BH-00D is available at Aetrix Electronics and suitable for AI accelerator power validation, high-performance server VRM prototyping, and multi-phase digital POL development requiring stable component supply and full design-in support.

Supply support for EVM3695-100-BH-00D 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 for computing, cloud, automotive, and industrial applications.

The EVM3695-100-BH-00D belongs to MPS's scalable digital power module evaluation platform, engineered specifically to accelerate adoption of the MPM3695 family in high-current, digitally controlled point-of-load applications demanding precision, repeatability, and system-level interoperability.

FAQ

What input voltage range does the EVM3695-100-BH-00D support?

The board accepts 4V to 16V DC input, verified across all six parallel MPM3695-100 modules. Operation below 4V disables regulation; above 16V risks damage to input capacitors and module internal circuitry. Input must be applied before enabling CTRL to prevent latch-off.

How is output voltage configured on this evaluation board?

VOUT is set digitally via the VOUT_COMMAND register and analog feedback using R7/R10 resistor divider. Default is 1.2V with VREF = 0.6V; VREF is adjustable from 0.5V to 0.672V. Configuration requires writing GFB to VOUT_SCALE_LOOP and VOUT_COMMAND, followed by volatile memory write.

Does the board support transient load testing?

Yes - it includes a dedicated transient circuit with two ADA4891-1 op-amps driving Q1/Q2 MOSFETs and 20mΩ shunts. Users can inject pulse signals into CTRL_TRANS or drive via op-amp inputs to generate controlled 600A load steps with sub-100μs conduction time.

Which software and hardware are required to configure the board?

Virtual Bench Pro 4.0 GUI is mandatory, used with the EVKT-USBI2C-02 USB-to-I2C adapter. The board's PMBus interface (SCL/SDA/VCC/GND) connects directly to the adapter. No additional firmware or drivers beyond the official MPS Virtual Bench installer are needed.

Can the EVM3695-100-BH-00D be used with eight modules?

No - the EVM3695-100-BH-00D is the six-module variant (600A). The eight-module version is the EVM3695-100-BH-00E (800A); they share identical layout topology and firmware but differ in populated module count and current-sense resistor values.

What protection features are implemented on the board?

Each MPM3695-100 module provides overcurrent (OC), overtemperature (OT), undervoltage lockout (UVLO), and output overvoltage (OVP) protection. Fault status is reported via PMBus registers and visual indicators (red CH0 circle in Virtual Bench GUI) - no external circuitry is required for basic protection.