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

Overview

EVM3695-100-BH-00B from Monolithic Power Systems (MPS) is a dual-module evaluation board for the MPM3695GBH-100 scalable 100A DC/DC power module, supporting up to 200A output with active current balancing and PMBus 1.3 telemetry. It operates from 3.3V–16V input, delivers 0.5V–3.3V output, and features multi-phase constant-on-time (MCOT) control, remote sense, and configurable VOUT via resistor divider or PMBus commands.

For engineers reviewing the EVM3695-100-BH-00B datasheet, EVM3695-100-BH-00B pinout, EVM3695-100-BH-00B application, or EVM3695-100-BH-00B equivalent, this board enables rapid validation of high-current, digitally controlled point-of-load (POL) power delivery for FPGA, ASIC, server, and telecom systems - especially where parallel scalability, thermal derating behavior, and real-time telemetry (VIN/VOUT/IOUT/temperature/faults) are critical selection criteria.

Technical Context

The EVM3695-100-BH-00B integrates two MPM3695GBH-100 BGA modules (15mm × 30mm × 5.18mm) in master-slave configuration, enabling automatic interleaving and active current balancing across phases. Its MCOT control architecture delivers ultra-fast transient response without external compensation components.

Communication occurs over PMBus 1.3 via dedicated SCL/SDA lines, supporting full telemetry readback, VOUT_COMMAND register writes, VOUT_SCALE_LOOP configuration, and MTP memory programming for persistent settings. The board includes dedicated jumpers for phase enablement, ISUM/SET signal routing, and PG signal aggregation.

Key Specifications

Availability

EVM3695-100-BH-00B is available at Aetrix Electronics and suitable for FPGA power validation, server VRM prototyping, and telecom POL development requiring stable component supply, repeatable lab testing, and scalable multi-phase reference design support.

Supply support for EVM3695-100-BH-00B 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 integrated power modules, with a focus on efficiency, miniaturization, and digital control.

The EVM3695-100-BH-00B belongs to MPS's scalable DC/DC evaluation platform family, designed specifically to accelerate adoption of their high-current, PMBus-enabled power modules in demanding computing and infrastructure applications.

FAQ

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

EVM3695-100-BH-00A contains one MPM3695GBH-100 module (100A max), -00B contains two modules (200A max), and -00C contains four modules (400A max). All share identical layout topology, PMBus interface, and jumper-based phase enablement logic - allowing incremental scalability testing on the same firmware and GUI workflow.

Does the board support remote voltage sensing?

Yes - the EVM3695-100-BH-00B implements VOUT remote sense using dedicated VOSNS_P and VOSNS_N terminals routed to each module's sense inputs. This compensates for PCB trace IR drop and ensures accurate regulation at the load point under high-current conditions.

How is output voltage configured - analog or digital only?

Both methods are supported: analog configuration uses an external resistor divider on the FB pin (with R11 calculated per Equation 1), while digital configuration uses Virtual Bench Pro 3.0 to write to VOUT_COMMAND and VOUT_SCALE_LOOP registers. Default VREF is 0.6V, adjustable from 0.5V to 0.672V.

What communication interface is required to use PMBus functionality?

A USB-to-I2C adapter (EVKT-USBI2C-02) is required, connecting via 10-pin ribbon cable to the board's PMBus header (CN13). Virtual Bench Pro 3.0 GUI detects the MPM3695-100 automatically when powered and properly addressed; manual address entry (0x40–0x4F) is supported if auto-detection fails.

Can the board operate with only one module populated?

Yes - the EVM3695-100-BH-00B can be operated in single-module mode by removing the slave module and configuring jumpers R13/R15/R17 to isolate ISUM/SET signals. The master module retains full PMBus functionality, telemetry, and regulation capability at 100A.

Is MTP memory programming supported on this evaluation board?

Yes - configuration values (e.g., VOUT_COMMAND, VOUT_SCALE_LOOP) can be written to multiple-time programmable (MTP) memory using Virtual Bench Pro 3.0's "Write to MTP" function. Input voltage must be 8V–16V during MTP write, and power must be cycled to activate stored settings.