Analog Devices Inc./Maxim Integrated MAXM17631EVKIT#

Overview

MAXM17631EVKIT# from Maxim Integrated is a fully assembled and tested evaluation kit designed to validate the MAXM17631 5V/1A uSLIC™ step-down power module under real operating conditions. It supports input voltages from 7V to 36V, operates at 1250kHz switching frequency, delivers up to 90.46% efficiency at 24V_IN/5V_OUT/1A, and complies with CISPR22 Class B conducted and radiated emissions standards. The kit enables rapid characterization of load transient response, startup behavior, output ripple, and stability in industrial power supply designs.

For engineers reviewing the MAXM17631EVKIT# datasheet, MAXM17631EVKIT# pinout, MAXM17631EVKIT# application, or MAXM17631EVKIT# equivalent, this kit provides immediate access to validated PCB layout, configurable operation modes (PWM/PFM/DCM), external clock synchronization, resistor-programmable UVLO, and EN/UVLO control - all critical for evaluating high-efficiency, low-noise DC-DC conversion in space-constrained embedded systems.

Technical Context

The MAXM17631EVKIT# hosts the MAXM17631AME+ module - a 16-pin uSLIC™ integrated power solution combining controller, MOSFETs, and inductor in a single surface-mount package. It implements constant-on-time (COT) control architecture for fast transient response and stable operation across wide input voltage ranges without loop compensation components.

On-board configuration options include jumper-selectable mode control (JU202), UVLO threshold programming via R201/R202 divider, RT-resistor-set switching frequency (R203 = 15kΩ → 1250kHz), and EXTVCC routing for improved efficiency at higher input voltages. The kit's EMI-optimized layout and integrated input/output filtering support repeatable compliance testing per CISPR22 Class B.

Key Specifications

Availability

MAXM17631EVKIT# is available at Aetrix Electronics and suitable for industrial automation, test equipment, medical instrumentation, and embedded computing applications requiring stable component supply, pre-validated power design reference, and fast time-to-test capability.

Supply support for MAXM17631EVKIT# 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

Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in analog, mixed-signal, and power management ICs for precision, reliability, and integration-critical applications.

The MAXM17631EVKIT# belongs to Maxim's uSLIC™ evaluation platform family, engineered to accelerate adoption of highly integrated, EMI-compliant DC-DC modules in space- and noise-sensitive industrial and medical systems.

FAQ

What does the MAXM17631EVKIT# evaluate?

The MAXM17631EVKIT# evaluates the MAXM17631AME+ 5V/1A uSLIC™ power module. It provides a complete, pre-assembled circuit with input/output filtering, mode selection jumpers, UVLO programming resistors, and synchronization capability - enabling immediate functional validation and performance benchmarking without custom PCB development.

Does the MAXM17631EVKIT# support external clock synchronization?

Yes, the MAXM17631EVKIT# supports external clock synchronization via the MODE/SYNC pin on U201 (MAXM17631AME+). When JU202 is left unshunted, an external clock signal between 1.1× and 1.4× the programmed switching frequency (1250kHz → 1.375–1.75MHz) can be applied to synchronize multiple modules and reduce beat-frequency noise in multi-rail systems.

How is undervoltage lockout configured on the MAXM17631EVKIT#?

UVLO on the MAXM17631EVKIT# is resistor-programmable using R201 (3.3MΩ) and R202 (715kΩ), setting a default enable threshold of 6.8V. Jumper JU201 controls connection: open → enabled above threshold; shunted pins 2–3 → disabled. This allows precise startup voltage tuning for battery-powered or variable-input applications using the MAXM17631EVKIT#.

Can the MAXM17631EVKIT# operate in PFM mode for light-load efficiency?

Yes, the MAXM17631EVKIT# operates in PFM mode by default when JU202 is left unshunted. This enables discontinuous conduction with reduced switching losses below ~200mA, improving light-load efficiency - critical for always-on subsystems. PWM and DCM modes are selected via shunt positions on JU202 as documented in Table 2 of the EV kit user guide.

Is the MAXM17631EVKIT# RoHS compliant and production-ready?

Yes, the MAXM17631EVKIT# is RoHS compliant (#Denotes RoHS compliance per datasheet) and shipped fully assembled and tested. Its PCB layout, component selection (e.g., Murata GRM32ER71E226KE15 output caps), and EMI filter design are production-grade - making it suitable not only for lab evaluation but also as a reference for final system design and regulatory pre-compliance testing.