Analog Devices Inc./Maxim Integrated MAX16731EVKIT#

Overview

MAX16731EVKIT# from Analog Devices is a fully assembled and tested evaluation kit for the MAX16731 monolithic 30A single-output POL regulator with integrated bias LDO, supporting 2.7V–16V input and 0.5V–5.8V programmable output voltage, optimized for high-power-density server, telecom, and AI accelerator applications.

For engineers reviewing the MAX16731EVKIT# datasheet, MAX16731EVKIT# configuration options, MAX16731EVKIT# test point layout, or MAX16731EVKIT# jumper settings for OCP/DCM/fSW selection, this page provides verified hardware setup guidance, performance validation data, and direct mapping between EV kit controls and underlying MAX16731 IC functionality.

Technical Context

The MAX16731EVKIT# implements the MAX16731 IC in a multilayer PCB layout optimized for thermal management and low-noise operation, featuring on-board test points (J2, J3, J10, J13, TP13–TP14) for VCC, AVDD, VDDH, LX, and Bode plot injection. It supports full parameter configuration via three physical interfaces: R2 resistor (PGM0), J1/J4 jumpers (PGM1/PGM2), and SW1 enable switch.

Hardware-level configurability includes six selectable voltage-loop gain scenarios (A–F), three OCP thresholds (28A/33A/38A), DCM enable/disable, DEM mode control, and PWM frequency tuning from 500kHz to 1500kHz - all validated through pre-assembled 95.3Ω R2 (Scenario A, 500kHz default).

Key Specifications

Availability

MAX16731EVKIT# is available at Aetrix Electronics and suitable for high-current power system validation, POL regulator qualification, and AI/ML accelerator board bring-up requiring stable component supply and proven reference design fidelity.

Supply support for MAX16731EVKIT# 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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving precision instrumentation, communications, automotive, and industrial markets.

The MAX16731 product line targets high-power-density point-of-load regulation in datacenter, networking, and AI hardware, emphasizing integration, thermal robustness, and configurable loop dynamics for fast transient response under dynamic loads.

FAQ

What is the default configuration of the MAX16731EVKIT# out of the box?

The MAX16731EVKIT# ships with R2 = 95.3Ω installed, configuring the MAX16731 for Scenario A and 500kHz switching frequency. J1 and J4 are open, setting OCP = 38A and disabling DCM mode. SW1 is in the OFF position, requiring manual enable before VIN application. This baseline config ensures safe first-power-up and aligns with typical high-efficiency, high-current use cases for the MAX16731EVKIT#.

How do I configure the MAX16731EVKIT# for 12V input and 1.2V output?

To configure the MAX16731EVKIT# for 12V input and 1.2V output, retain the default R2 = 95.3Ω (500kHz, Scenario A), ensure J1/J4 are open (38A OCP, DCM disabled), and adjust the feedback resistor divider: replace R13 with 10.2kΩ (keeping R9 = 3kΩ) per VOUT = 0.5V × (1 + R13/R9). Confirm connections at J5 (+VIN), J8 (GND), ST1 (+VOUT), and ST2 (GND) before enabling SW1. The MAX16731EVKIT# supports this configuration without hardware modification beyond R13.

Which test points on the MAX16731EVKIT# are used for measuring loop stability?

The MAX16731EVKIT# uses TP13 and TP14 - located in series with the feedback path and incorporating a 10Ω injection resistor - specifically for Bode plot acquisition. These test points allow direct connection to a network analyzer to measure open-loop gain and phase margin. J10 (VDDH) and J13 (LX) support waveform observation, but only TP13/TP14 provide calibrated access for control-loop characterization as defined in the MAX16731EVKIT# schematic and user guide.

Can the MAX16731EVKIT# evaluate DEM (Diode Emulation Mode) functionality?

Yes, the MAX16731EVKIT# supports DEM mode evaluation via PGM0-resistor-selected scenario: Scenarios A–C (RVGA = 15.7kΩ–31.3kΩ) have DEM enabled per Table 4, while D–F disable it. With R2 = 95.3Ω (Scenario A), DEM is active by default. To verify operation, monitor efficiency at light load (<2A) with DCM disabled (J1/J4 open) - DEM reduces switching losses while maintaining regulation, a behavior directly observable on the MAX16731EVKIT# using its onboard current/voltage measurement points.

Does the MAX16731EVKIT# include an electronic load or power supply?

No, the MAX16731EVKIT# does not include an external power supply or electronic load. Per the Quick Start guide, users must supply a 2.7V–16V input source rated for ≥10A and a low-voltage 30A electronic load for full functional testing. The MAX16731EVKIT# provides only the evaluation board, pre-assembled components, test points, and configuration jumpers - all external instrumentation must be sourced separately to operate or characterize the MAX16731EVKIT#.