Analog Devices Inc./Maxim Integrated MAX17640BEVKIT#

Overview

MAX17640BEVKIT# from Maxim Integrated is a fully assembled and tested evaluation kit designed to characterize the MAX17640B high-voltage synchronous step-down DC-DC converter, which operates from 7V to 60V input and delivers up to 400mA at a fixed 5V output with 500kHz switching frequency, adjustable UVLO, PWM/PEM mode selection, and open-drain RESET - used in industrial power supply validation and high-input-voltage embedded system design.

For engineers reviewing the MAX17640BEVKIT# datasheet, MAX17640BEVKIT# pinout, MAX17640BEVKIT# application, or MAX17640BEVKIT# equivalent, this kit enables rapid performance verification of the MAX17640B converter under real-world conditions including EMI compliance testing (CISPR32 Class B), load transient response, efficiency vs. load, startup behavior, and Bode stability analysis - all without PCB layout or component sourcing effort.

Technical Context

The MAX17640BEVKIT# hosts the MAX17640B IC in a standalone, electrically isolated application circuit on a shared PCB alongside MAX17640A and MAX17640C circuits. It implements a complete 5V fixed-output buck topology with integrated high-side/low-side MOSFETs, resistor-programmable EN/UVLO (default 7V startup), and jumper-selectable PWM/PEM operation via JU202.

Key supporting elements include a 68µH/0.8A power inductor (L202), 1µF/100V X7R input capacitor (C206), 22µF/6.3V X7R output capacitor (C209), optional 22µH EMI filter inductor (L201), and CISPR32-compliant layout with optimized hot-loop area and ground plane partitioning - validated by conducted/radiated emissions plots measured directly on the MAX17640BEVKIT#.

Key Specifications

Availability

MAX17640BEVKIT# is available at Aetrix Electronics and suitable for industrial power validation, high-voltage DC-DC characterization, and CISPR32 EMI pre-compliance testing requiring stable component supply and documented measurement traceability.

Supply support for MAX17640BEVKIT# 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) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, and communications applications - known for high-reliability, application-validated solutions.

The MAX17640 family targets high-input-voltage industrial power conversion, delivering robust, EMI-compliant, low-component-count buck regulation where input rails exceed 40V - with the MAX17640BEVKIT# serving as the reference platform for the 5V variant.

FAQ

What is the primary function of the MAX17640BEVKIT#?

The MAX17640BEVKIT# is an evaluation kit that provides a proven, fully assembled hardware platform to test and validate the electrical performance, thermal behavior, and EMI characteristics of the MAX17640B synchronous step-down DC-DC converter. It includes all necessary passive components, jumpers for configuration, and a layout optimized for CISPR32 Class B compliance - enabling immediate bench testing without custom PCB development.

Which converter does the MAX17640BEVKIT# evaluate?

The MAX17640BEVKIT# evaluates the MAX17640B integrated synchronous step-down converter (IC part number MAX17640BATA+), configured for fixed 5V output, 7V–60V input operation, and up to 400mA load current. It is one of three independent circuits on the board, co-located with MAX17640A (3.3V) and MAX17640C (adjustable 12V) evaluation sections.

Does the MAX17640BEVKIT# support EMI compliance testing?

Yes - the MAX17640BEVKIT# was explicitly measured and validated for CISPR32 Class B conducted and radiated emissions, with published plots labeled "MEASURED ON THE MAX17640BEVKIT#". Its layout, component selection (including optional L201/C202/C204 EMI filter), and grounding scheme are engineered to meet these limits across 150kHz–30MHz (conducted) and 30MHz–1GHz (radiated) bands.

How do I configure the MAX17640BEVKIT# for PWM versus PFM mode?

Use jumper JU202: leave it open to enable PFM mode (optimal light-load efficiency), or install a shunt across pins 1–2 to force PWM mode (constant frequency, better transient response). This setting directly controls the MODE pin of the MAX17640B IC and is documented in Table 2 of the evaluation kit data sheet.

Can the MAX17640BEVKIT# be used to evaluate other MAX17640 variants?

No - the MAX17640BEVKIT# is specifically configured for the MAX17640B (5V fixed output). While the physical board hosts three independent circuits (A/B/C), only the MAX17640B section - identified by U2, JU201/JU202 jumpers, C209 output cap, and L202 inductor - corresponds to the MAX17640BEVKIT# ordering identity. The MAX17640A and MAX17640C sections require their respective kits (MAX17640AEVKIT#, MAX17640C12EVKIT#) for official evaluation support.