Analog Devices Inc./Maxim Integrated MAX17761EVKITBE#

Overview

MAX17761EVKITBE# from Maxim Integrated is a fully assembled and tested evaluation kit designed to validate the MAX17761 high-voltage synchronous step-down DC-DC converter in 5V/1A output applications. It operates from 7.5V–76V input, delivers regulated 5V at up to 1A, features 400kHz switching frequency, adjustable UVLO/soft-start/frequency/current limit, and includes open-drain RESET and external clock synchronization.

For engineers reviewing the MAX17761EVKITBE# datasheet, MAX17761EVKITBE# pinout, MAX17761EVKITBE# application, or MAX17761EVKITBE# equivalent, this kit provides a CISPR22 Class B-compliant reference design with proven EMI-optimized layout, thermal performance validation, and complete test-ready functionality for industrial power supply prototyping.

Technical Context

The MAX17761EVKITBE# implements the MAX17761 IC in a fixed 5V output configuration using a 33µH power inductor (L1), 22µF input electrolytic capacitor (C1), and 22µF ceramic output capacitor (C9). It supports PWM/PEM mode selection via MODE/ILIM jumper JU2 and enables external synchronization through RT/SYNC pad with shuntable JU3.

Key control interfaces include EN/UVLO (JU1), soft-start (C6), and RESET monitoring pads. The board integrates an auxiliary bootstrap LDO, overcurrent/overtemperature protection, and provisions for optional EMI filtering (L2, C15/C16) to meet conducted/radiated emissions limits per CISPR22 Class B.

Key Specifications

Availability

MAX17761EVKITBE# is available at Aetrix Electronics and suitable for industrial power supply validation, high-voltage DC-DC prototyping, and EMI-compliant buck converter qualification requiring stable component supply and traceable sourcing.

Supply support for MAX17761EVKITBE# 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 systems.

The MAX17761EVKITBE# belongs to Maxim's high-voltage DC-DC evaluation platform family, engineered to accelerate development of robust, EMI-compliant power supplies for harsh-input environments like factory automation and railway systems.

FAQ

What is the primary function of the MAX17761EVKITBE#?

The MAX17761EVKITBE# is a ready-to-use evaluation kit that demonstrates the MAX17761 high-voltage synchronous step-down DC-DC converter operating at 5V/1A output. It validates performance across the full 7.5V–76V input range, provides access to all key control signals (EN/UVLO, SS, RT/SYNC, RESET), and serves as a layout reference for low-EMI, thermally efficient buck designs.

Does the MAX17761EVKITBE# support adjustable output voltage?

No, the MAX17761EVKITBE# is configured exclusively for 5V output using a fixed resistor divider on the FB pin. Output voltage adjustment requires modifying the feedback network - the board does not include provisions for variable resistors or DAC-based tuning, and its validation data, schematic, and BOM are all specified for 5V operation only.

Can the MAX17761EVKITBE# be synchronized to an external clock?

Yes, the MAX17761EVKITBE# supports external clock synchronization via the RT/SYNC PCB pad and jumper JU3. When JU3 is shorted, the MAX17761 synchronizes to an external clock signal applied to that node, forcing PWM-mode operation and enabling precise timing alignment with other system clocks or converters.

What EMI compliance level does the MAX17761EVKITBE# achieve?

The MAX17761EVKITBE# meets CISPR22 Class B limits for both conducted and radiated emissions when used with its optimized PCB layout and optional EMI filter components (L2, C15, C16). Test reports confirm compliance across 150kHz–30MHz (conducted) and 30MHz–1GHz (radiated) with measured margins shown in the official performance report.

Is the MAX17761EVKITBE# fully assembled and tested before shipment?

Yes, the MAX17761EVKITBE# ships fully assembled and factory-tested. All components listed in the Bill of Materials - including the MAX17761ATC+ IC (U1), power inductor L1, input/output capacitors, and jumpers JU1–JU3 - are populated and verified. No soldering or component placement is required for basic functional evaluation.