Analog Devices Inc./Maxim Integrated MAX17558EVKIT#

Overview

MAX17558EVKIT# from Maxim Integrated is an evaluation kit for the MAX17558 dual-output synchronous step-down controller, designed to validate 4.5V–60V input, 0.8V–24V dual-output power supply designs with up to 20A combined output current. It supports in-phase or 180° out-of-phase operation, adjustable 100kHz–2.2MHz switching frequency, and independent soft-start, enabling rapid prototyping of industrial DC/DC converters.

For engineers reviewing the MAX17558EVKIT# datasheet, MAX17558EVKIT# setup guide, MAX17558EVKIT# test procedure, or MAX17558EVKIT# component bill-of-materials, this kit provides verified reference design, thermal performance data, and functional validation of dual-phase interleaving, DCM/PWM mode selection, and prebiased startup behavior under real load conditions.

Technical Context

The MAX17558EVKIT# implements the MAX17558 IC in a fully assembled, tested 32-pin TQFN (5mm × 5mm) layout with dual high-side/low-side gate drivers, bootstrap circuitry, and dual current-sense paths (RSENSE or DCR). It integrates discrete MOSFETs, input/output filtering, feedback dividers, and configurable jumpers for EN_, SKIP, SEL_PH, and ILIM settings.

It enables direct measurement of key system-level behaviors: 180° phase-shifted input ripple reduction, current foldback during short-circuit events, PGOOD timing alignment, and thermal derating across -40°C to +125°C ambient - all while supporting both PWM and DCM operating modes via SKIP pin configuration.

Key Specifications

Availability

MAX17558EVKIT# is available at Aetrix Electronics and suitable for industrial power supplies, distributed DC systems, motion control subsystems, and programmable logic controller (PLC) power rails requiring stable component supply, full design validation support, and production-ready reference schematics.

Supply support for MAX17558EVKIT# 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 high-performance analog, mixed-signal, and power management solutions for industrial, automotive, and communications applications.

The MAX17558 product line delivers rugged, wide-input-range synchronous controllers for demanding industrial DC/DC conversion - engineered for reliability across -40°C to +125°C, EMI-sensitive environments, and high-current density PCB layouts.

FAQ

What is the primary function of the MAX17558EVKIT#?

The MAX17558EVKIT# is a fully assembled evaluation platform for the MAX17558 dual-output synchronous step-down controller. It enables hardware validation of 4.5V–60V input, dual-rail (0.8V–24V) power supply designs - including interleaved 20A operation, DCM/PWM mode switching, and prebiased startup - using industry-standard test points and configurable jumpers.

Does the MAX17558EVKIT# include the MAX17558 IC?

Yes, the MAX17558EVKIT# includes one MAX17558 IC mounted in a 32-pin TQFN-EP package. The board also integrates external components required for full operation: dual high-side/low-side MOSFETs, input/output capacitors, inductors, current-sense resistors, feedback dividers, and bootstrap circuitry - all optimized per Maxim's reference design guidelines.

Can the MAX17558EVKIT# demonstrate 180° out-of-phase operation?

Yes, the MAX17558EVKIT# supports 180° out-of-phase operation via the SEL_PH jumper. When configured, it reduces input capacitor RMS current and lowers input ripple amplitude - a key benefit verified through oscilloscope measurements of LX1 and LX2 waveforms and input capacitor temperature rise under full load.

How is light-load efficiency evaluated using the MAX17558EVKIT#?

The MAX17558EVKIT# allows direct comparison of DCM vs. PWM mode efficiency at light loads (e.g., 100mA–1A) by reconfiguring the SKIP pin voltage. Efficiency curves (e.g., Figure toc03/toc04) are pre-measured on the kit, and test points enable real-time inductor current waveform capture to confirm zero-crossing detection and cycle-skipping behavior in DCM mode.

Is thermal performance data available for the MAX17558EVKIT#?

Yes, the MAX17558EVKIT# documentation includes thermal imaging results and junction-to-ambient (θJA = 29°C/W) and junction-to-case (θJC = 1.7°C/W) measurements per JEDEC JESD51-7. The board uses an exposed-pad layout with multiple thermal vias to a solid inner ground plane - validated under 20A continuous load at +70°C ambient.