Analog Devices Inc./Maxim Integrated MAX17623EVKIT#

Overview

MAX17623EVKIT# from Maxim Integrated is an evaluation kit designed to validate the performance of the MAX17623 and MAX17624 1A synchronous step-down DC-DC converters. It supports input voltages from 2.9V–5.5V (MAX17623) or 3.6V–5.5V (MAX17624), delivers preset 1.5V/3.3V outputs, and features selectable PWM/PEM mode, PGOOD monitoring, and internal 1ms soft-start - used for power subsystem validation in compact industrial and embedded designs.

For engineers reviewing the MAX17623EVKIT# datasheet, MAX17623EVKIT# pinout, MAX17623EVKIT# application, or MAX17623EVKIT# equivalent, this kit enables rapid characterization of efficiency (up to 94.5% at 5V→3.3V/500mA), switching frequency (2MHz/4MHz), output voltage adjustability, thermal behavior, and mode-dependent light-load performance without custom PCB development.

Technical Context

The MAX17623EVKIT# hosts two electrically isolated converter circuits on a single PCB: one configured with the MAX17623 (1.5V output, 2MHz switching, 2.9V–5.5V input) and another with the MAX17624 (3.3V output, 4MHz switching, 3.6V–5.5V input). Each includes dedicated input/output pads, jumper-selectable EN and MODE control, and PGOOD pull-up to respective VIN rails.

It implements proven layout practices including low-ESR ceramic input capacitors (2.2µF), X7R output capacitors (22µF/10µF), and tantalum damping caps (47µF) for hot-plug and long-cable transient suppression. Feedback dividers (R101/R102, R201/R202) allow output voltage reprogramming per the IC datasheet guidelines.

Key Specifications

Availability

MAX17623EVKIT# is available at Aetrix Electronics and suitable for power converter evaluation, DC-DC design verification, and embedded power subsystem prototyping requiring stable component supply and traceable reference hardware.

Supply support for MAX17623EVKIT# 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, communications, and computing applications.

The MAX17623/MAX17624 product line targets space-constrained, high-efficiency point-of-load regulation - optimized for battery-powered and thermally sensitive systems where small size and light-load efficiency are critical.

FAQ

What does the MAX17623EVKIT# evaluate?

The MAX17623EVKIT# evaluates both the MAX17623 and MAX17624 1A synchronous step-down DC-DC converters on a single PCB. It provides preconfigured 1.5V (MAX17623) and 3.3V (MAX17624) outputs, jumper-selectable operation modes, and full test points for voltage, current, and PGOOD signal measurement - enabling immediate functional validation without design overhead.

Can the MAX17623EVKIT# be used to evaluate other ICs?

No - the MAX17623EVKIT# is specifically designed for the MAX17623 and MAX17624 only. Its layout, component values (e.g., feedback resistors R101/R102 and R201/R202), inductors (L101/L201), and input/output capacitor selections are optimized for those two devices' electrical characteristics and pinouts. Substituting other ICs is not supported.

How do I configure the MAX17623EVKIT# for PWM vs. PFM mode?

On the MAX17623EVKIT#, install shunts on jumpers JU102 (for MAX17623) or JU202 (for MAX17624) to enable PWM mode across all load conditions. Leave those jumpers open to operate in PFM mode at light loads. Default configuration is PFM (shunts uninstalled), as specified in Table 2 of the EV kit documentation.

Does the MAX17623EVKIT# include output voltage adjustment capability?

Yes - the MAX17623EVKIT# supports output voltage reprogramming via the feedback resistive dividers: R101/R102 for the MAX17623 path (0.8V–1.5V range) and R201/R202 for the MAX17624 path (1.5V–3.3V range). Resistor values must be recalculated using the formulas in the MAX17623/MAX17624 datasheet to set new target voltages.

What power supply requirements apply to the MAX17623EVKIT#?

The MAX17623EVKIT# requires a stable DC source: 2.9V–5.5V at ≥1A for the MAX17623 section, and 3.6V–5.5V at ≥1A for the MAX17624 section. Input connections must be made to the designated VIN/GND pads, and proper grounding and short leads are recommended to avoid oscillation - especially when using long cables or hot-plug sources.