Analog Devices Inc./Maxim Integrated MAX17573EVKITA#

Overview

MAX17573EVKITA# from Analog Devices is an evaluation kit designed to validate the MAX17573 synchronous step-down DC-DC converter in 3.3V/3.5A output applications, operating from 4.5V–60V input at 500kHz switching frequency, with programmable UVLO, soft-start, open-drain RESET, and external clock synchronization - used for industrial power supply validation and high-voltage embedded system design.

For engineers reviewing the MAX17573EVKITA# datasheet, MAX17573EVKITA# pinout, MAX17573EVKITA# application, or MAX17573EVKITA# equivalent, this kit supports rapid functional verification of MAX17573-based 3.3V power rails under wide-input, high-efficiency, EMI-compliant conditions - including enable control, mode selection (PWM/PFM/DCM), thermal performance, and CISPR 32 Class B emissions compliance.

Technical Context

The MAX17573EVKITA# implements a single-channel 3.3V/3.5A evaluation circuit using the MAX17573ATG+ TQFN-24 IC, featuring resistor-programmable EN/UVLO (4.3V rising threshold default), adjustable soft-start via external capacitor (e.g., 5600pF for 1ms), and open-drain RESET asserted when VOUT drops below 92% of nominal.

It supports three operating modes via jumper-selectable MODE/SYNC configuration (PWM default), external clock synchronization (requires jumper removal), and includes layout-optimized EMI filtering footprints compliant with CISPR 32 Class B conducted/radiated emissions - all on a fully assembled, tested PCB with isolated 3.3V and 5V sections.

Key Specifications

Availability

MAX17573EVKITA# is available at Aetrix Electronics and suitable for industrial power validation, high-voltage embedded system prototyping, and DC-DC converter qualification requiring stable component supply and pre-validated EMI performance.

Supply support for MAX17573EVKITA# 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 semiconductors, serving industrial, automotive, communications, and healthcare markets with precision power, sensing, and conversion solutions.

The MAX17573 evaluation kit belongs to Analog Devices' Himalaya power portfolio - engineered for rugged, high-efficiency DC-DC conversion in space-constrained, wide-input industrial and transportation systems.

FAQ

What does MAX17573EVKITA# evaluate?

MAX17573EVKITA# evaluates the MAX17573 synchronous step-down DC-DC converter in a 3.3V/3.5A configuration, supporting input voltages from 4.5V to 60V at 500kHz. It provides a fully assembled, tested platform with programmable UVLO, soft-start, RESET monitoring, and EMI-optimized layout - enabling rapid validation of MAX17573-based power designs before custom PCB spin.

Does MAX17573EVKITA# support external clock synchronization?

Yes, MAX17573EVKITA# supports external clock synchronization via dedicated MODE/SYNC PCB pads. When an external clock signal is applied and jumpers JU102/JU202 are left unshunted, the MAX17573 operates exclusively in PWM mode synchronized to that clock - allowing precise timing alignment in multi-rail or noise-sensitive systems.

How is the enable/UVLO threshold set on MAX17573EVKITA#?

On MAX17573EVKITA#, the enable/UVLO threshold is set by default to 4.3V (rising) using resistor dividers R101 (3.32MΩ) and R102 (1.3MΩ). The jumper JU101 is left open to engage this divider; installing a shunt across pins 2–3 disables the converter, while pins 1–2 connects EN directly to VIN for always-on operation.

What protection features are verified on MAX17573EVKITA#?

MAX17573EVKITA# validates overcurrent protection (hiccup-mode response), overtemperature shutdown, and input UVLO with hysteresis - all implemented per the MAX17573 IC's internal circuitry. These protections are observable during load transients and thermal stress tests, confirming robust operation under fault conditions.

Is MAX17573EVKITA# compliant with EMI standards?

Yes, MAX17573EVKITA# meets CISPR 32 Class B conducted and radiated emissions limits due to its optimized PCB layout, controlled switching node routing, and provision for optional EMI filter components (L102/L202 footprints). Test data confirms compliance at 24V input, 3.3V/3.5A output, and 500kHz switching frequency.