Analog Devices Inc./Maxim Integrated MAX17572EVKITB#

Overview

MAX17572EVKITB# from Maxim Integrated is an evaluation kit for the MAX17572 4.5V–60V, 1A synchronous step-down DC-DC converter with integrated MOSFETs, internal compensation, and peak current-mode control. It supports adjustable output voltages from 0.9V to 0.9×VIN, delivers >92% peak efficiency, and operates across –40°C to +125°C ambient temperature - validated for industrial point-of-load and base station power supply design.

For engineers reviewing the MAX17572EVKITB# datasheet, MAX17572EVKITB# pinout, MAX17572EVKITB# application, or MAX17572EVKITB# equivalent, this kit enables rapid validation of high-voltage buck regulation, soft-start timing, hiccup-mode overload protection, RESET assertion thresholds, and external clock synchronization at up to 2.2MHz - all using the production-grade MAX17572 IC in its 12-pin TDFN (3mm × 3mm) package.

Technical Context

The MAX17572EVKITB# implements the full functional block diagram of the MAX17572 IC, including its dual-LDO architecture (VCC powered from VIN or EXTVCC), peak-current-mode PWM controller with slope compensation, and integrated high-side/low-side MOSFET drivers. It replicates the device's RT/SYNC programmable oscillator (400kHz–2.2MHz), adjustable EN/UVLO threshold (1.09V–1.215V), and monotonic startup into prebiased loads.

This kit validates critical system-level behaviors: open-drain RESET assertion at 92% VOUT and de-assertion at 95% VOUT with 1024-cycle delay; thermal shutdown at +165°C with 10°C hysteresis; hiccup-mode recovery after 32,768 cycles; and robust operation under 1A continuous load with ±1.2% FB regulation accuracy over full temperature range.

Key Specifications

Availability

MAX17572EVKITB# is available at Aetrix Electronics and suitable for industrial control power supplies, distributed supply regulation, and high-voltage single-board systems requiring stable component supply and rapid prototyping capability.

Supply support for MAX17572EVKITB# 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 high-performance analog, mixed-signal, and power management ICs for industrial, automotive, and communications applications.

The MAX17572 product line delivers high-voltage, high-efficiency synchronous buck conversion for demanding industrial environments - optimized for wide-input-range point-of-load regulation with minimal external components and robust fault protection.

FAQ

What is the primary function of the MAX17572EVKITB#?

The MAX17572EVKITB# is a fully assembled and tested evaluation kit for the MAX17572 synchronous step-down DC-DC converter. It enables engineers to validate performance parameters - including efficiency, transient response, soft-start behavior, RESET timing, and external clock synchronization - without designing custom PCBs. The kit uses the production MAX17572 IC in its 12-pin TDFN package and includes all necessary passive components, layout-optimized power paths, and test points for real-time measurement.

Does the MAX17572EVKITB# support adjustable output voltage?

Yes, the MAX17572EVKITB# supports fully adjustable output voltage from 0.9V to 0.9×VIN using an external resistor divider connected to the FB pin. The kit includes jumpers and test points to easily modify R4/R5 values, and documentation provides exact formulas for calculating resistor values based on target VOUT and output capacitance derating - ensuring accurate regulation within ±1.2% over –40°C to +125°C.

Can the MAX17572EVKITB# be synchronized to an external clock source?

Yes, the MAX17572EVKITB# supports external clock synchronization via the RT/SYNC pin. An external pulse train (logic-high >2.1V, logic-low <0.8V, pulse width ≥50ns) can be coupled through a capacitor network to lock the MAX17572's switching frequency to the external source. The kit includes designated pads and routing for this interface, and the MAX17572 datasheet specifies that synchronization occurs after detecting 16 external edges - enabling precise timing alignment in multi-rail systems.

How does the MAX17572EVKITB# implement overload protection?

The MAX17572EVKITB# demonstrates the MAX17572's dual-stage overload protection: cycle-by-cycle peak current limiting (1.75A typical) and runaway current limiting (2A typical), which triggers hiccup mode after one occurrence. During hiccup, switching halts for 32,768 clock cycles before soft-start re-attempts. This behavior is fully observable on the kit via LX waveform and RESET pin activity, and it remains active under short-circuit conditions while maintaining <4.65µA shutdown current.

Is thermal performance validated on the MAX17572EVKITB#?

Yes, the MAX17572EVKITB# validates thermal performance per the MAX17572's specifications: junction-to-ambient thermal resistance (θJA) of 41°C/W on a four-layer board, thermal shutdown at +165°C with 10°C hysteresis, and continuous 1A operation over –40°C to +125°C ambient. The kit's layout includes the exposed pad (EP) soldered to a large GND plane with thermal vias - matching the recommended thermal design in the MAX17572 datasheet and enabling reliable high-power operation.