Analog Devices Inc./Maxim Integrated MAX17575EVKITB#

Overview

MAX17575EVKITB# from Maxim Integrated is an evaluation kit for the MAX17575 4.5V–60V, 1.5A synchronous step-down DC-DC converter with integrated MOSFETs, internal compensation, and fixed-frequency forced PWM operation. It supports adjustable output voltages from 0.9V to 0.9×VIN, delivers up to 1.5A continuous current over –40°C to +125°C ambient, and enables rapid validation of high-voltage industrial power designs using a pre-layout-optimized 12-pin TDFN reference design.

For engineers reviewing the MAX17575EVKITB# datasheet, MAX17575EVKITB# pinout, MAX17575EVKITB# application, or MAX17575EVKITB# equivalent, this kit provides verified thermal layout, RESET monitoring, hiccup-mode overload protection, soft-start programmability, and external clock synchronization - all critical for evaluating high-input-voltage buck converters in base station, distributed supply, and industrial control systems.

Technical Context

The MAX17575EVKITB# implements the MAX17575 IC in a fully assembled, tested, and characterized configuration with a 15µH inductor, 22µF/5.6nF/2.2µF ceramic output filter stack, 0.1µF BST capacitor, and 40.2kΩ RT/SYNC resistor setting f_SW = 500kHz. It validates peak-current-mode control, monotonic startup into prebiased loads, and auxiliary EXTVCC LDO bypass functionality under real-world transient and thermal conditions.

Kit-level features include open-drain RESET assertion at 92% V_OUT, deassertion at 95% after 1024 cycles, EN/UVLO threshold programmable via resistive divider, and thermal shutdown at +165°C with 10°C hysteresis - all measured and documented per JEDEC JESD51-7 four-layer board thermal characterization.

Key Specifications

Availability

MAX17575EVKITB# is available at Aetrix Electronics and suitable for industrial control power supplies, base station power supplies, and high-voltage single-board systems requiring stable component supply, full thermal validation, and production-ready reference design fidelity.

Supply support for MAX17575EVKITB# 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 MAX17575 product line delivers high-voltage, high-efficiency synchronous buck conversion for harsh-environment applications where wide VIN range, robust protection, and minimal external components are essential.

FAQ

What is the primary function of the MAX17575EVKITB#?

The MAX17575EVKITB# is a fully assembled evaluation kit for the MAX17575 synchronous step-down DC-DC converter. It enables engineers to validate performance, thermal behavior, and protection features-including hiccup-mode overload response, RESET timing, and soft-start into prebiased loads-without designing a custom PCB. The kit ships with optimized component selection, verified layout, and documented test data for immediate lab use.

Does the MAX17575EVKITB# support adjustable output voltage?

Yes, the MAX17575EVKITB# supports adjustable output voltage from 0.9V to 0.9×VIN via external feedback resistors. The default configuration delivers 5V at 1.5A, but users can reconfigure R1/R2 on the board to set other outputs such as 3.3V. The MAX17575's ±1.2% FB regulation accuracy over –40°C to +125°C ensures stable operation across temperature extremes.

Can the MAX17575EVKITB# be synchronized to an external clock?

Yes, the MAX17575EVKITB# supports external clock synchronization via the RT/SYNC pin. With the onboard 40.2kΩ resistor in place, the kit operates at 500kHz and can lock to an external clock between 1.1×f_SW and 1.4×f_SW (i.e., 550kHz–700kHz). Synchronization requires coupling the external signal through a capacitor and maintaining logic-high >2.1V, logic-low <0.8V, and pulse width >50ns.

What thermal performance data is provided with the MAX17575EVKITB#?

The MAX17575EVKITB# includes JEDEC JESD51-7-compliant thermal characterization: θ_JA = 41°C/W and θ_JC = 8.5°C/W on a four-layer board. The exposed pad (EP) is connected to a large GND plane with multiple thermal vias, enabling reliable operation at full 1.5A load up to +125°C ambient. Measured junction temperature remains below +150°C under worst-case conditions.

How does the MAX17575EVKITB# implement overload protection?

The MAX17575EVKITB# demonstrates the MAX17575's dual-stage overload protection: cycle-by-cycle peak current limiting at 2.45A (typ) and runaway current limiting at 2.75A (typ), which triggers hiccup mode. During hiccup, switching suspends for 32,768 half-cycles before retrying soft-start. This limits power dissipation during sustained short-circuit events while preserving long-term reliability.