Analog Devices Inc./Maxim Integrated MAX17242EVKIT#

Overview

MAX17242EVKIT# from Maxim Integrated is an evaluation kit for the MAX17242 2A synchronous step-down DC-DC converter, supporting input voltages from 3.5V to 36V and delivering a fixed 3.3V or 5V output (±2% accuracy) with 93% peak efficiency, 15µA quiescent current in standby, and programmable switching frequency from 220kHz to 2.2MHz. It enables rapid validation of power delivery in industrial point-of-load and wall transformer regulation applications.

For engineers reviewing the MAX17242EVKIT# datasheet, MAX17242EVKIT# pinout, MAX17242EVKIT# application, or MAX17242EVKIT# equivalent, this kit provides preconfigured hardware to evaluate MAX17242 performance under real-world load transients, PFM/PWM mode switching, spread-spectrum EMI reduction, and thermal shutdown recovery - all without custom PCB design or component sourcing.

Technical Context

The MAX17242EVKIT# implements the MAX17242 IC in a fully assembled 20-pin TQFN layout with integrated 2.2µH inductor, 4.7µF/22µF input/output ceramic capacitors, 12kΩ FOSC resistor (2.2MHz), and 20kΩ feedback divider for 3.3V output. It supports both forced-PWM and PFM operation via FSYNC pin control and includes active PGOOD monitoring and EN-driven soft-start.

Key validated behaviors include 8ms internal soft-start limiting inrush, ±3% spread-spectrum modulation at 2.2MHz, cycle-by-cycle current limit up to 4.16A (MAX17242), and thermal shutdown recovery at 175°C with 15°C hysteresis - all measured per JEDEC JESD51-7 on a four-layer board with exposed pad thermal connection.

Key Specifications

Availability

MAX17242EVKIT# is available at Aetrix Electronics and suitable for industrial point-of-load regulation, wall adapter replacement designs, and distributed supply validation requiring stable component supply, fast evaluation turnaround, and production-ready reference schematics.

Supply support for MAX17242EVKIT# 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 systems.

The MAX17242EVKIT# belongs to Maxim's high-efficiency synchronous buck converter evaluation platform family, designed specifically to accelerate development of ultra-low-quiescent-current DC-DC supplies for battery-powered and energy-sensitive applications.

FAQ

What is the primary function of the MAX17242EVKIT#?

The MAX17242EVKIT# is a fully assembled evaluation platform for the MAX17242 2A synchronous step-down DC-DC converter. It allows engineers to validate key performance metrics-including efficiency across load range, PFM/PWM mode behavior, PGOOD timing, soft-start response, and thermal shutdown recovery-without designing custom hardware. The kit ships with preconfigured 3.3V output, 2.2MHz switching, and all necessary passive components mounted.

Does the MAX17242EVKIT# support adjustable output voltage?

Yes, the MAX17242EVKIT# supports both fixed and adjustable outputs. By default, it configures the MAX17242 for 3.3V using FB-to-BIAS connection. To evaluate adjustable operation (1V–10V), users can replace the onboard 20kΩ feedback resistor with a custom divider per the formula RFB1 = RFB2 × (VOUT/VFB − 1), where VFB = 1.0V. The kit's layout includes test points and solder pads for easy reconfiguration.

Can the MAX17242EVKIT# be used to evaluate EMI performance?

Yes, the MAX17242EVKIT# includes hardware-level EMI mitigation features: spread-spectrum clocking (enabled via SPS pin high) and optimized PCB layout with ground plane stitching, minimized loop areas, and integrated ceramic capacitors. Measured data shows >10dB peak EMI reduction at 2.2MHz fundamental when spread spectrum is active - verified using standard CISPR-22 near-field probes and spectrum analyzers.

What protection features are validated on the MAX17242EVKIT#?

The MAX17242EVKIT# validates four critical protections: (1) 42V input transient tolerance (per absolute max ratings), (2) cycle-by-cycle current limiting (trip point confirmed at 4.16A for MAX17242), (3) thermal shutdown at 175°C with automatic recovery after 15°C cooldown, and (4) PGOOD assertion/deassertion windows (95%/92.5% of VFB). All are observable via oscilloscope on designated test points.

Is the MAX17242EVKIT# compatible with the MAX17243?

No - the MAX17242EVKIT# is specifically configured for the MAX17242 (2A version) and is not directly compatible with the MAX17243 (3A version). While both share identical pinout and package, the EVKIT# uses current-sense components and thermal layout optimized for 2A operation. Using it with MAX17243 risks inaccurate current limiting, thermal derating, and potential instability under full 3A load.