Analog Devices Inc./Maxim Integrated MAX20008EVKIT#

Overview

MAX20008EVKIT# from Maxim Integrated is an evaluation kit for the MAX20008 8A automotive synchronous buck converter, supporting input voltages from 3.5V to 36V and programmable output from 1V to 10V (or fixed 3.3V/5.0V). It implements current-mode control with 220kHz–2.2MHz adjustable switching frequency, 98% max duty cycle, ±2% output voltage accuracy, and AEC-Q100 qualification - designed for point-of-load regulation in navigation head units and distributed DC power systems.

For engineers reviewing the MAX20008EVKIT# datasheet, MAX20008EVKIT# pinout, MAX20008EVKIT# application, or MAX20008EVKIT# equivalent, this kit enables rapid validation of MAX20008 performance under automotive load-dump (40V), thermal stress (−40°C to +125°C), and EMI-sensitive conditions using spread-spectrum or forced-PWM operation.

Technical Context

The MAX20008EVKIT# implements the full reference design for the MAX20008 IC, including 1.0µH power inductor, 94µF output capacitance, 4.7µF/0.1µF SUPSW bypassing, and 20kΩ/12kΩ/22kΩ resistor network for FB, FOSC, and BIAS monitoring. It supports all operating modes: skip mode (25µA IQ), forced-PWM, and external SYNC synchronization up to ±20% frequency deviation.

Thermal management leverages the MAX20008's 2.6°C/W θJC and 27°C/W θJA on a four-layer board, with layout-optimized PGND copper pour and thermal vias beneath the 3.5mm × 3.75mm 17-pin FC2QFN package. Protection features - overtemperature shutdown (175°C), hiccup-mode short-circuit recovery, and 40V load-dump tolerance - are fully exercised and testable on the board.

Key Specifications

Availability

MAX20008EVKIT# is available at Aetrix Electronics and suitable for automotive navigation systems, radio head units, and distributed DC power architectures requiring stable component supply, production-grade validation, and AEC-Q100-compliant design verification.

Supply support for MAX20008EVKIT# 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-reliability analog and mixed-signal ICs for automotive, industrial, and communications applications, with emphasis on power management, interface, and sensor signal conditioning.

The MAX20008EVKIT# belongs to Maxim's automotive power management evaluation platform family, engineered specifically to accelerate qualification of AEC-Q100-compliant buck converters in harsh-temperature, high-transient automotive environments.

FAQ

What is the primary function of the MAX20008EVKIT#?

The MAX20008EVKIT# is a fully assembled evaluation kit for the MAX20008 8A automotive synchronous buck converter. It provides a production-ready reference design - including optimized layout, thermal management, and protection circuitry - to validate electrical performance, efficiency, transient response, and robustness under real-world automotive conditions before system integration.

Does the MAX20008EVKIT# support both fixed and adjustable output voltages?

Yes. The MAX20008EVKIT# supports fixed 3.3V and 5.0V outputs via FB-to-BIAS connection, and programmable 1V–10V outputs using an external resistive divider from OUT to FB. The onboard resistor network allows quick reconfiguration, and the MAX20008EVKIT# schematic documents exact component values for each configuration.

Can the MAX20008EVKIT# be used to evaluate spread-spectrum operation?

Yes - but only if the installed MAX20008 IC is factory-ordered with spread-spectrum enabled (e.g., MAX20008ATC+). The MAX20008EVKIT# hardware supports it: when enabled, the device modulates switching frequency ±3% at 4.5kHz (scaled for other fSW), reducing peak EMI by up to 10dB without requiring layout changes or external components.

How does the MAX20008EVKIT# handle automotive load-dump transients?

The MAX20008EVKIT# validates the MAX20008's 40V load-dump tolerance per ISO 7637-2 Pulse 5a. Input protection is implemented via TVS diode placement and capacitor staging (0.1µF ceramic + 4.7µF ceramic + bulk electrolytic), ensuring the SUP/SUPSW pins remain within absolute maximum ratings during 40V/100ms transients without latch-up or parameter shift.

Is thermal performance data available for the MAX20008EVKIT# under full 8A load?

Yes. The MAX20008EVKIT# datasheet includes junction temperature rise vs. load curves (e.g., +85°C rise at 8A, 2.2MHz, VIN=14V, TA=25°C on four-layer board). These measurements use the actual EVKIT PCB layout and confirm the MAX20008's 2.6°C/W θJC and thermal shutdown activation at 175°C junction temperature.