Analog Devices Inc./Maxim Integrated MAX20472EVKIT#

Overview

MAX20472EVKIT# from Maxim Integrated is an evaluation kit designed to demonstrate the performance of the MAX20472 high-efficiency, fixed-output boost converter IC-specifically configured for 3.8V to 5.25V output at up to 500mA from a 3.0V–4.0V input, operating at 2.2MHz FPWM mode with ±1.5% output regulation accuracy across load, line, and temperature.

For engineers reviewing the MAX20472EVKIT# datasheet, MAX20472EVKIT# pinout (including feedback injection test point), MAX20472EVKIT# application in automotive point-of-load or CAN transceiver power rails, or MAX20472EVKIT# equivalent evaluation platforms, this fully assembled and tested board provides validated layout, thermal performance, and stability verification under -40°C to +125°C conditions.

Technical Context

The MAX20472EVKIT# implements the MAX20472 DC-DC boost converter in forced-PWM and skip-mode operation, supporting seamless transition between 2.2MHz constant-frequency switching and pulse-frequency modulation for light-load efficiency optimization. It incorporates integrated low-R_DS(ON) MOSFETs, True Shutdown™, soft-start, overcurrent, and overtemperature protection circuits.

This kit enables stability analysis via a dedicated feedback injection point and supports spread-spectrum frequency modulation to reduce radiated EMI-critical for automotive CAN transceiver power supplies where noise immunity and EMC compliance are mandatory per ISO 11898-2.

Key Specifications

Availability

MAX20472EVKIT# is available at Aetrix Electronics and suitable for automotive CAN transceiver power supplies, automotive point-of-load (PoL) conversion, and industrial sensor node biasing requiring stable component supply, full assembly validation, and production-ready layout reference.

Supply support for MAX20472EVKIT# 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 precision analog, mixed-signal, and power management ICs for automotive, industrial, and communications applications-with emphasis on high-reliability, low-noise, and AEC-Q100-qualified solutions.

The MAX20471–MAX20473 product line delivers high-efficiency, fixed-output boost converters optimized for automotive subsystems-including CAN, LIN, and sensor interface rails-where small footprint, EMI robustness, and extended temperature operation are mandatory.

FAQ

What is the primary function of the MAX20472EVKIT#?

The MAX20472EVKIT# is a fully assembled evaluation platform that demonstrates the electrical performance, thermal behavior, and stability of the MAX20472 boost converter IC. It allows engineers to validate 3.8V–5.25V output generation from a 3.0V–4.0V input at up to 500mA in automotive-grade conditions, including -40°C to +125°C operation and EMI-sensitive environments like CAN transceiver power domains.

Does the MAX20472EVKIT# support different output current versions of the MAX20472 IC?

Yes-the MAX20472EVKIT# is compatible with the full MAX20471–MAX20473 family, including 1A and 2A output variants. While the board ships populated with the 500mA MAX20472, its PCB layout, compensation network, and thermal design accommodate higher-current versions without modification, enabling rapid prototyping across output current grades.

How does the feedback injection point on the MAX20472EVKIT# aid design validation?

The feedback injection point on the MAX20472EVKIT# allows direct Bode plot measurement using a network analyzer to quantify loop gain and phase margin-confirming stability under real-world load transients and temperature extremes. This feature eliminates guesswork when adapting the MAX20472 design to custom PCBs or varying output capacitor ESR profiles.

Is the MAX20472EVKIT# qualified for automotive applications?

Yes-the MAX20472EVKIT# implements the AEC-Q100-qualified MAX20472 IC and operates across -40°C to +125°C. Its layout follows automotive EMI best practices, includes spread-spectrum modulation, and supports forced-PWM mode for deterministic timing-making it suitable for validating power rails in CAN transceivers, body control modules, and ADAS sensor interfaces.

What protections are implemented on the MAX20472EVKIT#?

The MAX20472EVKIT# inherits all protections of the MAX20472 IC: overcurrent protection (OCP) with hiccup-mode recovery, overtemperature shutdown with automatic restart, True Shutdown™ for zero quiescent current, and soft-start to limit inrush current. These features ensure safe operation during hot-plug events, short-circuit faults, and thermal overload scenarios encountered in automotive systems.