Analog Devices Inc./Maxim Integrated MAX25206EVKIT#

Overview

MAX25206EVKIT# from Maxim Integrated is a fully assembled and tested evaluation kit designed to validate the MAX25206 automotive synchronous step-down controller in real-world 12V/24V/48V vehicle systems. It delivers up to 7A at a fixed 5V output with 2.2MHz switching, supports input voltages from +3.5V to +60V, features PGOOD monitoring, spread-spectrum control, and SYNC I/O for multi-rail synchronization.

For engineers reviewing the MAX25206EVKIT# datasheet, MAX25206EVKIT# pinout, MAX25206EVKIT# application, or MAX25206EVKIT# equivalent, this kit enables rapid validation of buck converter performance, light-load efficiency (7µA IQ), thermal behavior under 7A load, and timing alignment across distributed power domains in ADAS, infotainment, and body electronics.

Technical Context

The MAX25206EVKIT# implements the MAX25206 controller in forced-PWM mode by default (SYNC jumper J3 set to pins 1–2), supporting 2.2MHz operation with external compensation via COMP pin and feedback regulation via FB pin. It uses a single 1.2µH inductor (XAL1060-122ME) and dual N-channel MOSFETs (SQJA84EP-T1 GE3) in a synchronous buck topology.

Power sequencing is managed through ENABLE and ENBK jumpers; output quality is verified via PGOOD test point and VOUT test pads. The board includes configurable resistors (R17/R19) to reprogram output voltage from 5V to 3.3V or adjustable 0.7V–20V range, and supports optional 440kHz operation for higher-current configurations (up to 20A).

Key Specifications

Availability

MAX25206EVKIT# is available at Aetrix Electronics and suitable for automotive ADAS camera modules, infotainment head units, and body control modules requiring stable component supply, pre-validated reference designs, and fast-turn prototyping support.

Supply support for MAX25206EVKIT# 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 and mixed-signal ICs for automotive, industrial, and communications applications with emphasis on reliability and AEC-Q100 compliance.

The MAX25206EVKIT# belongs to Maxim's automotive power management evaluation platform family, engineered specifically to accelerate qualification of 60V-input buck controllers in harsh-temperature, high-EMI vehicle environments.

FAQ

What is the default output configuration of the MAX25206EVKIT#?

The MAX25206EVKIT# ships with the MAX25206 IC installed and configured for fixed 5V output delivering up to 7A. Default jumper settings (ENABLE=1&2, SPS=2&3, SYNC=1&2, ENBK=2&3) establish forced-PWM operation, no spread spectrum, and enabled buck stage. Output voltage is confirmed as 5V ±1% under 7A load per Quick Start procedure.

Can the MAX25206EVKIT# evaluate both MAX25206 and MAX25208 ICs?

The MAX25206EVKIT# is designed and validated for the MAX25206 controller only. While documentation states it "evaluates MAX25206/8", the bill of materials, schematic, and default configuration (e.g., input cap C4 rated 100V, L1 = 1.2µH) match MAX25206 specs. MAX25208 requires +70V input support and different layout considerations not implemented on this board.

How do I change the output voltage on the MAX25206EVKIT#?

To change output voltage on the MAX25206EVKIT#, remove R1 and install resistor dividers at R17 and R19 per the MAX25206 datasheet feedback equation: VOUT = 0.7V × (1 + R17/R19). The board supports fixed 3.3V or adjustable 0.7V–20V outputs. Default 5V uses R17 = 10kΩ and R19 = 191kΩ (verified in BOM revision 2).

Does the MAX25206EVKIT# support spread-spectrum operation?

Yes - the MAX25206EVKIT# supports spread-spectrum modulation via the SPS jumper (J2). With default shunt at pins 2&3, spread spectrum is disabled. Moving the shunt to pins 1&2 enables spread-spectrum control, reducing EMI peak emissions while maintaining 2.2MHz center frequency - a feature directly implemented in the MAX25206 silicon and validated on this board.

What test equipment is required to operate the MAX25206EVKIT#?

Per the official Quick Start guide, operating the MAX25206EVKIT# requires a 3.5V–60V/7A DC power supply, digital multimeter (for VOUT verification), oscilloscope (to measure 2.2MHz switching at LX), and electronic load (capable of sinking ≥7A). All jumpers must be set per Table 1 before initial power-up to ensure safe 5V operation of the MAX25206EVKIT#.