Analog Devices Inc./Maxim Integrated MAX20029EVKIT#

Overview

MAX20029EVKIT# from Maxim Integrated is a fully assembled and tested evaluation kit for the MAX20029/MAX20029C quad-output, low-voltage step-down PMIC. It supports 3V–5.5V input, delivers up to 1.5A per channel at 1V–4V output, operates at 2.2MHz switching frequency with 180° phase shift between two channels, and includes independent enable, power-good, overtemperature, and short-circuit protection - enabling rapid validation of multi-rail power architectures in automotive infotainment and ADAS domain controllers.

For engineers reviewing the MAX20029EVKIT# datasheet, MAX20029EVKIT# pinout, MAX20029EVKIT# application, or MAX20029EVKIT# equivalent, this kit provides immediate access to loop measurement points (J10/J20/J30/J40), configurable output voltage dividers, SYNC input for external frequency control (1.7–2.5MHz), and proven PCB layout for high-frequency buck regulator stability and EMI performance.

Technical Context

The MAX20029EVKIT# implements the MAX20029ATIA/V+ IC - a quad synchronous buck converter PMIC with integrated MOSFETs, fixed 2.2MHz operation (adjustable via SYNC), and independent per-channel enable, power-good, and fault-flag outputs. Each channel features internal current limiting, input/output UV/OV comparators, and thermal shutdown.

Hardware design supports flexible configuration: output voltages (1.2V/1.5V/1.8V/3.3V by default) are set via resistor dividers (R11/R12, R21/R22, etc.), and can be reconfigured for fixed-output variants (e.g., MAX20029C) by shorting feedback nodes. The board includes dedicated Bode plot test points and large-pitch connectors (J1/J2 for VSUP/PGND; J14/J24/J34/J44 for PG signals) for production-grade validation.

Key Specifications

Availability

MAX20029EVKIT# is available at Aetrix Electronics and suitable for automotive infotainment system development, ADAS domain controller prototyping, and industrial multi-rail power architecture validation requiring stable component supply, pre-validated layout, and fast time-to-test.

Supply support for MAX20029EVKIT# 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 - emphasizing high reliability, small form factor, and robust EMC performance.

The MAX20029 product line targets automotive power systems requiring multiple tightly regulated rails with high efficiency, low noise, and functional safety support - specifically designed for infotainment head units, telematics control units, and camera ECU power domains.

FAQ

What IC does the MAX20029EVKIT# evaluate?

The MAX20029EVKIT# evaluates the MAX20029ATIA/V+, a quad-output synchronous buck PMIC with 1.5A per channel, 2.2MHz switching, and integrated protection. It also supports evaluation of the pin-compatible MAX20029C variant when configured for fixed outputs via feedback node shorting. The board ships with the MAX20029ATIA/V+ installed and pre-configured for 1.2V/1.5V/1.8V/3.3V outputs.

Can the MAX20029EVKIT# be used to evaluate the MAX20029C variant?

Yes - the MAX20029EVKIT# supports MAX20029C evaluation by modifying the feedback network: remove R12/R22/R32/R42 and replace R11/R21/R31/R41 with 0Ω resistors to connect VOUTx directly to OUTSx pins. This configures the IC for internally fixed outputs. For out-of-box MAX20029C evaluation, Maxim offers the dedicated MAX20029CEVKIT#.

How is switching frequency adjusted on the MAX20029EVKIT#?

Switching frequency on the MAX20029EVKIT# is adjusted using the SYNC pin (J3), which accepts an external 50% duty-cycle square wave. The supported range is 1.7MHz to 2.5MHz - allowing optimization for EMI reduction or efficiency trade-offs. Default operation is 2.2MHz without external sync, matching the MAX20029ATIA/V+ specification.

What power supply is required to operate the MAX20029EVKIT#?

A 5V, 3A DC power supply is required, connected across VSUP (J1) and PGND (J2). This matches the MAX20029's 3V–5.5V input range and ensures sufficient headroom for all four 1.5A channels under load. The board includes bulk capacitance (C50: 220µF tantalum) and ceramic input filters (C1–C4) to maintain stability during transient loading.

Does the MAX20029EVKIT# support loop stability analysis?

Yes - the MAX20029EVKIT# provides dedicated Bode plot test points for all four channels: J10 (CH1), J20 (CH2), J30 (CH3), and J40 (CH4). Each is a three-pin header supporting injection and measurement for gain/phase margin assessment. These points are routed with controlled impedance and minimal parasitics to ensure accurate AC analysis of the buck regulator control loop.