Analog Devices Inc./Maxim Integrated MAX20029BEVKIT#

Overview

MAX20029BEVKIT# from Maxim Integrated is a fully assembled and tested evaluation kit for the MAX20029B quad-output, low-voltage step-down PMIC. It supports 3V–5.5V input, delivers up to 3A on OUT1 and 1.5A on OUT3/OUT4, operates at 2.2MHz switching frequency, and enables independent enable, power-good monitoring, and loop measurement per channel - used for rapid validation of automotive and industrial power-rail sequencing.

For engineers reviewing the MAX20029BEVKIT# datasheet, MAX20029BEVKIT# pinout, MAX20029BEVKIT# application, or MAX20029BEVKIT# equivalent, key selection considerations include supported input/output voltage ranges, per-channel current limits (3A/1.5A), 2.2MHz fixed-frequency operation with optional SYNC input (1.7–2.5MHz), integrated fault protection, and preconfigured resistor-divider output settings (1.2V/1.8V/3.3V).

Technical Context

The MAX20029BEVKIT# implements the MAX20029B PMIC in a production-ready PCB layout with four synchronous buck regulators. Each channel features independent EN control, PG flag, overtemperature/short-circuit protection, and input/output UV/OV comparators.

It supports external synchronization via J3 (SYNC pin), enabling frequency adjustment from 1.7MHz to 2.5MHz with 50% duty cycle square wave. Output voltages are set by precision resistor dividers (e.g., VOUT1 = 1.2V via R11/R12), and loop measurement points (J10/J30/J40) allow stability analysis without soldering.

Key Specifications

Availability

MAX20029BEVKIT# is available at Aetrix Electronics and suitable for automotive infotainment power validation, industrial PLC I/O module supply design, and embedded system multi-rail sequencing requiring stable component supply and immediate bench evaluation.

Supply support for MAX20029BEVKIT# 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, mixed-signal, and power-management ICs for automotive, industrial, communications, and computing applications.

The MAX20029B product line targets compact, high-efficiency multi-rail power solutions for space-constrained automotive and industrial systems requiring precise voltage sequencing and robust fault handling.

FAQ

What is the primary function of the MAX20029BEVKIT#?

The MAX20029BEVKIT# is a fully assembled evaluation platform for the MAX20029B quad-output buck PMIC. It enables engineers to validate power-rail generation, sequencing, fault response, and loop stability without board design effort. The MAX20029BEVKIT# includes preconfigured outputs (1.2V/1.8V/3.3V), test points for all critical signals, and SYNC input for frequency tuning - accelerating development of automotive and industrial power subsystems.

Does the MAX20029BEVKIT# support adjustable output voltages?

Yes, the MAX20029BEVKIT# supports adjustable output voltages via onboard resistor dividers. For example, VOUT1 is set to 1.2V using R11 (14.3kΩ) and R12 (71.5kΩ). To change output voltage, users can replace these resistors with values matching their target regulation point. Internally fixed-output variants can be evaluated by removing feedback resistors and installing 0Ω jumpers - a procedure documented in the MAX20029BEVKIT# quick-start guide.

What power supply requirements does the MAX20029BEVKIT# have?

The MAX20029BEVKIT# requires a 5V, 3A DC power supply connected across VSUP (J1) and PGND (J2). This matches the MAX20029B's 3V–5.5V input range and ensures sufficient headroom for all four channels operating simultaneously at full rated current. Load testing must use appropriate resistive or electronic loads sized for each output's voltage and current rating (e.g., 1.2V @ 3A for OUT1).

How is synchronization implemented on the MAX20029BEVKIT#?

Synchronization on the MAX20029BEVKIT# is implemented via the SYNC pin (J3), which accepts an external 50% duty-cycle square wave. This allows the MAX20029B's switching frequency to be adjusted from 1.7MHz to 2.5MHz - useful for EMI reduction or clock domain alignment. The default operation remains at 2.2MHz when SYNC is left unconnected or pulled low, as specified in the MAX20029BEVKIT# hardware description.

Are loop measurement capabilities included on the MAX20029BEVKIT#?

Yes, the MAX20029BEVKIT# provides dedicated loop measurement points for three of the four regulators: J10 for OUT1, J30 for OUT3, and J40 for OUT4. These three-pin headers allow direct injection and measurement of control-loop AC response without modifying the PCB. Loop analysis supports stability verification under varying load and line conditions - a critical step before integrating the MAX20029B into production designs.