Analog Devices Inc./Maxim Integrated MAX17632AEVKIT#

Overview

MAX17632AEVKIT# from Maxim Integrated is an evaluation kit for the MAX17632A high-efficiency, 4.5V–36V input, 3.3V fixed-output synchronous step-down DC-DC converter delivering up to 2A. It features peak-current-mode control, 400kHz–2.2MHz adjustable switching frequency, internal compensation, and operates across –40°C to +125°C ambient. The kit enables rapid validation of power delivery in industrial point-of-load and base station applications.

For engineers reviewing the MAX17632AEVKIT# datasheet, MAX17632AEVKIT# setup guide, MAX17632AEVKIT# test configuration, or MAX17632AEVKIT# alternative evaluation platforms, this kit provides full access to the MAX17632A's PWM/DCM/PFM modes, soft-start, RESET monitoring, EN/UVLO threshold programming, and external clock synchronization - all with pre-layout optimized 16-pin TQFN (3mm × 3mm) reference design.

Technical Context

The MAX17632AEVKIT# implements the MAX17632A IC in a fully assembled, tested PCB layout featuring a 10µH power inductor, 22µF output ceramic capacitor (GRM32ER71A226K), 2.2µF input capacitor, 5600pF soft-start capacitor, and precision feedback network calibrated for 3.3V ±1.2% regulation. It supports all operating modes - forced PWM, DCM, and PFM - via MODE/SYNC pin configuration and includes test points for VIN, VOUT, LX, EN/UVLO, SS, RESET, and MODE/SYNC.

Designed per Maxim's land pattern 90-0032 and outline 21-0136, the kit uses four-layer board construction with θJA = 38°C/W thermal performance. It enables direct measurement of efficiency (up to 94% at 2A), load/line regulation, startup behavior with pre-biased outputs, hiccup-mode overload protection, and Bode plot stability analysis using the onboard RT and FB nodes.

Key Specifications

Availability

MAX17632AEVKIT# is available at Aetrix Electronics and suitable for industrial control power supplies, distributed supply regulation, and high-voltage single-board systems requiring stable component supply, fast prototyping turnaround, and production-ready reference design validation.

Supply support for MAX17632AEVKIT# 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management solutions for industrial, automotive, and communications markets.

The MAX17632 product line delivers high-efficiency, wide-input synchronous buck converters targeting space-constrained, thermally demanding industrial and telecom power applications where reliability across –40°C to +125°C is mandatory.

FAQ

What is the primary function of the MAX17632AEVKIT#?

The MAX17632AEVKIT# is an evaluation kit designed to accelerate development and validation of the MAX17632A 3.3V fixed-output synchronous step-down DC-DC converter. It provides a fully assembled, tested PCB with optimized layout, all necessary passive components, and test points for key signals - enabling immediate characterization of efficiency, transient response, startup behavior, and protection features without custom design effort.

Does the MAX17632AEVKIT# support adjustable output voltage configurations?

No - the MAX17632AEVKIT# is specifically configured for the MAX17632A variant, which delivers a fixed 3.3V output. To evaluate adjustable output operation, users must select the MAX17632CEVKIT# (for MAX17632C) or MAX17632BEVKIT# (for MAX17632B). The MAX17632AEVKIT# feedback network is hardwired for 3.3V and not reconfigurable for other voltages.

Can the MAX17632AEVKIT# be synchronized to an external clock source?

Yes - the MAX17632AEVKIT# exposes the MODE/SYNC pin with full AC-coupled access, supporting external clock synchronization within 1.1× to 1.4× the programmed switching frequency. The kit's layout preserves signal integrity for sync pulses as narrow as 50ns, and the onboard test points allow direct probing of sync timing margins and jitter performance during system-level integration.

What thermal performance can be expected from the MAX17632AEVKIT# under full load?

When operated at 2A output current with VIN = 24V and ambient temperature of +70°C, the MAX17632AEVKIT# maintains junction temperature below 125°C due to its four-layer board construction (θJA = 38°C/W) and optimized copper pour. Thermal shutdown activates only above +165°C junction, providing robust margin for sustained industrial operation.

How does the MAX17632AEVKIT# implement soft-start and pre-bias startup?

The MAX17632AEVKIT# includes a 5600pF capacitor on the SS pin, yielding a controlled 1.2ms soft-start time. It also supports monotonic startup into pre-biased outputs - verified with 1.65V pre-bias on VOUT - by leveraging the MAX17632A's valley-current-limit circuitry and programmable EN/UVLO thresholds, ensuring no reverse current or output overshoot during hot-insertion scenarios.