Analog Devices Inc./Maxim Integrated MAX17633CEVKIT#

Overview

MAX17633CEVKIT# from Maxim Integrated is an evaluation kit designed to validate the MAX17633C - a 4.5V–36V input, adjustable-output (0.9V to 90% VIN), 3.5A synchronous step-down DC-DC converter in a 20-pin TQFN package. It supports PWM/DCM/PFM operation modes, features internal compensation, and delivers peak efficiency >93% with CISPR-22 Class B compliance measured directly on this board.

For engineers reviewing the MAX17633CEVKIT# datasheet, MAX17633CEVKIT# pinout, MAX17633CEVKIT# application, or MAX17633CEVKIT# equivalent, this kit enables rapid characterization of MAX17633C's adjustable output regulation, soft-start behavior, external clock synchronization, hiccup-mode overload protection, and thermal performance under real-world load and EMI conditions.

Technical Context

The MAX17633CEVKIT# implements the MAX17633C IC in a fully assembled, tested, and optimized layout per Maxim's reference design (land pattern 90-0409). It includes all critical passive components: 6.8µH power inductor, 0.1µF BST capacitor, 5600pF SS capacitor, dual 22µF output ceramic capacitors, and dual 2.2µF input ceramics - enabling immediate evaluation without component selection or layout risk.

This kit supports full functional validation across operating conditions: -40°C to +125°C ambient, 4.5V–36V input, up to 3.5A load, and switching frequencies from 400kHz to 2.2MHz (via RT resistor or external SYNC signal). Radiated EMI testing per CISPR-22 Class B was performed directly on the MAX17633CEVKIT#, confirming compliance at 5V output.

Key Specifications

Availability

MAX17633CEVKIT# 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 and fast prototyping validation.

Supply support for MAX17633CEVKIT# 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 demanding industrial, automotive, and communications applications.

The MAX17633 product line belongs to the Himalaya series - engineered for cooler, smaller, and simpler power supply solutions with integrated MOSFETs, internal compensation, and robust protection in compact TQFN packages.

FAQ

What is the primary function of the MAX17633CEVKIT#?

The MAX17633CEVKIT# is an evaluation kit for the MAX17633C synchronous step-down DC-DC converter. It provides a fully assembled, tested platform to validate electrical performance-including adjustable output regulation, efficiency across load and input voltage, EMI behavior, and protection features-without requiring custom PCB development. The MAX17633CEVKIT# enables immediate bench testing and design-in confidence for the MAX17633C IC.

Does the MAX17633CEVKIT# support external clock synchronization?

Yes, the MAX17633CEVKIT# supports external clock synchronization via the MODE/SYNC pin. When an external clock signal within 1.1×–1.4× the RT-set frequency is applied, the MAX17633C enters synchronized PWM mode. This capability is validated on the MAX17633CEVKIT# and documented in its associated evaluation kit user guide and oscilloscope waveforms (e.g., toc37–toc39).

Can the MAX17633CEVKIT# be used to evaluate CISPR-22 Class B compliance?

Yes - the radiated EMI measurement shown in Figure toc46 of the MAX17633 datasheet was explicitly "MEASURED ON THE MAX17633CEVKIT#" and confirms CISPR-22 Class B compliance at 5V output. This makes the MAX17633CEVKIT# a validated reference for EMI-sensitive applications requiring certified emissions performance.

What output voltage range can be evaluated using the MAX17633CEVKIT#?

The MAX17633CEVKIT# evaluates the MAX17633C variant, which supports an adjustable output from 0.9V up to 90% of the input voltage (VIN). The kit includes provisions for configuring the FB resistor divider, allowing users to set any target VOUT within that range - unlike fixed-output variants (MAX17633A/B) - making it ideal for custom point-of-load designs.

Does the MAX17633CEVKIT# include thermal management features for high-current operation?

Yes - the MAX17633CEVKIT# implements Maxim's recommended thermal layout: the exposed pad (EP) of the MAX17633C is soldered to a large SGND copper plane with multiple thermal vias, matching the thermal resistance data (θJA = 26°C/W, θJC = 2°C/W) measured on the evaluation kit. This ensures reliable 3.5A continuous operation and accurate junction temperature assessment.