Analog Devices Inc./Maxim Integrated MAXM17503EVKIT#

Overview

MAXM17503EVKIT# from Maxim Integrated is an evaluation kit designed to validate and accelerate development of the MAXM17503 Himalaya step-down power module-a fully integrated 4.5V–60V input, 2.5A output DC-DC converter with integrated inductor, controller, dual MOSFETs, and compensation. It supports adjustable output voltages from 0.9V to 12V and enables rapid prototyping for industrial point-of-load applications including FPGA, DSP, and base station power rails.

For engineers reviewing the MAXM17503EVKIT# datasheet, MAXM17503EVKIT# pinout, MAXM17503EVKIT# application, or MAXM17503EVKIT# equivalent, this kit provides a pre-layout, tested reference design with full thermal and EMI characterization (CISPR22 Class B compliant), enabling immediate validation of efficiency, transient response, soft-start behavior, and mode-switching (PWM/PFM/DCM) under real load conditions.

Technical Context

The MAXM17503EVKIT# implements the MAXM17503 SiP in a 9mm × 15mm × 2.8mm thermally enhanced package with 29-pin land pattern L32915+1. It includes all required external components-input/output capacitors, feedback resistors, soft-start capacitor, and frequency-setting resistor-to achieve full functionality across the device's operating range (−40°C to +125°C ambient).

It supports configurable switching frequencies from 100kHz to 1.8MHz via RT pin, external SYNC input (1.1×–1.4× f_SW), programmable EN/UVLO, and RESET monitoring with 92–95% FB threshold hysteresis. The board delivers measured efficiency up to 95% at 5V/2.5A (VIN = 24V, PWM mode) and meets conducted/radiated emissions limits per CISPR22 Class B.

Key Specifications

Availability

MAXM17503EVKIT# is available at Aetrix Electronics and suitable for industrial power supply validation, FPGA/DSP point-of-load design verification, and base station power architecture testing requiring stable component supply and repeatable lab-grade measurement data.

Supply support for MAXM17503EVKIT# 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 power, sensing, and communication applications in industrial, automotive, and computing markets.

The MAXM17503EVKIT# belongs to the Himalaya power module evaluation platform family, engineered to reduce design risk and time-to-market for engineers implementing compact, high-efficiency DC-DC conversion in space- and thermally constrained systems.

FAQ

What is the primary purpose of the MAXM17503EVKIT#?

The MAXM17503EVKIT# is a fully assembled and tested evaluation kit for the MAXM17503 step-down power module. It enables engineers to verify electrical performance-including efficiency, transient response, thermal behavior, and EMI compliance-without designing a custom PCB. The kit ships with pre-populated components matching the typical application circuit from the MAXM17503 datasheet, supporting immediate bench testing and design validation.

Does the MAXM17503EVKIT# support adjustable output voltage?

Yes, the MAXM17503EVKIT# supports output voltages from 0.9V to 12V via external resistor dividers on the FB pin. It includes jumpers and test points for quick reconfiguration, and the board is shipped with default 3.3V and 5V configurations verified per datasheet conditions. Users can modify RU/RB values per Table 1 in the MAXM17503 datasheet to target other output voltages.

Can the MAXM17503EVKIT# be used to evaluate light-load efficiency modes?

Yes, the MAXM17503EVKIT# fully supports PWM, PFM, and DCM operation via the MODE pin. By configuring MODE to SGND (PWM), open (PFM), or VCC (DCM), users can directly measure light-load efficiency curves, startup/shutdown waveforms, and mode-transition behavior-validated in the datasheet's typical operating characteristics (e.g., toc01–toc08 efficiency plots).

Is EMI performance characterized on the MAXM17503EVKIT#?

Yes, the MAXM17503EVKIT# includes a documented CISPR22 Class B-compliant filter network (C4=2.2µF, L1=10µH, C14=2.2µF) and provides conducted/radiated emission plots (toc44–toc45). Test data confirms compliance at VIN = 24V, VOUT = 5V, IOUT = 2.5A, making it a reliable reference for system-level EMI validation before final layout.

What thermal management features are implemented on the MAXM17503EVKIT#?

The MAXM17503EVKIT# implements the MAXM17503's thermal design guidelines: EP1 (SGND), EP2 (LX), and EP3 (OUT) exposed pads are connected to dedicated 1in × 1in copper islands with multiple thermal vias. This achieves θ_JA = 30.8°C/W and enables continuous 2.5A operation at +85°C ambient with no forced airflow-matching the datasheet's thermal derating curve (toc43).