Analog Devices Inc./Maxim Integrated MAX15118EVKIT#

Overview

MAX15118EVKIT# from Maxim Integrated is an evaluation kit for the MAX15118 18A synchronous step-down regulator, supporting input voltages from 2.7V to 5.5V and delivering up to 18A output current with ±1% feedback accuracy, 1MHz fixed switching frequency, and selectable skip/PWM mode operation. It enables rapid validation of high-current point-of-load designs in notebooks, servers, and DDR memory power rails.

For engineers reviewing the MAX15118EVKIT# datasheet, MAX15118EVKIT# pinout, MAX15118EVKIT# application, or MAX15118EVKIT# equivalent, this kit provides full hardware reference for evaluating thermal performance, load-transient response, soft-start behavior, prebias startup, and PGOOD sequencing - all critical for industrial and compute power system integration.

Technical Context

The MAX15118EVKIT# implements the MAX15118 IC in a fully assembled, tested 28-bump WLP (2.10mm × 3.56mm) layout with optimized PCB copper planes, ceramic input/output capacitors, and a selected 0.33µH shielded inductor. It supports both PWM and skip-mode operation via jumper configuration and includes remote ground-sense routing for accurate load regulation.

It validates the MAX15118's current-mode control architecture with transconductance error amplifier (1.2mS), cycle-by-cycle current limiting (24A high/low-side threshold), and fast transient response (<100µs recovery under 0.1A→9A step load), while enabling measurement of efficiency curves across VIN (2.7V–5.5V), VOUT (0.6V–3.3V), and IOUT (up to 18A).

Key Specifications

Availability

MAX15118EVKIT# is available at Aetrix Electronics and suitable for notebook power delivery, server VR13/VR14 subsystem validation, DDR4/DDR5 memory rail testing, and distributed power architecture development requiring stable component supply and rapid prototyping support.

Supply support for MAX15118EVKIT# 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 computing, communications, and industrial applications.

The MAX15118EVKIT# belongs to Maxim's high-current DC-DC evaluation platform family, designed specifically to accelerate qualification of integrated power stages in space-constrained, high-efficiency point-of-load applications.

FAQ

What is the primary function of the MAX15118EVKIT#?

The MAX15118EVKIT# is a fully assembled evaluation platform for the MAX15118 18A synchronous step-down regulator. It provides engineers with a ready-to-use hardware reference to validate electrical performance-including efficiency, thermal behavior, load/transient response, soft-start timing, and power-good sequencing-under real-world conditions before integrating the MAX15118 into final PCB designs.

Does the MAX15118EVKIT# support both PWM and skip-mode operation?

Yes, the MAX15118EVKIT# supports both modes via configurable jumpers. Connecting SKIP to EN enables skip mode for improved light-load efficiency; connecting SKIP to GND configures continuous PWM operation. The board includes test points and layout provisions to measure ripple, frequency shift, and efficiency differences between modes across varying loads and input voltages.

Can the MAX15118EVKIT# be used to evaluate prebiased output startup?

Yes, the MAX15118EVKIT# fully supports safe startup into prebiased outputs. Its layout preserves remote ground sense (GSNS) routing and includes accessible test points on VOUT, GSNS, and EN to verify no reverse current flow and proper forced-PWM initiation when starting into a 1V precharged rail - a key requirement for hot-swap and multi-rail sequencing applications.

What thermal performance can be expected from the MAX15118EVKIT# at full 18A load?

Under 25°C ambient, 5V input, and 1.5V output, the MAX15118EVKIT# achieves ≤55°C junction temperature at 18A continuous load with standard 2oz copper PCB and no forced airflow. This confirms the MAX15118's 20.6°C/W θJA rating and validates thermal design margins for compact embedded systems where heatsinking is limited.

Is the MAX15118EVKIT# compatible with industry-standard probing and measurement equipment?

Yes, the MAX15118EVKIT# features SMA-compatible test points for IN, VOUT, LX, PGOOD, EN, and SS/REFIN, plus Kelvin-sense pads for precise voltage and current measurements. Its layout follows JEDEC-compliant reflow profiles and includes dedicated ground rings around sensitive nodes to minimize noise coupling during oscilloscope or power analyzer measurements.