Analog Devices Inc./Maxim Integrated MAX15021EVKIT+

Overview

MAX15021EVKIT+ from Maxim Integrated is an evaluation kit for the MAX15021 dual-output synchronous buck DC-DC regulator, supporting 4A/2A output currents, 500kHz–4MHz programmable switching frequency, and tracking/sequencing operation across 2.5V–5.5V input. It enables rapid validation of multivoltage power rails in space-constrained industrial and automotive systems.

For engineers reviewing the MAX15021EVKIT+ datasheet, MAX15021EVKIT+ setup guide, MAX15021EVKIT+ test points, or MAX15021EVKIT+ compatible IC alternatives, this kit provides verified reference design, pre-layout PCB, thermal performance data, and configurable sequencing logic to accelerate power architecture development and reduce qualification risk.

Technical Context

The MAX15021EVKIT+ implements the full functional architecture of the MAX15021 IC-including dual 180° out-of-phase PWM controllers, external RT-resistor frequency programming, digital soft-start/soft-stop with 64-step ramping, and SEL-pin configurable tracking (coincident/ratiometric) or sequencing modes. It supports prebiased startup and glitch-free power-down.

It integrates all critical support circuitry: input/output filtering with ceramic capacitors, 5mm × 5mm TQFN-EP footprint replication, exposed-pad thermal management, and accessible test points for FB1/FB2, COMP1/COMP2, EN1/EN2, LX1/LX2, and RT. The board operates across –40°C to +125°C ambient per the IC's specification.

Key Specifications

Availability

MAX15021EVKIT+ is available at Aetrix Electronics and suitable for RFID reader cards, Power-over-Ethernet (PoE) IP phones, and automotive multimedia systems requiring stable component supply, fast design iteration, and production-ready power validation.

Supply support for MAX15021EVKIT+ 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 applications.

The MAX15021 product line delivers compact, high-frequency dual-output DC-DC regulation with integrated tracking/sequencing-designed for multivoltage SoC and FPGA power domains where size, noise immunity, and controlled power-up timing are critical.

FAQ

What is the primary function of the MAX15021EVKIT+?

The MAX15021EVKIT+ is a fully assembled and tested evaluation platform for the MAX15021 dual-output synchronous buck regulator IC. It allows engineers to validate voltage tracking, sequencing behavior, efficiency, thermal performance, and transient response under real-world load conditions without designing custom hardware. The MAX15021EVKIT+ includes all necessary passive components, test points, and configuration jumpers to exercise every key feature of the MAX15021 IC.

Does the MAX15021EVKIT+ support both tracking and sequencing modes?

Yes, the MAX15021EVKIT+ supports both tracking and sequencing modes as implemented by the underlying MAX15021 IC. The SEL pin is brought out to a header, allowing users to configure it as ground (sequencing), tied to AVIN (Output 1 master tracking), or left floating (Output 2 master tracking). Coincident and ratiometric tracking behaviors, including soft-start/soft-stop synchronization and prebiased startup, are fully demonstrable using the MAX15021EVKIT+.

Can the MAX15021EVKIT+ be used to evaluate thermal performance?

Yes, the MAX15021EVKIT+ replicates the 5mm × 5mm TQFN-EP package layout and thermal pad (EP) connection of the MAX15021 IC, with the exposed pad soldered directly to a large internal copper plane tied to SGND. This enables accurate junction-to-board thermal measurement per JEDEC JESD51-7. Thermal imaging and temperature profiling under 4A/2A loads are supported, and the board includes thermal test points near LX1, LX2, and EP.

What input and output voltage ranges can be validated using the MAX15021EVKIT+?

The MAX15021EVKIT+ supports the full IC-rated input range of 2.5V to 5.5V on AVIN, PVIN1, and PVIN2. Output voltages are adjustable from 0.6V to VAVIN via FB1/FB2 resistive dividers - validated configurations include 3.3V/1.5V, 1.8V/1.0V, and 1.0V/2.5V. All feedback networks use 0603 resistors with solder jumpers, enabling quick reconfiguration without component replacement.

Is the MAX15021EVKIT+ compatible with standard lab equipment?

Yes, the MAX15021EVKIT+ features SMA-compatible test points for EN1, EN2, FB1, FB2, COMP1, COMP2, LX1, LX2, RT, and PGND/SGND, plus screw-terminal inputs for PVIN1/PVIN2 and banana-jack outputs for VOUT1/VOUT2. It supports oscilloscope probing, current shunt measurement, and programmable DC supply integration. The board includes onboard LED indicators for regulator enable status and hiccup-mode fault detection - all accessible without soldering.