Analog Devices Inc./Maxim Integrated MAX15023EVKIT+

Overview

MAX15023EVKIT+ from Maxim Integrated is an evaluation kit for the MAX15023 dual synchronous step-down controller, designed to validate power delivery in point-of-load (POL) applications requiring two independent, high-current DC outputs. It supports input voltages from 5.5V to 28V, delivers adjustable outputs from 0.6V to 85% of VIN, and enables interleaved 180° out-of-phase operation to reduce input ripple and EMI-ideal for LCD TV secondary supplies and DSP power systems.

For engineers reviewing the MAX15023EVKIT+ datasheet, MAX15023EVKIT+ setup, MAX15023EVKIT+ test procedure, or MAX15023EVKIT+ compatible controller ICs, this kit provides full hardware reference design, preconfigured layout, thermal validation, and measurement points for evaluating startup behavior, load transient response, power sequencing, hiccup-mode protection, and adaptive soft-start into prebiased outputs.

Technical Context

The MAX15023EVKIT+ implements the MAX15023 dual-channel PWM voltage-mode buck controller in a fully assembled, tested PCB layout with external MOSFETs, inductors, and compensation networks. It validates key features including lossless current sensing via low-side MOSFET R_DS(ON), resistor-adjustable 30mV–300mV cycle-by-cycle source/sink peak current limits, and proprietary adaptive digital soft-start that extends ramp time when current limit is hit during startup.

Each channel operates at independently set switching frequencies (200kHz–1MHz via RT resistors), supports ≥12A loads, and delivers ±1% output voltage accuracy using a 600mV internal reference. The kit demonstrates interleaved operation reducing RMS input ripple by ~30% versus single-phase designs and enables precise power-good monitoring and sequencing via open-drain PGOOD1/PGOOD2 outputs.

Key Specifications

Availability

MAX15023EVKIT+ is available at Aetrix Electronics and suitable for point-of-load regulators, LCD TV secondary supplies, and DSP power supplies requiring stable component supply, rapid prototyping validation, and production-ready reference design verification.

Supply support for MAX15023EVKIT+ 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, communications, and consumer applications.

The MAX15023 product line delivers dual-output synchronous buck controllers optimized for high-efficiency, high-current POL conversion in space-constrained systems where input ripple reduction, precise sequencing, and robust short-circuit protection are critical.

FAQ

What is the primary function of the MAX15023EVKIT+?

The MAX15023EVKIT+ is an evaluation kit designed to demonstrate and validate the MAX15023 dual synchronous step-down controller. It provides a fully assembled PCB with all necessary external components-including MOSFETs, inductors, feedback dividers, and timing resistors-to evaluate performance metrics such as efficiency, load transient response, power sequencing, hiccup-mode protection, and prebiased startup behavior under real-world conditions.

Does the MAX15023EVKIT+ include the MAX15023 IC?

Yes, the MAX15023EVKIT+ includes the MAX15023ETG+ controller IC in its 24-pin TQFN-EP package mounted on the board. The kit also integrates dual high-side/low-side MOSFET drivers, external power MOSFETs, output inductors, input/output capacitors, and configurable feedback and current-limit networks to enable immediate functional testing without additional component selection.

Can the MAX15023EVKIT+ be used to evaluate both channels simultaneously?

Yes, the MAX15023EVKIT+ is configured to operate both buck channels concurrently with independent output voltages, enabling evaluation of interleaved 180° out-of-phase operation. This configuration reduces total input RMS ripple current and validates system-level benefits including lower EMI, smaller input capacitance requirements, and improved thermal distribution across the board.

What types of measurements can be performed using the MAX15023EVKIT+?

Engineers can perform comprehensive measurements using the MAX15023EVKIT+, including output voltage accuracy and regulation, load transient response (with up to 5A step changes), line transient rejection, startup timing and monotonicity into prebiased outputs, PGOOD assertion timing, thermal imaging of MOSFETs and IC, and current-limit threshold validation via LIM1/LIM2 resistor adjustment-all supported by test points and jumper-configurable nodes on the board.

Is the MAX15023EVKIT+ RoHS-compliant and lead-free?

Yes, the MAX15023EVKIT+ uses RoHS-compliant, lead-free components throughout, including the MAX15023ETG+ IC (denoted by the '+' suffix), passives, connectors, and PCB finish. The assembly adheres to JEDEC J-STD-020 moisture sensitivity level (MSL) requirements and supports standard reflow profiles for lead-free soldering.