Analog Devices Inc./Maxim Integrated MAX16425EVKIT#

Overview

MAX16425EVKIT# from Analog Devices is an evaluation kit designed to validate the MAX16425 high-efficiency, 25A synchronous buck regulator IC in real-world power delivery applications. It supports 4.5V–16V input, delivers up to 25A at programmable output voltages from 0.6V to 3.3V, and features Quick-PWM™ architecture for fast transient response-ideal for FPGA, ASIC, and processor core rail evaluation.

For engineers reviewing the MAX16425EVKIT# datasheet, MAX16425EVKIT# pinout, MAX16425EVKIT# application, or MAX16425EVKIT# equivalent, this kit enables rapid characterization of efficiency (up to 97% peak), soft-start timing, OCP configuration, differential remote sensing, and STAT/PG reporting under load-without requiring custom PCB design.

Technical Context

The MAX16425EVKIT# implements the MAX16425 IC in a fully assembled, tested PCB layout with 27-bump WLCSP (2.2mm × 3.8mm) footprint compatibility. It includes jumper-configurable bias supply (1.8V LDO U2), STAT/OE pull-up options, R_SEL/C_SEL-based scenario selection (6 f_SW settings up to 780kHz at V_OUT = 1V), and Kelvin-sense connections for precision regulation.

Hardware features support full functional validation: differential remote sense with open-circuit detection, analog current/temperature reporting, percentage-based OVP/PWRGD, adaptive dead-time control, and ceramic-capacitor-only operation. The board ships preset to 1V/25A output and allows external VREF (0.8V–1.1V) with low-pass filtering per IC datasheet requirements.

Key Specifications

Availability

MAX16425EVKIT# is available at Aetrix Electronics and suitable for FPGA power validation, ASIC core rail prototyping, and high-current DC-DC reference design requiring stable component supply, pre-validated thermal performance, and production-ready layout practices.

Supply support for MAX16425EVKIT# 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.

The MAX16425EVKIT# belongs to Analog Devices' high-density power management evaluation platform family, engineered to accelerate adoption of integrated switching regulators in space-constrained, high-efficiency applications like AI accelerators and telecom infrastructure.

FAQ

What is the primary function of the MAX16425EVKIT#?

The MAX16425EVKIT# is a fully assembled evaluation platform for the MAX16425 25A synchronous buck regulator IC. It enables engineers to validate voltage regulation accuracy, transient response, efficiency curves, protection features (OCP, OVP, UVLO), and programmability (f_SW, soft-start, VREF) without designing custom hardware. The board includes all necessary jumpers, test points, and connectors for lab-based characterization of the MAX16425 IC.

Does the MAX16425EVKIT# support both MAX16425 and MAX16425A ICs?

No-the MAX16425EVKIT# is specifically configured and documented for the MAX16425 IC. While the product name references both variants, the schematic (U1 marked MAX16425GCJ+), Bill of Materials, and configuration tables (Table 1a) confirm it evaluates only the MAX16425. The MAX16425AEVKIT# part number is a separate kit for the MAX16425A variant with different R_SEL/C_SEL mapping and reporting modes.

How is output voltage set on the MAX16425EVKIT#?

The MAX16425EVKIT# ships preset to 1V output using internal VREF = 0.95V and a fixed resistive divider (R_FB1/R_FB2). Output voltage can be reconfigured between 0.6V and 3.3V by changing R_SEL (R1) to select VREF (0.6V or 0.95V) and recalculating R_FB1/R_FB2 per Equation 1. External VREF (0.8V–1.1V) is also supported via the SENSE− node with RC filter (RF = 2.2kΩ, CF = 0.22µF).

What are the key jumpers used to configure the MAX16425EVKIT#?

Key jumpers on the MAX16425EVKIT# include: J4/J12 (enable 1.8V on-board LDO for VCC bias), J15-4/6 (pull OE HIGH to enable regulator), J15-3/5 (pull STAT HIGH for status monitoring), J16-1/2 (close remote sense loop), and J10 (force OE LOW to shut down). These allow flexible biasing, enable control, fault reporting, and sensing-without soldering or component changes.

Can the MAX16425EVKIT# be used for efficiency measurements?

Yes-the MAX16425EVKIT# supports accurate efficiency measurement per Equation 3. It provides dedicated test points: J3/VDD1/GND1 for input voltage/current sensing, J11/J13 for output voltage, J8 for output current, and J12-2 for bias supply current. The board's layout minimizes parasitic losses, and instructions specify using sense lines and current-limited 1.8V bias to isolate LDO contribution during testing.