Analog Devices Inc./Maxim Integrated MAX77324EVKIT#

Overview

MAX77324EVKIT# from Analog Devices is an evaluation kit designed to validate the MAX77324 synchronous step-down DC-DC converter IC, supporting 2.5V–4.8V input, 0.6V–2.0V output, up to 1.5A load, and automatic PWM/SKIP mode transition. It enables rapid prototyping of power management in compact battery-powered systems.

For engineers reviewing the MAX77324EVKIT# datasheet, MAX77324EVKIT# pinout, MAX77324EVKIT# application, or MAX77324EVKIT# equivalent, this kit provides a fully assembled, tested reference design with precision test points, configurable output voltage via resistor divider, and direct enable control via J1 jumper for functional validation and efficiency characterization.

Technical Context

The MAX77324EVKIT# implements the MAX77324's internal 0.6V feedback reference and supports output voltage configuration from 0.6V to 2.0V using external RTOP/RBOT resistors (e.g., 30.1kΩ/30.1kΩ for 1.2V default). CTOP = 220pF ensures stability across the full operating range.

It features dedicated test points (VINS, VOUTS, GNDS, EN) and a 2-pin shunt jumper (J1) that connects EN to VIN for soft-start enable or opens to disable via the IC's internal pulldown. Input current measurement is supported at ≤100mA (low-power verification) and up to 1A (full-load evaluation).

Key Specifications

Availability

MAX77324EVKIT# is available at Aetrix Electronics and suitable for power supply validation, battery-powered IoT node development, wearable device power architecture testing, and portable medical electronics requiring stable component supply and fast time-to-test.

Supply support for MAX77324EVKIT# 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 MAX77324EVKIT# belongs to Analog Devices' evaluation platform portfolio for power management ICs, specifically engineered to accelerate design-in and performance validation of ultra-compact, high-efficiency buck regulators in space-constrained portable applications.

FAQ

What does the MAX77324EVKIT# evaluate?

The MAX77324EVKIT# evaluates the MAX77324 synchronous step-down DC-DC converter IC. It provides a fully assembled, tested PCB with input/output test points, configurable output voltage via resistor divider, and jumper-controlled enable functionality. The MAX77324EVKIT# allows engineers to verify efficiency, transient response, and regulation accuracy across its 2.5V–4.8V input and 0.6V–2.0V output range before integrating the MAX77324 into final designs.

How is the output voltage set on the MAX77324EVKIT#?

The MAX77324EVKIT# sets output voltage using an external resistor divider between VOUT, FB, and AGND, leveraging the MAX77324's 0.6V internal reference. Default configuration uses two 30.1kΩ resistors (R1, R2) to deliver 1.2V. Table 2 in the documentation lists RTOP/RBOT/CTOP values for outputs from 0.6V to 2.0V; CTOP = 220pF is recommended for stability across all settings.

What is the role of jumper J1 on the MAX77324EVKIT#?

Jumper J1 on the MAX77324EVKIT# controls the EN pin of the MAX77324. Installing J1 between pins 1–2 connects EN to VIN, enabling the regulator with soft-start. Leaving J1 open disables the device, as the MAX77324 has an internal pulldown resistor on EN. This provides safe, hardware-based enable/disable without requiring external logic signals.

Does the MAX77324EVKIT# support full-load testing at 1.5A?

Yes, the MAX77324EVKIT# supports full-load testing up to 1.5A. It uses a 0.47µH composite inductor (HTTL25201T-R47MSRG-57), 22µF ceramic input capacitors (C2, C3), and a 100µF tantalum output capacitor (C7) - components selected per MAX77324's recommended layout and thermal guidelines. Input current limiting and ammeter range must be adjusted during setup to avoid voltage drop at VINS.

Can the MAX77324EVKIT# be used to measure light-load efficiency?

Yes, the MAX77324EVKIT# supports light-load efficiency measurement. Step 6 of the Quick Start procedure verifies ~45µA input current at no load, confirming SKIP mode operation and low quiescent current behavior. Precision test points (VINS, VOUTS, GNDS) and low-range ammeter capability (10mA setting) enable accurate µA-level current and mV-level voltage measurements essential for characterizing efficiency below 10mA load.