Analog Devices Inc./Maxim Integrated MAX17224EVKIT#

Overview

MAX17224EVKIT# from Maxim Integrated is an evaluation kit designed to characterize the MAX17220–MAX17225 family of ultra-low quiescent current (250nA typical) synchronous step-up DC-DC converters. It integrates two independent test circuits-one with the MAX17224ELT+ in 6-pin µDFN and one with the MAX17224ENT+ in 6-pin WLP-each supporting 400mV–5.5V input, resistor-configurable 1.8V–5V output (100mV steps), and up to 425mA output current. It enables rapid validation of nanoscale boost converter performance in energy-harvesting and battery-powered sensor nodes.

For engineers reviewing the MAX17224EVKIT# datasheet, MAX17224EVKIT# pinout, MAX17224EVKIT# application, or MAX17224EVKIT# equivalent, this kit provides hands-on verification of startup voltage (0.88V typical at 3kΩ), true shutdown functionality, dual-package interoperability, and configurable output regulation across sub-1V input conditions-critical for low-power IoT node design and coin-cell applications.

Technical Context

The MAX17224EVKIT# implements two fully independent boost converter evaluation channels on a single 2-layer PCB: one optimized for the µDFN package (U101, configured for 3V output) and one for the WLP package (U1, configured for 5V output). Each channel includes dedicated input terminals (IN/IN1), output terminals (3V/5V), ground posts (GND/GND1), and enable jumpers (JU101/JU1) that route EN either to input via pullup or to GND for disable.

Both circuits use external 2.2µH shielded inductors (L1/L101), 10µF ceramic output capacitors (C1/C4/C101/C104), and resistor-divider networks (e.g., R101 = 133kΩ for 3V) to set output voltage. The board supports direct coin-cell powering: CR1632 for the WLP circuit (V1) and Energizer 364/363 for the µDFN circuit (V101), demonstrating real-world cold-start capability down to 400mV.

Key Specifications

Availability

MAX17224EVKIT# is available at Aetrix Electronics and suitable for energy-harvesting systems, wearable medical sensors, and ultra-low-power wireless transceivers requiring stable component supply and validated reference designs for nanoscale boost conversion.

Supply support for MAX17224EVKIT# 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 MAX17220–MAX17225 product line was engineered specifically for battery-constrained and energy-harvesting systems requiring <300nA quiescent current, sub-1V startup, and true shutdown-targeting applications where every nanoamp impacts operational lifetime.

FAQ

What ICs does the MAX17224EVKIT# evaluate?

The MAX17224EVKIT# evaluates two specific variants from the MAX17220–MAX17225 family: the MAX17224ELT+ in 6-pin µDFN package (pre-installed on U101) and the MAX17224ENT+ in 6-pin WLP package (pre-installed on U1). Both are ultra-low-quiescent-current synchronous boost converters. The board also supports socket replacement with other members of the same family, such as MAX17220 or MAX17225, using the same footprint and biasing network.

Can the MAX17224EVKIT# be powered by batteries?

Yes, the MAX17224EVKIT# supports direct battery powering: the WLP circuit (U1) accepts a CR1632 lithium coin cell via holder V1, and the µDFN circuit (U101) accepts an Energizer 364/363 silver oxide cell via holder V101. This validates real-world cold-start behavior down to 400mV input, matching the specified operating range of the evaluated ICs.

How do I configure different output voltages on the MAX17224EVKIT#?

Output voltage is set by resistor dividers on each channel. For the 3V circuit (U101), R101 = 133kΩ sets the feedback ratio; spare resistors (R101A–R101D) are provided for reconfiguration to 2V, 2.5V, 3.3V, or other values within 1.8V–5V. The 5V circuit (U1) uses a similar divider; jumper positions and schematic references (e.g., Table 1/2) define default configurations and modification paths.

What is the purpose of jumpers JU1 and JU101 on the MAX17224EVKIT#?

JU1 controls enable for the WLP circuit (U1): shunt position 1–2 connects EN to IN1 via R2 (enabled), while 2–3 pulls EN to GND1 (disabled). JU101 performs the same function for the µDFN circuit (U101), connecting EN to IN via R102 (position 1–2) or to GND (position 2–3). Both default to enabled, allowing immediate evaluation without soldering.

Does the MAX17224EVKIT# include all components needed for basic evaluation?

Yes, the MAX17224EVKIT# ships fully assembled and tested with both MAX17224ELT+ and MAX17224ENT+ installed, along with all required passives (capacitors, inductors, resistors), terminal blocks, battery holders, and test points. No additional components are needed to verify startup, regulation, load transient response, or true shutdown behavior per the datasheet specifications of the evaluated ICs.