Analog Devices Inc./Maxim Integrated MAX17223EVKIT#

Overview

MAX17223EVKIT# 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 circuits-each pre-populated with a MAX17223ELT+ (6-pin µDFN) and MAX17223ENT+ (6-pin WLP)-supporting input ranges from 400mV to 5.5V, resistor-configurable outputs from 1.8V to 5V in 100mV steps, and output currents up to 225mA per channel. It enables rapid validation of nanoscale power conversion in energy-harvesting and battery-powered IoT sensor nodes.

For engineers reviewing the MAX17223EVKIT# datasheet, MAX17223EVKIT# pinout, MAX17223EVKIT# application, or MAX17223EVKIT# equivalent, this board provides hands-on verification of startup voltage (0.88V typical with 3kΩ load), dual-package interoperability, configurable output regulation, and proven 2-layer PCB layout for ultra-low-power boost topologies.

Technical Context

The MAX17223EVKIT# implements two discrete, isolated boost converter channels-one based on the MAX17223ELT+ (µDFN) configured for 3V/225mA output at 1.8V input, and the other on the MAX17223ENT+ (WLP) configured for 5V/225mA output at 3V input. Each channel uses external resistive feedback (R101 = 133kΩ for 3V; factory-set for 5V) and discrete inductors (2.2µH DFE201612E-2R2M and XFL4020-222ME) to realize full functionality without requiring additional components.

Hardware-level enable control is implemented via shunt jumpers JU101 (for µDFN circuit) and JU1 (for WLP circuit), allowing EN to be tied to input or GND. Battery holders (CR1632 for WLP, Energizer 364/363 for µDFN) support direct primary-cell evaluation, while spare resistors and inductors on the bottom side permit reconfiguration of output voltage (2V, 2.5V, 3V, 3.3V) and current capability (100mA/225mA/425mA).

Key Specifications

Availability

MAX17223EVKIT# is available at Aetrix Electronics and suitable for energy-harvesting systems, wearable medical sensors, and ultra-low-power IoT edge nodes requiring stable component supply and validated reference design implementation.

Supply support for MAX17223EVKIT# 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) designs precision analog, mixed-signal, and power management ICs for industrial, automotive, communications, and computing applications.

The MAX17220–MAX17225 product line delivers nanoscale power conversion for battery-constrained systems, emphasizing sub-1V startup, 250nA quiescent current, and true shutdown-targeting energy harvesting, wireless sensor networks, and disposable medical devices.

FAQ

What is the purpose of the MAX17223EVKIT#?

The MAX17223EVKIT# is a fully assembled and tested evaluation platform for the MAX17220–MAX17225 family of ultra-low-I_Q boost converters. It allows engineers to validate performance-including startup behavior, efficiency, output regulation, and package-specific thermal response-using two pre-installed IC variants: MAX17223ELT+ (µDFN) and MAX17223ENT+ (WLP). The MAX17223EVKIT# supports immediate bench testing without soldering or configuration.

Can the MAX17223EVKIT# evaluate other parts in the MAX17220–MAX17225 family?

Yes-the MAX17223EVKIT# is designed for cross-family evaluation. U1 and U101 are socketed (via solder pads), enabling replacement with any MAX17220–MAX17225 variant in compatible 6-pin µDFN or WLP packages. The board's fixed feedback network and inductor selection remain valid across the family, and the MAX17223EVKIT# schematic and BOM document all necessary layout and component requirements for safe substitution.

What output voltages are preconfigured on the MAX17223EVKIT#?

The MAX17223EVKIT# ships with two fixed configurations: the µDFN circuit (U101, MAX17223ELT+) delivers 3V at up to 225mA, set by R101 = 133kΩ; the WLP circuit (U1, MAX17223ENT+) delivers 5V at up to 225mA, using factory-trimmed internal feedback. Both outputs are resistor-configurable from 1.8V to 5.0V in 100mV increments-spare resistors (R101A–R101D) are provided on the PCB bottom side for reconfiguration.

Does the MAX17223EVKIT# support battery-powered operation?

Yes-the MAX17223EVKIT# includes dedicated SMT battery holders: V1 accepts a CR1632 lithium coin cell (for the WLP circuit), and V101 accepts an Energizer 364/363 silver oxide cell (for the µDFN circuit). This enables true standalone evaluation under real-world low-voltage, low-current source conditions-critical for validating startup at 0.88V and operation down to 400mV input, as specified for the MAX17223EVKIT#.

What is the role of jumpers JU1 and JU101 on the MAX17223EVKIT#?

JU1 controls enable logic for the WLP circuit (U1, MAX17223ENT+): shunt position 1–2 ties EN to IN1 via pullup (default enabled); position 2–3 grounds EN (disabled). JU101 performs the same function for the µDFN circuit (U101, MAX17223ELT+), tying EN to IN or GND. Both jumpers allow hardware-level on/off control independent of software or external logic-essential for measuring true shutdown current (<100nA) and verifying enable timing on the MAX17223EVKIT#.