Analog Devices Inc./Maxim Integrated MAX17271EVKIT#

Overview

The MAX17271EVKIT# from Maxim Integrated is an evaluation kit for the MAX17271 nanoPower triple-output SIMO (Single-Inductor Multiple-Output) buck-boost regulator, designed to validate power architecture in space-constrained wearable electronics. It supports 2.7V–5.5V input, delivers three independently configurable outputs (e.g., 1.2V/80mA, 1.8V/75mA, 3.3V/50mA), and enables I²C-based voltage/current limit programming and power sequencing - critical for Bluetooth headsets and fitness bands.

For engineers reviewing the MAX17271EVKIT# datasheet, MAX17271EVKIT# pinout, MAX17271EVKIT# application, or MAX17271EVKIT# equivalent, this kit provides full hardware validation of the MAX17271's ultra-low-quiescent-current operation (1.3µA with all outputs enabled), programmable peak inductor current, soft-start behavior, and I²C-controlled power-good signaling in real PCB layouts.

Technical Context

The MAX17271EVKIT# implements the complete reference design for the MAX17271 IC, including its 2.2µH single inductor, 10µF output capacitors per rail, BST capacitor, and proper PGND/VPWR decoupling. It replicates the IC's proprietary time-interleaved SIMO control scheme that dynamically allocates switching cycles across OUT1/OUT2/OUT3 based on load demand while maintaining regulation within ±2% accuracy.

This kit validates key functional blocks: the I²C interface (SCL/SDA/VIO at 1.7V–3.6V), push-button ON input with 10ms debounce, open-drain IRQB and RSTB signals, and active-discharge resistors (100Ω per output, software-controllable). All thermal and EMI-sensitive layout practices - including thermal vias under the WLP package and minimized high-di/dt loop area - are implemented per Maxim's AN1891 land pattern guidance.

Key Specifications

Availability

The MAX17271EVKIT# is available at Aetrix Electronics and suitable for wearable electronics development, IoT sensor node prototyping, and health monitor power architecture validation requiring stable component supply and rapid design iteration.

Supply support for MAX17271EVKIT# 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 demanding applications in industrial, medical, and portable electronics.

The MAX17271EVKIT# belongs to Maxim's nanoPower SIMO regulator evaluation platform family, engineered specifically to accelerate adoption of ultra-low-power, multi-rail DC-DC solutions in battery-operated wearables where board area and quiescent current are critical constraints.

FAQ

What is the primary purpose of the MAX17271EVKIT#?

The MAX17271EVKIT# is a fully assembled and tested evaluation platform for the MAX17271 SIMO buck-boost regulator. It enables engineers to verify electrical performance, validate I²C configuration, test power sequencing behavior, and characterize efficiency/thermal response before committing to custom PCB design - directly supporting rapid development of compact, battery-efficient wearables.

Does the MAX17271EVKIT# support both WLP and TQFN packages of the MAX17271?

No. The MAX17271EVKIT# is designed exclusively for the 16-pin TQFN package (3mm × 3mm × 0.75mm, package code T1633+5). It does not support the 4×4mm WLP variant (N161A1+1), which requires different land patterns, soldering profiles, and thermal management strategies per AN1891.

Can the MAX17271EVKIT# be used to evaluate the MAX17270?

No. The MAX17271EVKIT# is hardware- and firmware-specific to the MAX17271. It includes the I²C pull-up resistors, SDA/SCL routing, VIO supply, ON button circuit, and IRQB/RSTB signal conditioning required for the MAX17271's digital interface - none of which are present or functional on the MAX17270, which uses resistor-based RSEL programming instead.

What output configurations are preloaded on the MAX17271EVKIT#?

The MAX17271EVKIT# ships with default output voltages set via I²C registers: OUT1 = 1.2V (80mA capability), OUT2 = 1.8V (75mA), and OUT3 = 3.3V (50mA), matching the typical application circuit in the MAX17271 datasheet. These can be reprogrammed in-circuit using the provided GUI or direct register writes over I²C.

Does the MAX17271EVKIT# include firmware or software tools?

Yes. The MAX17271EVKIT# ships with Maxim's EVKIT GUI software (Windows-based), enabling real-time read/write access to all MAX17271 registers - including TVSIMOx voltage settings, ILIM[1:0] current limits, ENCTL sequencing controls, and ADE active-discharge enable bits - without requiring custom host code or JTAG debuggers.