Analog Devices Inc./Maxim Integrated MAX77827EVKIT#

Overview

MAX77827EVKIT# from Maxim Integrated is an evaluation kit designed to validate the MAX77827 1.6A buck-boost converter IC in real-world power delivery systems. It supports 1.8V–5.5V input, delivers factory-default 3.3V output (adjustable 2.3V–5.3V via SEL resistor), and features FPWM/SKIP mode selection and UVLO thresholds of 2.6V (rising) / 1.9V (falling). It is used for rapid prototyping of portable battery-powered devices requiring wide-input, regulated output rails.

For engineers reviewing the MAX77827EVKIT# datasheet, MAX77827EVKIT# pinout, MAX77827EVKIT# application, or MAX77827EVKIT# equivalent, this page provides verified hardware configuration details, jumper-controlled functional modes (EN, FPWM), test point access (VINS, OUTS, POK), and direct correlation to the MAX77827CEWC+ WLP device under evaluation.

Technical Context

The MAX77827EVKIT# implements the full reference design for the MAX77827CEWC+, a 12-bump WLP buck-boost regulator with integrated power FETs and current-mode control. It operates across 1.8V–5.5V input and delivers up to 1.6A continuous output with programmable voltage setpoint via external RSEL resistor (R3), enabling precise 50mV-step adjustment from 2.3V to 5.3V.

Hardware-level configuration is managed through three shunt jumpers: J2 (EN enable), J10 (EN disable), and J7 (FPWM vs. SKIP mode selection). Input and output sense points (VINS/PGNDS_IN, OUTS/PGNDS_OUT) support high-accuracy measurement without loading effects, and GPIO-accessible signals include EN, POK, and FPWM.

Key Specifications

Availability

MAX77827EVKIT# is available at Aetrix Electronics and suitable for portable medical monitors, USB-C PD sink applications, industrial handhelds, and IoT edge nodes requiring stable component supply during pre-production validation and firmware integration phases.

Supply support for MAX77827EVKIT# 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 industrial, automotive, and computing applications.

The MAX77827EVKIT# belongs to Maxim's battery-power management evaluation platform family, engineered to accelerate development of compact, high-efficiency DC-DC solutions for space-constrained, battery-fed systems.

FAQ

What is the default output voltage of the MAX77827EVKIT# and how is it set?

The MAX77827EVKIT# ships with a factory-default output voltage of 3.3V, established by the absence of a populated R3 resistor (open circuit per Table 2). This configuration corresponds directly to the MAX77827CEWC+'s internal SEL logic mapping. Users can adjust the output by populating R3 with a precision 1% resistor matching the desired VOUT value in the RSEL selection table.

Which MAX77827 variant does the MAX77827EVKIT# evaluate, and what package is used?

The MAX77827EVKIT# evaluates the MAX77827CEWC+, a 12-bump wafer-level package (WLP) variant of the MAX77827 buck-boost converter. The board is explicitly compatible with all MAX77827 WLP versions, but the default and tested device is the MAX77827CEWC+, as confirmed in the Bill of Materials and schematic.

How do I configure forced PWM mode on the MAX77827EVKIT#?

To enable forced PWM mode on the MAX77827EVKIT#, move the J7 jumper from its default position (pins 2–3, SKIP mode enabled) to pins 1–2. This connects the FPWM pin of the MAX77827CEWC+ to VIN, asserting high logic and disabling pulse-skipping operation - essential for low-noise, constant-frequency testing in sensitive analog or RF subsystems.

What test points are accessible on the MAX77827EVKIT# for measuring input and output performance?

The MAX77827EVKIT# provides dedicated Kelvin sense points: VINS and PGNDS_IN for accurate input voltage measurement, and OUTS and PGNDS_OUT for true output voltage sensing - eliminating PCB trace resistance errors. Additional test points include EN, FPWM, and POK for real-time signal monitoring during dynamic load transitions.

Can the MAX77827EVKIT# operate with input voltages below 2.6V, and what happens at UVLO?

Yes, the MAX77827EVKIT# can accept input down to 1.8V per the MAX77827CEWC+ specification, but the IC enters undervoltage lockout (UVLO) when VIN falls below 1.9V (falling threshold). Operation resumes only after VIN rises above 2.6V (rising threshold), preventing erratic regulation during brown-out conditions - critical for reliable battery-run system behavior.