Analog Devices Inc./Maxim Integrated MAX77816EVKIT#

Overview

MAX77816EVKIT# from Maxim Integrated is an evaluation kit for the MAX77816 high-efficiency, 5A-switch buck-boost regulator IC. It enables rapid validation of the IC's seamless buck-boost operation, I²C-programmable output voltage (2.60V–5.14V), and dynamic GPIO-configurable functions in single-cell Li-ion battery-powered systems such as smartphones and wearables.

For engineers reviewing the MAX77816EVKIT# datasheet, MAX77816EVKIT# pinout, MAX77816EVKIT# application, or MAX77816EVKIT# equivalent, this kit provides verified reference design, thermal performance data, layout-compliant PCB, and full register-access firmware examples to accelerate power architecture integration and system-level transient testing.

Technical Context

The MAX77816EVKIT# implements the MAX77816 IC in a 20-bump WLP (1.827mm × 2.127mm, 0.4mm pitch) with a four-switch H-bridge topology operating at 2.25–2.75MHz PWM frequency. It supports true buck, boost, and buck-boost modes with programmable slew-rate control (20/40 mV/µs ramp-up; 5/10 mV/µs ramp-down) and active discharge via internal 100Ω resistor.

Key interface features include I²C-compatible SDA/SCL pins (1MHz max clock, 550pF bus load), EN pin with 800kΩ internal pulldown, and multifunction GPIO configurable for FPWM enable, ILIM selection, POK indication, or interrupt signaling - all validated on the EVKIT's populated board with 1µH inductor and 47µF output capacitor.

Key Specifications

Availability

MAX77816EVKIT# is available at Aetrix Electronics and suitable for smartphone power subsystem validation, wearable device battery regulation testing, and RF power amplifier supply characterization requiring stable component supply and repeatable lab-grade measurement conditions.

Supply support for MAX77816EVKIT# 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 high-reliability applications in mobile, industrial, and automotive markets.

The MAX77816 product line delivers high-current, high-efficiency buck-boost regulation for space-constrained, battery-powered devices where input voltage may fall below or rise above the required system rail - optimized for seamless mode transition and minimal external components.

FAQ

What is the primary purpose of the MAX77816EVKIT#?

The MAX77816EVKIT# is an evaluation kit designed exclusively to validate the electrical performance, thermal behavior, and I²C register control of the MAX77816 buck-boost regulator IC. It includes a fully assembled PCB with the MAX77816 in its native 20-bump WLP package, pre-populated 1µH inductor, 47µF output capacitor, and all necessary bypass components - enabling immediate bench testing without custom layout or component sourcing. The MAX77816EVKIT# does not function as a production power solution but serves as a reference for system integration.

Does the MAX77816EVKIT# support all MAX77816 variants (A/B/C/D/E/F)?

Yes, the MAX77816EVKIT# supports all MAX77816 variants because it interfaces directly with the IC's standard pinout and register map. The GPIO functionality (e.g., FPWM enable on MAX77816A, ILIM selection on MAX77816B, POK indicator on MAX77816D) is implemented via jumper-selectable configurations or software-controlled register writes - no hardware modification is needed. All variants share identical electrical characteristics, package, and I²C interface, making the MAX77816EVKIT# universally applicable across the family.

Can the MAX77816EVKIT# be used to measure load transient response?

Yes, the MAX77816EVKIT# is explicitly configured for accurate load transient analysis: it uses a 1µH inductor and 47µF output capacitor matching the typical application circuit, includes test points for VOUT, LXBB1, LXBB2, and EN, and supports fast current-step loads via external signal generator coupling. Published data shows ≤50mV deviation during 10mA→1.5A transients (15µs rise time) and ≤50mV during line transients (2.9V→3.4V, 25µs), all measurable using the MAX77816EVKIT#'s accessible nodes and ground-referenced layout.

Is the MAX77816EVKIT# RoHS-compliant and suitable for production design review?

Yes, the MAX77816EVKIT# is RoHS-compliant and built with production-grade components and PCB fabrication standards. Its HDI layout follows Maxim's recommended guidelines - including star-grounded PGNDBB connections, minimized high-di/dt loop area, dedicated SYS bypassing, and proper LX trace routing - making it a trusted reference for schematic capture, layout verification, and EMI pre-compliance checks prior to final design release.

Does the MAX77816EVKIT# include firmware or GUI software?

Yes, the MAX77816EVKIT# ships with Maxim's official EVKIT software suite, including Windows-based GUI for real-time I²C register read/write, output voltage sweep, GPIO configuration, and status monitoring (e.g., thermal flag, OCP, POK). It also provides Python and C API libraries, register map documentation, and example scripts for automated testing - all downloadable from Analog Devices' MAX77816 product page. No additional license or dongle is required to operate the MAX77816EVKIT#.