Analog Devices Inc./Maxim Integrated MAX77813EVKIT#

Overview

MAX77813EVKIT# from Maxim Integrated is an evaluation kit designed to validate the MAX77813 2A buck-boost converter IC in real-world power management applications. It supports input voltages from 2.3V to 5.5V, delivers programmable output from 2.6V to 5.14V (factory-set to 3.3V), and enables full I²C register control via the included MINIQUSB interface board.

For engineers reviewing the MAX77813EVKIT# datasheet, MAX77813EVKIT# pinout, MAX77813EVKIT# application, or MAX77813EVKIT# equivalent, this kit provides a fully assembled, tested reference design with accessible test points (EN, POK, ILIM), jumper-configurable operation modes, and Windows-compatible GUI software for voltage tuning and status monitoring.

Technical Context

The MAX77813EVKIT# implements the MAX77813EWP33+ in its native 20-bump WLP package, configured as a synchronous 4-switch buck-boost regulator. It integrates onboard LDO (MAX8511EXK18+) for VIO generation and uses discrete ceramic capacitors (C1–C9) and a 1μH power inductor (L1) matching the IC's recommended layout.

Hardware control is enabled through six configurable jumpers (JU1–JU6) for VIO sourcing, EN logic, ILIM threshold selection, LDO input, and I²C pull-up configuration. Communication relies on MINIQUSB-to-USB translation to emulate standard I²C transactions with the host PC.

Key Specifications

Availability

MAX77813EVKIT# is available at Aetrix Electronics and suitable for power architecture validation, battery-powered portable device development, and embedded PMIC integration requiring stable component supply and rapid prototyping capability.

Supply support for MAX77813EVKIT# 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 industrial, automotive, and computing applications.

The MAX77813 product line targets compact, high-efficiency power conversion in space-constrained portable electronics, delivering regulated output across input voltages below and above the target rail.

FAQ

What is the primary function of the MAX77813EVKIT#?

The MAX77813EVKIT# is a fully assembled evaluation platform for the MAX77813 buck-boost converter. It allows engineers to verify regulation performance, test I²C programmability, and validate thermal behavior under load-without designing custom PCBs. The kit includes the MAX77813EWP33+, MINIQUSB interface, GUI software, and jumper-based configuration options for rapid iteration.

Does the MAX77813EVKIT# require external power supplies beyond the main input?

Yes-the MAX77813EVKIT# requires a 2.3V–5.5V DC input source for VIN, and optionally a 1.8V supply if JU1 is set to position 2–3 (to override the onboard LDO). The onboard MAX8511EXK18+ LDO normally supplies VIO from VIN when JU4 is closed (1–2), eliminating need for external 1.8V unless specific biasing is required.

How is I²C communication implemented on the MAX77813EVKIT#?

I²C communication on the MAX77813EVKIT# is handled by the MINIQUSB interface board, which translates USB commands from the Windows GUI into I²C signals sent to the MAX77813. Pull-up resistors for SDA/SCL are optional (via JU5/JU6); default settings leave them open, allowing user-defined termination per system requirements.

Can the output voltage of the MAX77813EVKIT# be changed without software?

No-the output voltage is programmed exclusively via I²C register writes using the EV kit GUI software. There is no hardware resistor-divider or trimmer potentiometer for analog adjustment. The factory default is 3.3V, and all other values (2.6V–5.14V in 20mV steps) require software interaction with the MAX77813's VOUT_SET register.

What test points are accessible on the MAX77813EVKIT# and their purpose?

The MAX77813EVKIT# provides dedicated test points for EN (enable control), POK (power-ok status flag), and ILIM (current-limit selection node). These allow oscilloscope or multimeter access to critical control and status signals without soldering or board modification-enabling real-time verification of startup sequencing, fault response, and current-limit behavior during dynamic load testing.