Analog Devices Inc./Maxim Integrated MAX77847EVKIT#

Overview

MAX77847EVKIT# from Analog Devices is a fully assembled and tested evaluation kit designed to demonstrate the MAX77847 buck-boost regulator in Wafer-Level Packaging (WLP). It supports input voltage from 1.8V–5.5V, output voltage from 1.8V–5.2V (configurable via SEL pin or I²C), delivers up to 3A output current, and achieves 14µA quiescent current-optimized for battery-powered portable electronics.

For engineers reviewing the MAX77847EVKIT# datasheet, MAX77847EVKIT# pinout, MAX77847EVKIT# application, or MAX77847EVKIT# equivalent, this kit enables rapid validation of dynamic voltage scaling (DVS), forced PWM mode, overcurrent/overvoltage/thermal protection monitoring, and register-level configuration using the included MAXUSB_INTERFACE# and Windows GUI.

Technical Context

The MAX77847EVKIT# implements the MAX77847BEWL+ IC-a high-efficiency buck-boost converter with dual-LX outputs, 4.5A/3.6A switching current limit options, and Auto-Skip Mode operation. It integrates configurable GPI functionality (FPWM enable or DVS control) and SEL-based startup voltage selection, all accessible via hardware jumpers or I²C interface.

Hardware design includes precision sense points (VINS/PGNDS1, OUTS/PGNDS2), probe sockets for LX1/LX2/OUT1, 2.2kΩ I²C pull-ups (R4/R5), and VIO header support for external logic-level alignment. The board ships with default RSEL = 0Ω (3.3V startup) and jumper settings enabling EN, FPWM/DVS, and standalone VIN-referenced I²C pull-ups.

Key Specifications

Availability

MAX77847EVKIT# is available at Aetrix Electronics and suitable for battery-powered portable electronics, power management validation, and embedded system bring-up requiring stable component supply, traceable sourcing, and long-term evaluation kit continuity.

Supply support for MAX77847EVKIT# 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing (DSP) technologies, serving industrial, automotive, communications, and consumer markets.

The MAX77847EVKIT# belongs to Analog Devices' power management evaluation platform family, engineered specifically to accelerate development of compact, high-efficiency, low-quiescent-current buck-boost solutions for space-constrained, battery-operated devices.

FAQ

What is the primary function of the MAX77847EVKIT#?

The MAX77847EVKIT# is a fully assembled evaluation kit for the MAX77847 buck-boost regulator. It enables engineers to validate performance-including efficiency, dynamic voltage scaling, forced PWM operation, and protection features-using either standalone jumper configuration or the included MAXUSB_INTERFACE# and Windows GUI for full I²C register access. The kit ships with MAX77847BEWL+ pre-mounted.

Does the MAX77847EVKIT# require the MAXUSB_INTERFACE# to operate?

No-the MAX77847EVKIT# operates standalone using hardware jumpers (J1–J7) and the onboard potentiometer (R3) for basic output voltage setup. The MAXUSB_INTERFACE# is optional but required for sub-2.3V output configuration, real-time register read/write, protection status monitoring, and advanced features like slew rate control or current limit adjustment. Its use mandates correct VL jumper setting (1.8V) to avoid IC damage.

What output voltage options does the MAX77847EVKIT# support, and how are they configured?

The MAX77847EVKIT# supports 1.8V–5.2V output. Startup voltage (2.3V–5.2V range) is set via SEL pin resistance (RSEL); default is 3.3V using J4 shunt to R3 (0Ω). Full-range 1.8V–5.2V configuration requires the MAXUSB_INTERFACE# and GUI, which adjusts voltage in 50mV steps via I²C register writes-enabling precise DVS LOW/HIGH voltage pairs controlled by the GPI pin.

How is the MAX77847EVKIT# powered, and what are its critical measurement points?

The MAX77847EVKIT# accepts input via VIN and PGND1 terminals (1.8V–5.5V). Critical measurement points include VINS/PGNDS1 (input sense), OUTS/PGNDS2 (output sense), and dedicated probe sockets for LX1, LX2, and OUT1-designed for low-noise ripple, transient, and switching waveform analysis using pig-tail probes. Sense pins must never carry load or supply current.

What protection features can be monitored using the MAX77847EVKIT# and MAXUSB_INTERFACE# GUI?

Using the MAX77847EVKIT# with MAXUSB_INTERFACE# and GUI, engineers can monitor real-time status of overcurrent protection (OCP), overvoltage protection (OVP), and thermal shutdown via the STAT register's interrupt flags. The GUI's Interrupts section displays active fault conditions (bit = 1), enabling immediate diagnostics during stress testing or load transients without oscilloscope dependency.