Analog Devices Inc./Maxim Integrated MAX77647EVKIT#

Overview

MAX77647EVKIT# from Analog Devices is an assembled and tested evaluation platform for the MAX77647 ultra-configurable SIMO PMIC, featuring a 3-output buck-boost regulator (SBB0–SBB2), one LDO, on/off controller, and I²C interface. It supports voltage programming, GPIO configuration, electronic load testing (steady-state/transient/random), and real-time ADC monitoring of output voltages and currents.

For engineers reviewing the MAX77647EVKIT# datasheet, MAX77647EVKIT# pinout, MAX77647EVKIT# application, or MAX77647EVKIT# equivalent, this kit enables rapid validation of power sequencing, load transient response, I²C register control, and battery-powered system integration - especially for wearables, IoT sensors, and primary-cell portable devices requiring high-efficiency multi-rail power management.

Technical Context

The MAX77647EVKIT# integrates the MAX77647AANP+ WLP20 IC with an FT2232HL USB-to-I²C bridge, MAX3395 level shifters, MAX44251 op-amps for current sensing, MAX5825 DAC, MAX11614 ADC, and MAX6071 voltage reference. All regulator outputs (SBB0/SBB1/SBB2/LDO) connect to onboard electronic loads via configurable jumpers (J201–J207) and sense resistors (0.1Ω for SBBx, 0.5Ω for LDO).

Hardware features include dual on-key options (push-button SW1 and slide-switch SW2), jumper-selectable logic levels (1.8V/3.3V VIO via J10), GPIO0/GPIO1 test headers with FTDI routing, and dedicated test points for all critical signals (INSBB, INLDO, SBBx, LDO, nEN, nIRQ, SCL/SDA). The GUI provides register-level access and load-control modes.

Key Specifications

Availability

MAX77647EVKIT# is available at Aetrix Electronics and suitable for wearable electronics development, battery-powered IoT sensor node prototyping, and primary-cell PMIC validation requiring stable component supply, traceable sourcing, and long-term design-in support.

Supply support for MAX77647EVKIT# 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing technologies, serving industrial, automotive, communications, and healthcare markets.

The MAX77647 product line targets ultra-low-power, space-constrained applications powered by primary cells (e.g., alkaline, Li-SOCl₂), delivering high-efficiency multi-rail power with minimal external components and flexible I²C configurability.

FAQ

What is the primary function of the MAX77647EVKIT#?

The MAX77647EVKIT# is a fully assembled evaluation kit designed to validate the MAX77647AANP+ SIMO PMIC. It enables hands-on testing of its three buck-boost regulators (SBB0–SBB2), one LDO, GPIOs, on-key control, and I²C register interface - with integrated electronic loads, ADC monitoring, and Windows GUI software for real-time configuration and measurement.

Does the MAX77647EVKIT# support transient load testing?

Yes, the MAX77647EVKIT# supports transient load testing. By removing jumpers J200–J206 and applying a 1V–3V signal to the respective MOSFET gate test points, users can inject controlled transients on SBB0, SBB1, SBB2, or LDO outputs. The onboard 0.1Ω and 0.5Ω sense resistors provide direct current monitoring via DMM or ADC.

How do I configure the MAX77647EVKIT# for 1.8V logic operation?

To configure the MAX77647EVKIT# for 1.8V logic, set jumper J10 to position 2–3. This connects VIO to the onboard 1.8V LDO (U3/U4), powering the GPIOs, I²C level shifters (U5/U6), and FT2232HL interface. Confirm operation using the GUI's "Device → Connect" and verify SBB1 output matches expected 1.8V regulation per Figure 6 in the MAX77647EVKIT# documentation.

Can the MAX77647EVKIT# evaluate both push-button and slide-switch on-key modes?

Yes, the MAX77647EVKIT# supports both on-key modes. Jumper J3 selects between SW1 (push-button, momentary) at positions 1–2 or SW2 (slide-switch, persistent) at positions 2–3. The MAX77647 internal pull-up on nEN ensures proper enable behavior in either mode, and the GUI allows register-level verification of nEN state and power-mode transitions.

What software is required to operate the MAX77647EVKIT#?

The MAX77647EVKIT# requires the official MAX77647 EV Kit GUI software, available for download from www.analog.com/MAX77647evkit under Design Resources. The GUI runs on Windows, communicates via micro-USB (J1), and provides graphical controls for voltage setting, load control (steady-state/transient/random), GPIO configuration, and ADC readings - all mapped directly to MAX77647 registers.