Analog Devices / Maxim Integrated MAX77511 Evaluation Kit (MAX77711AEVKIT)

Analog Devices MAX77511 Evaluation Kit (MAX77711AEVKIT) is a fully assembled and tested demonstration platform for the MAX77711 Quad-Phase Buck Converter. The Evaluation Kit can also be used to demonstrate the MAX77511. The  MAX77711 and MAX77511 are four-phase, 3A/phase, configurable step-down buck regulators for 1s/2s Li+ battery inputs. Both ICs are the same, except the MAX77711 integrates a 300mA PMOS low-dropout linear voltage regulator (LDO). Analog Devices MAX77511 Evaluation Kit provides a reference design for a step-down voltage regulator circuit using the IC to easily evaluate each feature. The circuit is capable of 2.3V to 10V input, 3A/phase continuous load, and output voltage adjustable between 0.25V and 5.2V. 

This kit supports the evaluation of each converter phase (Φ) configuration:

  • 4Φ (single 12A output)
  • 3Φ + 1Φ (9A output + 3A output)
  • 2Φ + 2Φ (6A output + 6A output)
  • 2Φ + 1Φ + 1Φ (6A output + 3A output + 3A output)
  • 1Φ + 1Φ + 1Φ + 1Φ (four 3A outputs)

Three onboard transient loads allow users to exercise the full capability of the buck regulator or LDO. Microsoft Windows-based software provides a friendly graphical user interface (GUI) and a detailed register-based interface to exercise all the features of the IC.

Features

  • Proven PCB reference design and layout
  • Fully assembled and tested
  • Easy evaluation of all phase configurations
    • 0Ω resistors quickly create multiphase configurations
    • Jumpers and test points for ENSEQ, GPIOs, nRSTIO, and PHCFG
  • GUI drives I2C interface for optional software control
  • Inputs separatable with 0Ω resistors for prototyping
  • USB to I2C converter allows easy communication with Microsoft Windows PC
    • Windows software GUI controls registers
    • Level translator allows for adjusting I2C bus voltage from 1.8V to 3.3V
  • On-board transient load emulates system loading
    • Covers full 12A load range (with 4Φ configuration)
    • Control using an external function generator

Board Layout

Analog Devices / Maxim Integrated MAX77511 Evaluation Kit (MAX77711AEVKIT)

Analog Devices / Maxim Integrated MAX77511 Evaluation Kit (MAX77711AEVKIT)