Skip to main content
Design DocumentAnalog

Analog Devices MAX20796 PMBus Command Set User Guide

This user guide details the PMBus command set for the MAX20796 step-down switching regulator, covering standard and manufacturer-specific commands for control and monitoring.

View design document

Overview

This document (UG2170) provides a comprehensive list and description of the Power Management Bus (PMBus) commands implemented in the MAX20796 integrated, two-phase, single-supply, step-down switching regulator. It outlines standard PMBus specification commands and provides detailed documentation for Analog Devices manufacturer-specific commands. Key functional areas covered include output voltage regulation, switching frequency configuration, sequencing (rise/fall times), fault management (overvoltage, undervoltage, overcurrent, and overtemperature), and status reporting. Additionally, the guide describes telemetry commands for real-time monitoring of input/output voltage, current, and temperature, as well as security, device identification, and nonvolatile memory storage operations.

Use Cases

  • Configuring output voltage parameters and margining for the MAX20796
  • Monitoring real-time power system telemetry such as READ_VOUT and READ_IOUT
  • Setting overcurrent and overtemperature fault thresholds and responses
  • Managing device identification and nonvolatile memory storage via PMBus

Topics

MAX20796
MAX20796ETMA1
Analog Devices
PMBus
switching regulator
step-down converter
telemetry
power management
command set
fault response

Referenced Parts

MAX20796

Analog Devices

MAX20796 integrated step-down switching regulator

MAX20796ETMA1

Analog Devices

Device root part number. R Block ASCII string “MAX20796 ETMA1”