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Maxim Integrated MAX15303 PMBus Command Set User Manual

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MAX15303 PMBus Command Set User’s Guide

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Introduction

Maxim Integrated InTune™ digital power products utilize the PMBus™ command standard for configuration, control, and
telemetry.

This document lists and describes the PMBus commands implemented in the MAX15303 digital DC-DC converter. Standard
commands from the PMBus specification are not described in detail unless there are deviations from the PMBus
specification functionality. Maxim manufacturer-specific commands are fully described in this document.

References for this document are found on the PMBus and SMBus organization websites.

http://pmbus.org/specs.html

http://smbus.org/specs/

The commands in this document are presented in the following format:

Reference:

<”Standard” or “Maxim Specific”>

Lockable:

Command Code:

Format:

Data Bytes:

Units:

Transfer:

Factory Value:

Description/Notes:

PMBus specification.>

Table of Contents

Introduction ................................................................................................................................................................................. 2

On, Off, and Margin Testing-Related Commands ........................................................................................................................ 6

OPERATION .............................................................................................................................................................................. 6

ON_OFF_CONFIG ..................................................................................................................................................................... 6

VIN_ON .................................................................................................................................................................................... 7

VIN_OFF ................................................................................................................................................................................... 7

Output Voltage-Related Commands ............................................................................................................................................ 9

VOUT_MODE ........................................................................................................................................................................... 9

VOUT_COMMAND ................................................................................................................................................................... 9

VOUT_TRIM ............................................................................................................................................................................. 9

VOUT_CAL_OFFSET ................................................................................................................................................................ 10

VOUT_MAX ............................................................................................................................................................................ 10

VOUT_MARGIN_HIGH ........................................................................................................................................................... 11

VOUT_MARGIN_LOW ............................................................................................................................................................ 11

VOUT_TRANSITION_RATE ...................................................................................................................................................... 12