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MAX20751：Multiphase Master with PMBus Interface and Internal Buck Converter

The MAX20751 PMBus™-compliant multiphase master IC, with extensive status and parameter monitoring, is capable of driving up to four smart-slave integrated power devices. Utilizing Maxim’s smart-slave ICs, the device provides a high-density and flexible solution that can be tailored to a range of power loads used in communication equipment. Proprietary-coupled inductors, recommended to reduce the effective inductor value without excessive ripple current, results in improved transient response and reduction in the number of output capacitors required. The device incorporates current reporting, temperature monitoring, fault detection, and PMBus support. Overcurrent and overtemperature faults are detected by the individual smart slaves and faults communicated through the master IC. The highest junction temperature is reported, both before and after smart-slave regulation. The device features an integrated switching regulator that can optionally be used to supply the VDD rail for the master controller and smart-slave devices to reduce the power-rail requirements and simplify the regulator design.

关键特性 Increased Power Density with Fewer External Components Needed Scalable, Multiphase Solution Compatibility with Coupled Inductors Enables Fast Transient Response and Reduced COUT Integrated Internal Switching Regulator to Power Smart Slaves Optimized Component Performance and Efficiency with Reduced Design-In Time PMBus-Compliant Interface for Telemetry and Power Management Field-Programmable Memory to Allow Storage of Desired Configuration Parameters Fault Logging Comprehensive System and IC Self-Protection Features Promote Increased Power-Supply Reliability Overcurrent and Overtemperature Boost Voltage UVLO VX Short to Ground or VDDH Detection Phase-Current Steering for Thermal Balancing 36-Pin (6mm × 6mm) QFN Package

MAX20751: Typical Operating Circuit 应用

数据手册DataSheet

关键参数

开发工具

• MAX20751S1VKIT

技术资料

• KCU1250 MGT Module Quick Start Guide
• PowerTool MAXPOWERTOOL002# Quick Start Guide
• MAX20751 PMBus Implementation Guide
• EE-SIM Design and Simulation Environment User Guide

质量和环境数据

• MAX20751.pdf

相关产品

• VT1697SB：Smart Slave IC with Integrated Current and Temperature Sensors

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