MAX20743

PRODUCTION

MAX20743

Integrated, Step-Down Switching Regulator with PMBus

Monolithically Integrated, PMBus Enabled Step-Down Switching Regulator with High Power Density and Low Component Count

PRODUCTION

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Part Models 2

1ku List Price Starting From $5.13

Features

High-Power Density and Low Component Count
- Overall Solution Size 509mm² Including Inductor and Output Capacitors
- 90.8% Peak Efficiency with V_DDH = 12V and V_OUT = 1V
- Fast Transient Response: Supports Up to 300A/µs Load-Step Transients
Optimized Component Performance and Efficiency with Reduced Design-In Time
- PMBus-Compliant Interface for Telemetry and Power Management
- Voltage, Current and Temperature Reporting through Digital Bus
Increased Power-Supply Reliability with System and IC Self-Protection Features
- Differential Remote Sense with Open-Circuit Detection
- Hiccup Overcurrent Protection
- Programmable Thermal Shutdown

Additional Details

The MAX20743 is a fully integrated, highly efficient switching regulator with PMBus™ for applications operating from 4.5V to 16V and requiring up to 35A maximum load. This single-chip regulator provides extremely compact, high-efficiency power delivery solutions with high-precision output voltages and excellent transient response for networking, datacom and telecom equipment.

The IC offers a broad range of programmable features through either the PMBus or through a capacitor and resistor connected to a dedicated programming pin. Using this feature, the operation can be optimized for a specific application, reducing the component count and/or setting appropriate trade-offs between the regulator’s performance and system cost. Ease of programming enables using the same design for multiple applications.

The IC includes protection and telemetry features. Positive and negative cycle-by-cycle overcurrent protection and overtemperature protection ensure a rugged design. Input undervoltage lockout shuts down the device to prevent operation when the input voltage is out of specification. A status pin provides an output signal to show that the output voltage is within range and the system is regulating.

Applications

Communications
Networking
Servers and Storage equipments

View All Documentation

Ask a Question

Submit your question below and we will return the best answer from ADI’s knowledge database:

Other places you can find help

Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 2

1ku List Price Starting From $5.13

Technical Documents 5

MAX20743: Integrated, Step-Down Switching Regulator with PMBus Data Sheet (Rev.1) 03/13/2017

MAX20743 Reliability Data 01/12/2023

PMBus Protocols for Controlling and Monitoring the MAX20743/MAX20730 Switching Regulators 11/06/2017

How to Optimize the Frequency Response of Buck Regulator ICS Externally 07/01/2022

Explaining Valley Current Protection for MAX20730, MAX20733, MAX20734, MAX20735, MAX20743, and MAX20745 11/21/2017

Reference Materials 1

MAX2073x GitHub Linux Driver Source Code 09/09/2024

Design Resources 2

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX20743EPL+	15-LFCSP-4.15X8X0.95	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
MAX20743EPL+T	15-LFCSP-4.15X8X0.95	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

MAX20743EPL+
Pin/Package Drawing
15-LFCSP-4.15X8X0.95
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

MAX20743EPL+T
Pin/Package Drawing
15-LFCSP-4.15X8X0.95
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

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Part Models

Product Lifecycle

PCN

Aug 20, 2019

- 1776A

ASSEMBLY

MAX20743EPL+

PRODUCTION

MAX20743EPL+T

PRODUCTION

pdf

pcn_1776a

Filter by Model

Part Models

Product Lifecycle

PCN

Aug 20, 2019

- 1776A

ASSEMBLY

MAX20743EPL+

PRODUCTION

MAX20743EPL+T

PRODUCTION

pdf

pcn_1776a

Software 1

MAX2073x GitHub Linux Driver Source Code NEW

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MAXPOWERTOOL002

USB-to-PMBus Interface Dongle for Power Products

MAXPOWERTOOL002

USB-to-PMBus Interface Dongle for Power Products

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Product Detail

The MAXPOWERTOOL002# is an interface adapter between a host PC (IBM™-compatible) and Analog Devices' PMBus compatible eval boards for power solutions such as hot swaps, 12V multiphase controllers, and 12V point of load devices. The interface to the host PC is a standard type-A to mini-B USB cable. The interface to the eval board is through a 16-pin ribbon cable that carries the PMBus commands.

The MAXPOWERTOOL002# is intended to be used with Analog Devices’s Digital PowerTool GUI, and it works with the following devices: MAX20751, MAX20754, MAX20710, MAX20730, MAX20743, MAX20734, MAX20796, MAX20810, MAX20815, MAX16550, MAX16545B/C.

Resources

PDF

UG-5981: PowerTool MAXPOWERTOOL002# Quick Start Guide

193.00K

Software

ZIP

Digital Power Tool Software V2.32.27

MAX20743EVKIT

Evaluation Kit for the MAX20743

MAX20743EVKIT

Evaluation Kit for the MAX20743

Features and Benefits

High Efficiency and Power Density
Low Component Count
Small Solution Size
- 509mm² Including Inductor and Output Capacitors
Optimized Performance
Reduced Design-In Time
Interfaces to Maxim PMBus™ Dongle and PowerTool™ GUI
Proven PCB Layout
Fully Assembled and Tested

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Product Detail

The MAX20743 Evaluation Kit (EV kit) serves as a reference platform for evaluating the MAX20743 voltage regulator IC. This single-chip, integrated switching regulator provides an extremely compact, low-cost, highly efficient, fast, accurate, and reliable power-delivery solution for emerging low output-voltage applications up to 35A. Refer to the MAX20743 IC data sheet for more information.

The EV kit consists of a fully assembled and tested PCB implementation of the MAX20743. Jumper pins, test points, and input/output connectors are included for flexibility and ease of use in a wide range of applications.

The evaluation board is configured with an “edge strip” to allow high di/dt loading when evaluating the system. The +V_OUT connection is on the top side, while the return (or -V_OUT) is on the bottom side, directly mirroring the topside strip.

Either solder directly to the output “strip” or use the J8 terminal block to interface to a load.

Applications

Communications
Networking
Servers and Storage equipments

Resources

ZIP

MAX20743EVKIT Gerber Files

1.91M

MAXPOWERTOOL002

USB-to-PMBus Interface Dongle for Power Products

MAX20743EVKIT

Evaluation Kit for the MAX20743

EE-Sim 1

EE-Sim Power® Tools

The EE-Sim DC-DC Converter Tool uses your requirements to quickly create a complete power design including a schematic, BOM with commercially available parts, and time and frequency domain simulations. Your customized schematic can be downloaded for further analysis in the standalone EE-Sim OASIS Simulator, featuring SIMPLIS and SIMetrix SPICE engines.

Start EE-Sim Now

SIMPLIS Models 1

Simulation Model

SIMPLIS Models

MAX20743 SIMPLIS Schematic

403.16KB

IBIS Model 1

Simulation Model

IBIS Model

MAX20743 IBIS Models

500.5 KB

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MAX20743

Features

Documentation

Data Sheet 1

Reliability Data 1

Application Note 2

Design Note 1

Device Drivers 1

Aug 20, 2019

Software & Part Ecosystem

Device Drivers

Looking for Evaluation Software? You can find it here