MAX20743
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MAX20743

Integrated, Step-Down Switching Regulator with PMBus

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

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file View Data Sheet (Rev.1)
Documentation View All Documentation
SIMPLIS Models MAX20743 SIMPLIS Schematic Download 403.16KB IBIS Model MAX20743 IBIS Models Download 500.5 KB
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 VDDH = 12V and VOUT = 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
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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
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file View Data Sheet (Rev.1)
Documentation View All Documentation
SIMPLIS Models MAX20743 SIMPLIS Schematic Download 403.16KB IBIS Model MAX20743 IBIS Models Download 500.5 KB
Part Models 2
1ku List Price Starting From $5.13
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MAX20743

Documentation

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Data Sheet

1

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

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Reliability Data

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UPDATED 01/12/2023
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MAX20743 Reliability Data redirect icon

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Technical Articles

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UPDATED 05/17/2023
English
A Guide to Battery Fast Charging—Part 2 redirect icon

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UPDATED 05/17/2023
Chinese
电池快速充电指南—第2部分 redirect icon

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UPDATED 05/17/2023
Japanese
バッテリの急速充電に関する設計ガイド【Part 2】 redirect icon

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UPDATED 01/25/2023
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A Guide to Battery Fast Charging—Part 1 redirect icon

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UPDATED 01/25/2023
Chinese
电池快速充电指南—第1部分 redirect icon

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UPDATED 01/25/2023
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バッテリの急速充電に関する設計ガイド【Part 1】 redirect icon

Design Note

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

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UPDATED 01/24/2019
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MAX20730、MAX20733、MAX20734、MAX20735、MAX20743、およびMAX20745のバレー電流保護の説明 redirect icon

Application Note

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

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

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Documentation

Technical Documents 7
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Data Sheet 1

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

Reliability Data 1

MAX20743 Reliability Data

Application Note 2

PMBus Protocols for Controlling and Monitoring the MAX20743/MAX20730 Switching Regulators
How to Optimize the Frequency Response of Buck Regulator ICS Externally

Design Note 1

Explaining Valley Current Protection for MAX20730, MAX20733, MAX20734, MAX20735, MAX20743, and MAX20745

Technical Articles 2

A Guide to Battery Fast Charging—Part 2
A Guide to Battery Fast Charging—Part 1

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 external-link
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  • Material Declaration external-link
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MAX20743EPL+T 15-LFCSP-4.15X8X0.95 external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

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Aug 20, 2019

- 1776A

ASSEMBLY

MAX20743EPL+

PRODUCTION

MAX20743EPL+T

PRODUCTION

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ASSEMBLY

MAX20743EPL+

PRODUCTION

MAX20743EPL+T

PRODUCTION

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pcn_1776a

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Evaluation Kits 2

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MAXPOWERTOOL002

USB-to-PMBus Interface Dongle for Power Products

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MAXPOWERTOOL002

USB-to-PMBus Interface Dongle for Power Products

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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

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UG-5981: PowerTool MAXPOWERTOOL002# Quick Start Guide Download

193.00K

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Software

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Digital Power Tool Software V2.32.27 reference design link

MAX20743EVKIT

Evaluation Kit for the MAX20743

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MAX20743EVKIT

Evaluation Kit for the MAX20743

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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
Buy Now View Details

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 +VOUT connection is on the top side, while the return (or -VOUT) 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

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MAX20743EVKIT Gerber Files Download

1.91M

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Evaluation Kits2

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MAXPOWERTOOL002

USB-to-PMBus Interface Dongle for Power Products

MAX20743EVKIT

Evaluation Kit for the MAX20743

Tools & Simulations 3

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