LTM4686-1

RECOMMENDED FOR NEW DESIGNS

LTM4686-1

Ultrathin Dual 10A or Single 20A μModule Regulator with Digital Power System Management

RECOMMENDED FOR NEW DESIGNS

Part Details

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Part Models 2

1ku List Price Starting From $29.83

Features

Dual, Fast, Analog Loops with Digital Interface for Control and Monitoring
Wide Input Voltage Range: 4.5V to 17V Standalone, 2.375V to 17V with Aux 5V Bias
Output Voltage Range: 0.5V to 3.6V
±0.5% Maximum DC Output Error Over Temperature
10A DC Typical, 12A Peak Output Current, per Channel
±5% Current Readback Accuracy at 10A Load
400kHz PMBus-Compliant I²C Serial Interface
Integrated 16-Bit ∆Σ ADC
Supports Telemetry Polling Rates Up to 125Hz
Constant Frequency Current Mode Control
Parallel and Current Share Multiple Modules
All 7-Bit Slave Addresses Supported
Drop-In Pin-Compatible to Dual 9A LTM4675 and Dual 13A LTM4676A and Dual 18A LTM4677
16mm × 11.9mm × 1.82mm LGA Package

Readable Data:

Input and Output Voltages, Currents, and Temperatures
Running Peak Values, Uptime, Faults and Warnings
Onboard EEPROM Fault Log Record with ECC

Writable Data and Configurable Parameters:

Output Voltage, Voltage Sequencing and Margining
Digital Soft-Start/Stop Ramp
OV/UV/OT, UVLO, Frequency and Phasing

Additional Details

The LTM4686 is a dual 10A (12A Peak) or single 20A (24A Peak) step-down µModule^® (micromodule) DC/DC regulator with 39ms turn-on time. It features remote configurability and telemetry-monitoring of power management parameters over PMBus—an open standard I²C-based digital interface protocol . The LTM4686 is comprised of fast analog control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors and supporting components.

The LTM4686’s 2-wire serial interface enables voltage margining and sequencing, and telemetry readback of currents, voltages, power, temperature, uptime and peak values. Pin-strap resistors configure start-up settings. The LTpowerPlay^™ GUI, DC1613 USB-to-PMBus converter, DC2086 programming adapter and demo kits are available. Applications running from 5V_IN or supplying 5V_AUX to SV_IN should use LTM4686-1. Otherwise, use LTM4686.

Pb-free and RoHS compliant, the LTM4686 is available in a 16mm × 11.9mm × 1.82mm LGA package.

Applications

System Optimization in Prototype and Production

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 $29.83

Documentation

Technical Documents 2

LTM4686/LTM4686-1: Ultrathin Dual 10A or Single 20A µModule Regulator with Digital Power System Management Data Sheet (Rev.C) 07/30/2018

μModule Design and Manufacturing Resources 01/30/2018

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
LTM4686EV-1#PBF	108-Lead LGA (16mm x 11.9mm x 1.82mm)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTM4686IV-1#PBF	108-Lead LGA (16mm x 11.9mm x 1.82mm)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LTM4686EV-1#PBF
Pin/Package Drawing
108-Lead LGA (16mm x 11.9mm x 1.82mm)
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LTM4686IV-1#PBF
Pin/Package Drawing
108-Lead LGA (16mm x 11.9mm x 1.82mm)
Documentation

HTML Material Declaration

HTML Reliablity Data

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

PCN/PDN Information

Filter by Model

Part Models

Product Lifecycle

PCN

Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

LTM4686EV-1#PBF

PRODUCTION

LTM4686IV-1#PBF

PRODUCTION

pdf

PCN21_0159_Form

xls

Material_Report

xlsm

Delta Qualification Matrix

Feb 28, 2020

- 20_0123

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

LTM4686EV-1#PBF

PRODUCTION

LTM4686IV-1#PBF

PRODUCTION

pdf

PCN20_0123_Form

xls

Material_Report

Test Correlation Report

Other

pdf

Qualification Results Summary

Filter by Model

Part Models

Product Lifecycle

PCN

Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

LTM4686EV-1#PBF

PRODUCTION

LTM4686IV-1#PBF

PRODUCTION

pdf

PCN21_0159_Form

xls

Material_Report

xlsm

Delta Qualification Matrix

Feb 28, 2020

- 20_0123

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

LTM4686EV-1#PBF

PRODUCTION

LTM4686IV-1#PBF

PRODUCTION

pdf

PCN20_0123_Form

xls

Material_Report

Test Correlation Report

Other

pdf

Qualification Results Summary

Software & Part Ecosystem

Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTpowerCAD 2

LTpowerCAD^® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

To open the project file for this circuit:

Step 1: Download and install LTpowerCAD on your computer.

Step 2: Click on the link(s) in the section below to download part-specific project files.

Step 3: If the project file doesn't run, right-click the link and select "Save Target As." Then start the LTpowerCAD tool and open the project file by selecing "Open Project" from the "File" menu.

LTpowerCAD download and documentation

Simulation Model

LTpowerCAD

LTM4686-1 Project - 12Vin to 1Vout/20A, 500kHz

LTpowerCAD

LTM4686-1 Project - 2.375V-17Vin to 1Vout1/10A, 1.8Vout2/10A, 500kHz

Reference Designs

Intel Agilex 7 FPGA F-series Development Kit (P-Tile and E-Tile) Power Tree

agilex7-p-tile-e-tile

Altera FPGA

agilex7-p-tile-e-tile

Circuits from the lab

Altera FPGA

Features and Benefits

Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
Our reference designs are supported by an intuitive design tool set and IP.
ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. Our team can provide samples and/or evaluation boards for quick validation that can speed time to market in the most complex applications.
For a complete list power designs and use cases, please contact your local FAE.

View Detailed Reference Design