LTM4686
Info : RECOMMENDED FOR NEW DESIGNS
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LTM4686

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

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $29.83
Features
  • Dual, Fast, Analog Loops with Digital Interface for Control and Monitoring
  • 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
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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 5VIN or supplying 5VAUX to SVIN 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
Part Models 2
1ku List Price Starting From $29.83

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTM4686EV#PBF
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LTM4686IV#PBF
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Part Models

Product Lifecycle

PCN

Aug 20, 2021

- 20_0311

Supplier Material Change for µModule

Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

Feb 28, 2020

- 20_0123

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

Feb 5, 2020

- 20_0127

Supplier Material Change for µModule

Jan 22, 2020

- 19_0186

LTM4686 - New Mold Compound for the LTM4686 µModule Regulator

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Aug 20, 2021

- 20_0311

arrow down

Supplier Material Change for µModule

Jul 21, 2021

- 21_0159

arrow down

Ink Mark to Laser Mark Conversion for µModule

Feb 28, 2020

- 20_0123

arrow down

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

Feb 5, 2020

- 20_0127

arrow down

Supplier Material Change for µModule

Jan 22, 2020

- 19_0186

arrow down

LTM4686 - New Mold Compound for the LTM4686 µModule Regulator

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

DC2722A

LTM4686 Ultrathin Dual 10A or Single 20A µModule Regulator With Digital Power System Management

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DC2722A

LTM4686 Ultrathin Dual 10A or Single 20A µModule Regulator With Digital Power System Management

LTM4686 Ultrathin Dual 10A or Single 20A µModule Regulator With Digital Power System Management

Product Detail

Demonstration circuit 2722A is a dual-output, high efficiency, high density, µModule regulator with 2.7V to 17V input range. Each output can supply 10A maximum load current. The demo board has a LTM4686 µModule regulator, which is a dual 10A or single 20A step-down regulator with digital power system management. Please see LTM4686 data sheet for more detailed information.

DC2722A powers up to default settings and produce power based on configuration resistors without the need for any serial bus communication. This allows easy evaluation of the DC/DC converter. To fully explore the extensive power system management features of the part, download the GUI software LTpowerPlay™ onto your PC and use LTC’s I2C/SMBus/PMBus dongle DC1613A to connect to the board. LTpowerPlay allows the user to reconfigure the part on the fly and store the configuration in EPROM, view telemetry of voltage, current, temperature and fault status.

Tools & Simulations

Tools & Simulations 2

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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