LTM4682

RECOMMENDED FOR NEW DESIGNS

LTM4682

Low Profile Quad 31.25A or Single 125A μModule Regulator with Digital Power System Management

RECOMMENDED FOR NEW DESIGNS

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Part Models 3

1ku List Price Starting From $135.67

Features

Quad Digitally Adjustable Analog Loops with Digital Interface for Control and Monitoring
Wide Input Voltage Range: 4.5V to 16V
Output Voltage Range: 0.7V to 1.35V
±0.5% DC Output Accuracy at 0.75V
±4.5% Current Readback Accuracy: 0°C to 125°C
Optimized for Low Output Voltage Ranges
400kHz PMBus-Compliant I²C Serial Interface
Supports Telemetry Polling Rates Up to 125Hz
Integrated 16-Bit ΔΣ ADC
Parallel and Current Share Multiple Modules
15mm × 22mm × 5.71mm BGA Package

Readable Data

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

Writable Data and Configurable Parameters

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

Additional Details

The LTM^®4682 is a quad 31.25A or single 125A step-down power μModule^® (power micromodule) DC/DC regulator featuring remote configurability and telemetry monitoring of power management parameters over PMBus. The LTM4682 is comprised of digitally programmable analog control loops, and is optimized for higher bandwidth and transient response.

The LTM4682’s 2-wire serial interface allows outputs to be margined, tuned, and ramped up and down at programmable slew rates with sequencing delay times. True input current sense, output currents, output voltages, output power, temperatures, uptime, and peak values are readable. Custom configuration of the EEPROM contents is not required. At start-up, output voltages, switching frequency, and channel phase angle assignments can be set by pin-strapping resistors. The LTpowerPlay^® graphical user interface (GUI), the DC1613A USB-to-PMBus converter, and evaluation kits are available.

The LTM4682 is offered in a 15mm × 22mm × 5.71mm BGA package available with an SnPb or a RoHS-compliant terminal finish.

APPLICATIONS

Multi-Rail Processor Power, Configurable Core Power

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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 3

1ku List Price Starting From $135.67

Documentation

Technical Documents 1

LTM4682: Low Profile Quad 31.25A or Single 125A μModule Regulator with Digital Power System Management Data Sheet (Rev.0) 08/05/2024

Reference Materials 1

Component on Package uModule DC/DC Regulators - Less Heat, More Power 06/26/2024

Design Resources 3

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
LTM4682EY#PBF	330-Lead BGA (22mm x 15mm x 8.17mm)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTM4682IY	330-Lead BGA (22mm x 15mm x 8.17mm)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTM4682IY#PBF	330-Lead BGA (22mm x 15mm x 8.17mm)	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

LTM4682EY#PBF
Pin/Package Drawing
330-Lead BGA (22mm x 15mm x 8.17mm)
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LTM4682IY
Pin/Package Drawing
330-Lead BGA (22mm x 15mm x 8.17mm)
Documentation

HTML Material Declaration

HTML Reliablity Data

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

LTM4682IY#PBF
Pin/Package Drawing
330-Lead BGA (22mm x 15mm x 8.17mm)
Documentation

HTML Material Declaration

HTML Reliablity Data

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

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.