LTM4682
RECOMMENDED FOR NEW DESIGNSLow Profile Quad 31.25A or Single 125A μModule Regulator with Digital Power System Management
- Part Models
- 3
- 1ku List Price
- Starting From $171.63
Overview
- 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
- Input and Output Voltages, Currents, and Temperatures
- Running Peak Values, Uptime, Faults and Warnings
- Onboard EEPROM Fault Log Record
- Output Voltage, Voltage Sequencing and Margining
- Digital Soft-Start/Stop Ramp, Program Analog Loop
- OV/UV/OT, UVLO, Frequency and Phasing
Readable Data
Writable Data and Configurable Parameters
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 PowerDocumentation
Data Sheet 1
User Guide 2
Application Note 1
Brochure 1
Product Selector Card 1
Webcast 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 |
|---|---|---|---|
| LTM4682EY#PBF | BGA Package 330-Lead (15mm × 22mm × 5.71mm) | ||
| LTM4682IY | BGA Package 330-Lead (15mm × 22mm × 5.71mm) | ||
| LTM4682IY#PBF | BGA Package 330-Lead (15mm × 22mm × 5.71mm) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareTools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTM4682
LTpowerCAD
Design tools for the following parts are available in LTpowerCAD:
- LTM4682
LTpowerPlay®
LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.
Open ToolLTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.
Evaluation Kits
EVAL-LTM4682-A1Z: LTM4682 | Low VOUT Quad 31.25A or Single 125A μModule Regulator with Digital Power System Management
Resources
EVAL-LTM4682-A2Z: LTM4682 | Low VOUT Quad 31.25A or Single 125A μModule Regulator with Digital Power System Management