Analog Devices LTM4680 | Demoboard DC2844A

Description

Demonstration circuit 2844A is a dual-output, high efficiency, high density, µModule® regulator with 4.5V to 16V input range. Each output can supply 30A maximum load current. The demo board has a LTM®4680 µModule regulator, which is a dual 30A or single 60A step-down regulator with digital power system management. Please see LTM4680 data sheet for more detailed information.DC2844A powers up to default settings and produces 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 ADI’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 EEPROM, view telemetry of voltage, current, temperature and fault status.

Features

• Dual 30A or Single 60A Digitally Adjustable AnalogLoops with Digital Interface for Control and Monitoring
• Wide Input Voltage Range: 4.5V to 16V
• Output Voltage Range: 0.5V to 3.3V
• 90% Full Load Efficiency from 12VIN to 1VOUT at 60A
• ±0.5% Maximum DC Output Error Over Temperature
• ±2.5% Current Readback Accuracy (25°C to 125°C)
• Integrated Input Current Sense Amplifier
• 400kHz PMBus-Compliant I2C Serial Interface
• Supports Telemetry Polling Rates Up to 125Hz
• Constant Frequency Current Mode Control
• Parallel and Current Share Multiple Modules
• Pin Compatible with LTM4678
• 16mm × 16mm × 7.82mm 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/ Soft-Stop Ramp, Program Analog Loop
• OV/UV/OT, UVLO, Frequency and Phasing

Typical applications

• System Optimization, Characterization and Data Mining in Prototype, Production and Field Environments

More information

• Datasheet