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LTM4681 Datasheet Quad 31.25a Or Single 125a Umodule Regulator

Manufacturer: Analog Devices

Overview: LTM4681 Quad 31.25A or Single 125A µModule Regulator with Digital Power System.

General Description

The LTM®4681 is a quad 31.25A or single 125A stepdown µModule® (power module) DC/DC regulator featuring remote configurability and telemetry-monitoring of power management parameters over PMBus.

The LTM4681 is comprised of digitally programmable analog control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors and supporting components.

The LTM4681’s 2-wire serial interface allows outputs to be margined, tuned and ramped up and down at programmable slew rates with sequencing delay times.

Key Features

  • n Quad Digitally Adjustable Analog Loops with Digital Interface for Control and Monitoring n Wide Input Voltage Range: 4.5V to 16V n Output Voltage Range: 0.5V to 3.3V n ±0.5% Maximum DC Output Error Over Temperature n ±4% Current Readback Accuracy: 0°C to 125°C n Integrated Input Current Sense Amplifier n 400kHz PMBus-Compliant I2C Serial Interface n Supports Telemetry Polling Rates Up to 125Hz n Integrated 16-Bit ∆Σ ADC n Parallel and Current Share Multiple Modules n 15mm × 22mm × 8.17mm BGA P.

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LTM4681 Distributor