LTM4676 Datasheet | Linear Technology

Features LTM4676 Dual 13A or Single 26A µModule Regulator with Digital Power System Management Description n Dual, Fast, Analog Loops with Digital Interface for
Control and Monitoring n Wide Input Voltage Range: 4.5V to 26.5V n Output Voltage Range: 0.5V to 5.4V (4V on VOUT0) n±1% Maximum DC Output Error Over Temperature n±2.5% Current Readback Accuracy at 10A Load n400k Hz PMBus-pliant I2C Serial Interface n Integrated 16-Bit ∆Σ ADC n Constant Frequency Current Mode Control n Parallel and Current Share Multiple Modules n16 Slave Addresses; Rail/Global Addressing n16mm × 16mm × 5.01mm BGA Package Readable Data: n Input and Output Voltages, Currents, and Temperatures n Running Peak Values, Uptime, Faults and Warnings n Onboard EEPROM Fault Log Record Writable Data and Configurable Parameters: n Output Voltage, Voltage Sequencing and Margining n Digital Soft-Start/Stop Ramp n OV/UV/OT, UVLO, Frequency and Phasing Applications n System Optimization, Characterization and Data Mining in Prototype, Production and Field Environments n Tele, Data, and Storage Systems The LTM®4676 is a dual 13A or single 26A step-down µModule® (micromodule) DC/DC regulator featuring remote configurability and telemetry-monitoring of power management parameters over PMBus- an open standard I2C-based digital interface protocol . The LTM4676 is prised of fast analog control loops, precision mixedsignal circuitry, EEPROM, power MOSFETs, inductors and supporting ponents. The LTM4676’s 2-wire serial interface allows outputs to be margined, tuned and ramped up and down at programmable slew rates with sequencing delay times. Input and output currents and 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 LTpower Play™ GUI and DC1613 USB-to-PMBus...