LTM4676A Datasheet | Linear Technology

Dual 13A or Single 26A µModule Regulator with Digital Power System Management Features nn Dual, Fast, Analog Loops with Digital Interface for
Control and Monitoring nn Wide Input Voltage Range: 4.5V to 17V nn Output Voltage Range: 0.5V to 5.5V nn ±0.5% Maximum DC Output Error Over Temperature nn ±2.5% Current Readback Accuracy at 10A Load nn 400k Hz PMBus-pliant I2C Serial Interface nn Integrated 16-Bit ∆Σ ADC nn Supports Telemetry Polling Rates Up to 125Hz nn Constant Frequency Current Mode Control nn Parallel and Current Share Multiple Modules nn All 7-Bit Slave Addresses Supported nn Rail and Global Addressing Supported nn 16mm × 16mm × 5.01mm BGA Package Readable Data: nn Input and Output Voltages, Currents, and Temperatures nn Running Peak Values, Uptime, Faults and Warnings nn Onboard EEPROM Fault Log Record Writable Data and Configurable Parameters: nn Output Voltage, Voltage Sequencing and Margining nn Digital Soft-Start/Stop Ramp nn OV/UV/OT, UVLO, Frequency and Phasing Applications nn System Optimization, Characterization and Data Mining in Prototype, Production and Field Environments Description The LTM®4676A is a dual 13A or single 26A step-down µModule® (micromodule) DC/DC regulator with 70ms turn-on time. It Features remote configurability and telemetry-monitoring of power management parameters over PMBus- an open standard I2C-based digital interface protocol . The LTM4676A is prised of fast analog control loops, precision mixed-signal circuitry, EEPROM, power MOSFETs, inductors and supporting ponents. The LTM4676A’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. 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...