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Analog Devices LT7171 | Demoboard EVAL-LT7171-AZ

LT7171 16V PolyPhase Silent Switcher Step-Down Regulator with Digital Power System Management 2xLT7171, 40A

Overview

TopologyBuck Converter
Input voltage2.9-16 V
Output 11 V / 40 A

Description

Evaluation kit EVAL-LT7171-AZ has two single-phase monolithic DC/DC synchronous step-down regulators with a 2.9V to 16V input range featuring LT®7171. The output can supply up to 40A continuous load current. The Silent Switcher® structure is incorporated into the LT7171 to minimize EMI and reduce PCB layout sensitivity. It also integrates digital power system management functionality, allowing for programmability and telemetry with a PMBus/I2C compliant serial interface. Refer to the LT7171 data sheet for more detailed information.

Features

  • Silent Switcher® Architecture: Enables a Compact, Efficient, Low EMI Solution
  • PMBus/I2C Serial Interface○ Telemetry Read Back includes VOUT, IOUT, VIN, Die Temperature, and Faults○ Programmable Voltage, Current Limit, Sequencing, Soft Start and Stop, Undervoltage and Overvoltage, Phase, Frequency (up to 4MHz), and Loop Compensation○ Integrated Three Times Programmable NVM○ Key Parameters Selectable by Resistor
  • VOUT Set Point Range: 0.4V to 5.5V
  • VOUT Accuracy: ±0.25%, 0.6V ≤ VOUT ≤ 1.375V
  • PolyPhase Load Sharing up to Four Devices
  • Differential Remote VOUT Sense
  • Fast Transient Response
  • Wide VIN Supply Range: Down to 2.9V or 1.5V with EXTVCC
  • Programmable and Synchronizable: 400kHz to 4MHz
  • 30-lead (3.5mm × 4mm) LQFN

Typical applications