IC manufacturers Analog Devices

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Analog Devices LT7170 | Demoboard EVAL-LT7170-AZ

20A, 16V Single-Phase Silent Switcher Step-Down Regulator with Digital Power System Management

Overview

TopologyBuck Converter
Input voltage1.5-16 V
Switching frequency925-1075 kHz
Output 11 V / 20 A

Description

Evaluation kit EVAL-LT7170-AZ is a single-phase monolithic DC/DC synchronous step-down regulator with a 2.9V or 1.5V with EXTVCC to 16V input range featuring LT®7170. The output can supply up to 20A continuous load current. The Silent Switcher® regulator structure is incorporated into the LT7170 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 LT7170 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 4 MHz), and loop compensation
  • Integrated three times programmable NVM
  • Key parameters selectable by resistor
  • VOUT set point range: 0.4 V to 5.5 V
  • VOUT accuracy: ±0.25%, 0.6 V ≤ VOUT ≤ 1.375 V
  • Differential remote VOUT sense
  • Fast transient response
  • Wide VIN supply range: down to 2.9 V or 1.5 V with EXTVCC
  • Programmable and synchronizable: 400 kHz to 4 MHz
  • 24-lead (3.5 mm × 4 mm) LQFN package

Typical applications

  • industrial systems
  • Communications
  • Data center and solid state drives