LTC2974 - 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement

Features
  • Order Custom Programmed Parts
  • Sequence, Trim, Margin and Supervise Four Power Supplies
  • Manage Faults, Monitor Telemetry and Create Fault Logs
  • PMBus Compliant Command Set
  • Supported by LTpowerPlayTM GUI
  • Margin or Trim Supplies to 0.25% Accuracy
  • Fast OV/UV Supervisors Per Channel
  • Fast Output Current Supervisors Per Channel
  • Coordinate Sequencing and Fault Management Across Multiple Chips
  • Automatic Fault Logging to Internal EEPROM
  • Operate Autonomously without Additional Software
  • External Temperature and Input Voltage Supervisors
  • Accurate Monitoring of Four Output Voltages, Four Output Currents, Four External Temperatures, Input Voltage and Internal Die Temperature
  • I2C/SMBus Serial Interface
  • Can Be Powered from 3.3V, or 4.5V to 15V
  • Available in 64-Lead 9mm × 9mm QFN Package
  • LTpowerPlay Configuration and Development Tool
Typical Application

Applications
  • Computers and Network Servers
  • Industrial Test and Measurement
  • High Reliability Systems
  • Medical Imaging
  • Video
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC2974CUP#PBF9x9 QFN-64C$12.64$8.85
LTC2974CUP#TRPBF9x9 QFN-64C$8.91
LTC2974IUP#PBF9x9 QFN-64I$14.54$10.18
LTC2974IUP#TRPBF9x9 QFN-64I$10.24
Demo Boards
Part NumberDescriptionPrice
DC1508B-BLTC2974, LTC2975 Socketed Programming Board [requires DC1613]$95.00
DC1962CPower System Management Demo Board (PowerStick): 14-Supply Management with LTC2977, LTC2974 & LTC3880 [Requires DC1613]$95.00
DC1962C-KITStarter Kit for Power System Management [Includes DC1962C, DC1613A]$125.00
DC1978ALTC2974 Demoboard Kit (includes DC1809 + DC1810), requires DC1613$200.00
Companion Boards
Part NumberDescriptionPrice
DC1613AUSB-to-PMBus Controller for Use with LTpowerPlay$50.00
DC2026CLinduino One Isolated USB Demo Board: An Arduino- and QuikEval-Compatible Code Development Platform$75.00
DC2294ADC2294A - PSM Linduino One Shield [requires DC2026, CA2978]$50.00
Datasheet
Application Note
Reliability Data
Product Selector Card
LT Journal
Product Info
Press Release
Linduino
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LTC2974 Footprints and Symbols
LTC2974 - DC1978 Linduino.INO File
LTC2974 - Linduino CPP File
LTC2974 - Linduino Header File