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LTM4673 Datasheet

LTM4673 Datasheet

Quad Output μModule Regulator with Digital Power System Management
Part No.: LTM4673
Page: 124 Pages
Size: 17410 KB
Manufacturer: Linear Technology
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Update Time: 2024-12-11 21:10:16
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LTM4673 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTM4673EY#PBF Tray 90 LTM4673Y 4 361 -40°C ~ 125°C 361-Lead BGA (16mm x 16mm x 4.72mm)  
LTM4673IY#PBF Tray 90 LTM4673Y 4 361 -40°C ~ 125°C 361-Lead BGA (16mm x 16mm x 4.72mm)  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTM4673 Datasheet(PDF)

LTM4673 Datasheet(Picture)

LTM4673 Features

  • Quad Outputs, Dual 12A and Dual 5A, Step-Down μModule® Regulator with Digital Interface
  • Wide Input Voltage Range: 4.5V to 15V
  • Dual 12A DC Output From 0.6V to 3.3V
  • Dual 5A DC Output From 0.6V to 5.5V
  • ±0.5% Total Output Voltage Regulation with Servo
  • ±5% Current Readback Accuracy in 12A Channels
  • 400kHz PMBus-Compliant I2C Serial Interface
  • Integrated 16-Bit ΔΣ ADC
  • Accurate Monitoring Input and Four Output Voltages, Currents, and Temperatures
  • Digital Programmable Output Voltage Trim, Sequencing and Margining for Each Channel
  • Manage Faults and Warnings
  • Onboard EEPROM Fault Log Record
  • Dual True Differential Sensing Amplifier
  • Parallelable Output for Higher Output Current
  • Drop-In Pin Compatible with Quad Output LTM4671 Non-PSM μModule Regulator
  • 16mm × 16mm × 4.72mm BGA Package

LTM4673 Applications

  • Telecom, Networking and Industrial Equipment
  • Multi-Rail Point of Load Regulation
  • FPGAs, DSPs and ASICs Application

LTM4673 Description

The LTM4673 is a quad output, dual 12A and dual 5A, switching mode DC/DC step-down μModule (powermodule) regulator integrated with 4-channel Power System Manager used to sequence, trim (servo), margin, supervise, manage faults, provide telemetry, and create fault logs. Operating over an input voltage range of 4.5V to 15V, the LTM4673 supports an output voltage range of 0.6V to 3.3V for 12A channels and 0.6V to 5.5V for 5A channels. Only bulk input and output capacitors are needed.

The LTM4673’s 2-wire serial interface allows outputs to be precisely margined, tuned and programmable sequenced up and down. An internal 16-bit ADC monitors and supervises input and all four output voltages, currents and temperatures. Faults can be programmed for overcurrent and undercurrent, voltage and temperature threshold limits for four output channels as well as over and undervoltage for the input.

The LTM4673 is offered in a 16mm × 16mm × 4.72mm BGA package with RoHS compliant terminal finish.

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