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LTM4647 Datasheet

LTM4647 Datasheet

30A DC/DC Step-Down μModule Regulator
Part No.: LTM4647
Page: 34 Pages
Size: 967 KB
Manufacturer: Linear Technology
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Update Time: 2024-12-11 21:56:56
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LTM4647 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTM4647EY#PBF Tray 170 LTM4647Y 3 77 -40°C ~ 125°C 77-Lead BGA (15mm x 9mm x 5.01mm)  
LTM4647IY#PBF Tray 170 LTM4647Y 3 77 -40°C ~ 125°C 77-Lead BGA (15mm x 9mm x 5.01mm)  
LTM4647IY Tray 170 LTM4647Y 3 77 -40°C ~ 125°C 77-Lead BGA (15mm x 9mm x 5.01mm)  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTM4647 Datasheet(PDF)

LTM4647 Datasheet(Picture)

LTM4647 Features

  • 4.7V to 15V Input Voltage Range
  • 0.6V to 1.8V Output Voltage Range
  • 30A DC Output Current
  • ±1.2% Total DC Output Voltage Error (–40°C to 125°C)
  • High Reliability N + 1 Phase Redundancy Supported
  • Internal or External Control Loop Compensation
  • Differential Remote Sense Amplifier for Precision Regulation
  • Current Mode Control/Fast Transient Response
  • Multiphase Current Sharing Up to 180A
  • Built-In Temperature Monitoring
  • Selectable Pulse-Skipping, Burst Mode® Operation
  • Soft-Start/Voltage Tracking
  • Frequency Synchronization
  • Output Overvoltage Protection
  • Output Overcurrent Foldback Protection
  • 9mm × 15mm × 5.01mm BGA Package

LTM4647 Applications

  • Telecom, Networking and Industrial Equipment
  • Point of Load Regulation

LTM4647 Description

The LTM4647 is a complete 30A output switching mode step-down DC/DC μModule® (power module) regulator. Included in the package are the switching controller, power FETs, inductor and all supporting components. Operating over an input voltage range of 4.7V to 15V, the LTM4647 supports an output voltage range of 0.6V to 1.8V, set by a single external resistor. Only a few input and output capacitors are needed.

Its high efficiency design delivers 87% efficiency from 12V input to 1.0V output with 30A continuous load current. High switching frequency and a current-mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports frequency synchronization, programmable multiphase operation, N+1 phase redundancy, and output voltage tracking for supply rail sequencing.

Fault protection features include overvoltage and overcurrent protection. The power module is offered in a space saving 9mm × 15mm × 5.01mm BGA package. The LTM4647 is available with SnPb (BGA) or RoHS compliant terminal finish.

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