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LTM4644 Datasheet

LTM4644 Datasheet

Quad DC/DC μModule (Power Module) Regulator with Configurable 4A Output Array
Part No.： LTM4644
Page： 36 Pages
Size： 2270 KB
Manufacturer： Linear Technology
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Views： 1
Update Time： 2023-12-14 15:01:13
DataSheet： Download

LTM4644 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTM4644EY#PBF Tray 170 LTM4644Y 3 77 -40°C ~ 125°C 77-Lead BGA (15mm x 9mm x 5.01mm)  
LTM4644IY#PBF Tray 170 LTM4644Y 3 77 -40°C ~ 125°C 77-Lead BGA (15mm x 9mm x 5.01mm)  
LTM4644MPY#PBF Tray 170 LTM4644Y 3 77 -55°C ~ 125°C 77-Lead BGA (15mm x 9mm x 5.01mm)  
LTM4644IY Tray 170 LTM4644Y 3 77 -40°C ~ 125°C 77-Lead BGA (15mm x 9mm x 5.01mm)  
LTM4644MPY Tray 170 LTM4644Y 3 77 -55°C ~ 125°C 77-Lead BGA (15mm x 9mm x 5.01mm)  
SPQ：Standard Pack Quantity；MSL：Moisture Sensitivity Level

LTM4644 Datasheet(PDF)

LTM4644 Datasheet(Picture)

LTM4644 Features

  • Quad Output Step-Down µModule® Regulator with 4A per Output
  • Wide Input Voltage Range: 4V to 14V
    • 2.375V to 14V with External Bias
  • 0.6V to 5.5V Output Voltage
  • 4A DC, 5A Peak Output Current Each Channel
  • Up to 5.5W Power Dissipation (TA = 60°C, 200 LFM, No Heat Sink)
  • ±1.5% Total Output Voltage Regulation
  • Current Mode Control, Fast Transient Response
  • Parallelable for Higher Output Current
  • Output Voltage Tracking
  • Internal Temperature Sensing Diode Output
  • External Frequency Synchronization
  • Overvoltage, Current and Temperature Protection
  • 9mm × 15mm × 5.01mm BGA Package

LTM4644 Applications

  • Multirail Point of Load Regulation
  • FPGAs, DSPs and ASICs Applications

LTM4644 Description

The LTM4644 is a quad DC/DC step-down µModule (micromodule) regulator with 4A per output. Outputs can be paralleled in an array for up to 16A capability. Included in the package are the switching controllers, powerFETs, inductors and support components. Operating over an input voltage range of 4V to 14V or 2.375V to 14V with an external bias supply, the LTM4644 supports an output voltage range of 0.6V to 5.5V. Its high efficiency design delivers 4A continuous (5A peak) output current per channel. Only bulk input and output capacitors are needed. 

LTM4644 Datasheet Related Parts

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