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LTM®4644 Quad DC/DC μModule® Regulator

By Linear Technology 59

LTM®4644 Quad DC/DC μModule® Regulator

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

Fault protection features include overvoltage, overcurrent and overtemperature protection. The LTM4644 is offered in 9 mm × 15 mm × 5.01 mm BGA package. The LTM4644 is available with SnPb (BGA) or RoHS-compliant terminal finish.

Extra solutions: LTC4644

Video: LTM4644 – Quad DC/DC µ Module Regulator with Configurable 4 A Output Array

Features:
  • Quad output step-down μModule regulator with 4 A per output
  • Wide input voltage range: 4 V to 14 V
  • 2.375 V to 14 V with external bias
  • 0.6 V to 5.5 V output-voltage
  • 4 A DC, 5 A peak output current each channel
  • Up to 5.5 W 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
  • 9 mm × 15 mm × 5.01 mm BGA package

Applications:
  • Multirail point-of-load regulation
  • FPGAs, DSPs, and ASICs applications

नयाँ सामानहरू:

LTM4644EY#PBFLTM4644IY#PBFLTM4644IYDC1900A

ट्यागहरू:

Power ManagementSemiconductors & Dev ToolsLinear Technology

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