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LTM4615 Datasheet

LTM4615 Datasheet

Triple Output, Low Voltage DC/DC μModule (Power Module) Regulator
Part No.: LTM4615
Page: 24 Pages
Size: 520 KB
Manufacturer: Linear Technology
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Views: 1
Update Time: 2024-12-08 14:57:54
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LTM4615 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LTM4615EV#PBF Tray 119 LTM4615V 3 144 -40°C ~ 125°C 144-Lead (15mm × 15mm × 2.82mm) LGA  
LTM4615IV#PBF Tray 119 LTM4615V 3 144 -40°C ~ 125°C 144-Lead (15mm × 15mm × 2.82mm) LGA  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LTM4615 Datasheet(PDF)

LTM4615 Datasheet(Picture)

LTM4615 Features

  • Dual 4A Output Power Supply with 1.5A VLDO™
  • Short-Circuit and Overtemperature Protection
  • Power Good Indicators
Switching Regulators Section—Current Mode Control
  • Input Voltage Range: 2.375V to 5.5V
  • 4A DC Typical, 5A Peak Output Current Each
  • 0.8V Up to 5V Output Each, Parallelable
  • ±2% Total DC Output Error
  • Output Voltage Tracking
  • Up to 95% Efficiency
  • Programmable Soft-Start
VLDO Section
  • VLDO, 1.14V to 3.5V Input Range
  • VLDO, 0.4V to 2.6V, 1.5A Output
  • VLDO, 40dB Supply Rejection at fSW
  • ±1% Total DC Output Error
  • Small and Very Low Profile Package:15mm × 15mm × 2.82mm

LTM4615 Applications

  • Telecom and Networking Equipment
  • Industrial Power Systems
  • Low Noise Applications
  • FPGA, SERDES Power

LTM4615 Description

The LTM4615 is a complete 4A dual output switching mode DC/DC power supply plus an additional 1.5A VLDO (very low dropout) linear regulator. Included in the package are the switching controllers, power FETs, inductors, a 1.5A regulator and all support components. The dual 4A DC/DC converters operate over an input voltage range of 2.375V to 5.5V, and the VLDO operates from a 1.14V to 3.5V input. The LTM4615 supports output voltages ranging from 0.8V to 5V for the DC/DC converters, and 0.4V to 2.6V for the VLDO. The three regulator output voltages are set by a single resistor for each output. Only bulk input and output capacitors are needed to complete the design.

The low profile package (2.82mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. High switching frequency and a current mode architecture enables a very fast transient response to line and load changes without sacrificing stability. The device supports output voltage tracking for supply rail sequencing.

Additional features include overvoltage protection, foldback overcurrent protection, thermal shutdown and programmable soft-start. The power module is offered in a space saving and thermally enhanced 15mm × 15mm × 2.82mm LGA package. The LTM4615 is Pb-free and RoHS compliant.

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