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  2. Power Management
  3. Switching Regulators
  4. Step-Down (Buck) Regulators
  5. Multiple Output Buck Regulators
  6. LTM4619


Features and Benefits

  • Complete Standalone Power Supply
  • Wide Input Voltage Range: 4.5V to 26.5V (EXTVCC Available for VIN ≤ 5.5V)
  • Dual 180° Out-of-Phase Outputs with 4A DC Typical, 5A Peak Output Current for Each
  • Dual Outputs with 0.8V to 5V Range
  • Output Voltage Tracking
  • ±1.5% Maximum Total DC Output Error
  • Current Mode Control/Fast Transient Response
  • Power Good
  • Phase-Lockable Fixed Frequency 250kHz to 780kHz
  • On Board Frequency Synchronization
  • Parallel Current Sharing
  • Selectable Burst Mode® Operation
  • Output Overvoltage Protection
  • 15mm × 15mm × 2.82mm LGA Package

Product Details

The LTM4619 is a complete dual 4A or single 8A stepdown DC/DC μModule® (power module) regulator. Included in the package are the switching controller, power FETs, inductor, and all support components. Operating over input voltage ranges of 4.5V to 26.5V, the LTM4619 supports two outputs with voltage ranges of 0.8V to 5V, each set by a single external resistor. Its high efficiency design delivers 4A continuous current (5A peak) for each output.

High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The two outputs are interleaved with 180° phase to minimize the ripple noise and reduce the I/O capacitors. The device supports frequency synchronization and output voltage tracking for supply rail sequencing. Burst Mode operation or pulseskipping mode can be selected for light load operations.

Fault protection features include overvoltage protection, overcurrent protection and foldback current limit for short-circuit protection.

The low profile package (2.82mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. The power module is offered in a 15mm × 15mm × 2.82mm LGA package. The LTM4619 is RoHS compliant with Pb-free finish.


  • Telecom and Networking Equipment
  • Servers
  • Storage Cards
  • ATCA Cards
  • Industrial Equipment
  • Point of Load Regulation

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Evaluation Kits (1)

Tools & Simulations


LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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Product Recommendations

LTM4619 Companion Parts

Recommended Related Parts

Recommended Suggested Oscillator

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LTM4619EV#PBF Material Declaration Reliability Data 144-Lead LGA (15mm x 15mm x 2.82mm)
LTM4619IV#PBF Material Declaration Reliability Data 144-Lead LGA (15mm x 15mm x 2.82mm)
Wafer Fabrication Data R504 Reliability Data

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.