LTM4615
Info : RECOMMENDED FOR NEW DESIGNS
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LTM4615

Triple Output, Low Voltage DC/DC μModule (Power Module) Regulator

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $20.24
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
Additional Details
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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.

Applications

  • Telecom and Networking Equipment
  • Industrial Power Systems
  • Low Noise Applications
  • FPGA, SERDES Power
Part Models 2
1ku List Price Starting From $20.24

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTM4615EV#PBF
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LTM4615IV#PBF
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Product Lifecycle

PCN

Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

Feb 28, 2020

- 20_0123

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jul 21, 2021

- 21_0159

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Ink Mark to Laser Mark Conversion for µModule

Feb 28, 2020

- 20_0123

arrow down

Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

DC1367A

LTM4615EV Demo Board | µModule Regulator, Dual 4A Plus VLDO, 2.5V ≤ VIN ≤ 5.5V, VOUT = 1.8V @ 4A, VOUT2 = 1.2V @ 2.5A, VOUT3 = 1V @ 1.5A

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DC1367A

LTM4615EV Demo Board | µModule Regulator, Dual 4A Plus VLDO, 2.5V ≤ VIN ≤ 5.5V, VOUT = 1.8V @ 4A, VOUT2 = 1.2V @ 2.5A, VOUT3 = 1V @ 1.5A

LTM4615EV Demo Board | µModule Regulator, Dual 4A Plus VLDO, 2.5V ≤ VIN ≤ 5.5V, VOUT = 1.8V @ 4A, VOUT2 = 1.2V @ 2.5A, VOUT3 = 1V @ 1.5A

Product Detail

Demonstration circuit 1367A features the LTM4615EV, a triple output μModule® regulator consisting of two switch-mode outputs and one LDO output. Each LTM4615 DC/DC converter has a separate input and enable pin. The input supply voltage is 2.5V to 5.5V and the demo board provides outputs of 1.8V @ 4A, 1.2V @ 2.5A and 1V @ 1.5A. The LTM4615's maximum load current is 4A for each switch-mode channel and 1.5A for the VLDO channel. However the DC1367A is configured with the LDO input supply connected to the VOUT2 whose maximum output current decreases accordingly. Derating is necessary for certain VIN, VOUT and thermal conditions.

Tools & Simulations

Tools & Simulations 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

Reference Designs

Reference Designs 1

DK-SI-5SGTMC7N Signal Integrity Kit

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Altera Transceiver Signal Integrity Development Kit, Stratix V GT Edition

Features and Benefits

  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications
  • Our reference designs are supported by an intuitive design tool set and IP
  • Our team can provide designs for quick prototypes that can speed time to market in the most complex applications
View Detailed Reference Design external link

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