LTM4634
Info : RECOMMENDED FOR NEW DESIGNS
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LTM4634

Triple Output 5A/5A/4A Step-Down 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 3
1ku List Price Starting From $42.32
Features
  • Three Independent High Efficiency Regulator Channels
  • IOUT1,2 = 5A, IOUT3 = 4A
  • Input Voltage Range: 4.75V to 28V
  • Independent VIN for Each Channel
  • VOUT1,2 Voltage Range: 0.8V to 5.5V
  • VOUT3 Voltage Range: 0.8V to 13.5V
  • ±1.5% Maximum Total DC Output Error
  • Current Mode Control/Fast Transient Response
  • Frequency Synchronization
  • Output Overvoltage and Overcurrent Protection
  • PolyPhase® Operation with Current Sharing
  • General Purpose Temperature Monitors
  • Soft-Start/Voltage Tracking
  • Power Good Monitors
  • SnPb or RoHS Compliant Finish
  • 15mm × 15mm × 5.01mm BGA Package
Additional Details
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The LTM4634 integrates three complete 5A/5A/4A high efficiency switching mode DC/DC converters into one small package. Switching controllers, power FETs, inductors, and most support components are included. Operating over an input voltage range of 4.75V to 28V, the LTM4634 provides three independent output voltages. VOUT1 and VOUT2 are adjustable from 0.8V to 5.5V, while VOUT3 is adjustable from 0.8V to 13.5V. Each output voltage is set by a single external resistor.

High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports frequency synchronization, multiphase parallel operation, soft-start and output voltage tracking for supply rail sequencing.

Fault protection features include overvoltage protection, overcurrent protection and temperature monitoring. The power module is offered in a space saving, thermally enhanced 15mm × 15mm × 5.01mm BGA package. The LTM4634 is available with SnPb (BGA) or RoHS compliant terminal finish.

Applications

  • Telecom, Networking and Industrial Equipment
  • High Density Point of Load Voltage Regulation
Part Models 3
1ku List Price Starting From $42.32

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Documentation

Documentation

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

PCN

Nov 20, 2023

- 23_0180

New Tray Design for BGA Package

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Nov 8, 2021

- 20_0245

Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

Sep 10, 2021

- 21_0201

LTM4633/LTM4634 Notification of Qualification of New Mold Compound and Substrate Change

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Jul 21, 2021

- 21_0159

Ink Mark to Laser Mark Conversion for µModule

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Feb 28, 2020

- 20_0123

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

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Feb 5, 2020

- 20_0127

Supplier Material Change for µModule

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Jul 25, 2019

- 19_0170

Notification of Qualification of New Mold Compound for the LTM4634 µModule Regulator  

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Nov 20, 2023

- 23_0180

arrow down

New Tray Design for BGA Package

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Nov 8, 2021

- 20_0245

arrow down

Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)

Sep 10, 2021

- 21_0201

arrow down

LTM4633/LTM4634 Notification of Qualification of New Mold Compound and Substrate Change

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Jul 21, 2021

- 21_0159

arrow down

Ink Mark to Laser Mark Conversion for µModule

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Feb 28, 2020

- 20_0123

arrow down

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

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Feb 5, 2020

- 20_0127

arrow down

Supplier Material Change for µModule

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Jul 25, 2019

- 19_0170

arrow down

Notification of Qualification of New Mold Compound for the LTM4634 µModule Regulator  

LTM4634EY#PBF

PRODUCTION

LTM4634IY

PRODUCTION

LTM4634IY#PBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

DC2121A

LTM4634 Demo Board | Triple, 4.75V ≤ VIN ≤ 28V, VOUT1/VOUT2 = 0.8V to 5.5V @ 5A, VOUT3 = Up to 13.5V @ 4A

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DC2121A

LTM4634 Demo Board | Triple, 4.75V ≤ VIN ≤ 28V, VOUT1/VOUT2 = 0.8V to 5.5V @ 5A, VOUT3 = Up to 13.5V @ 4A

LTM4634 Demo Board | Triple, 4.75V ≤ VIN ≤ 28V, VOUT1/VOUT2 = 0.8V to 5.5V @ 5A, VOUT3 = Up to 13.5V @ 4A

Product Detail

Demonstration circuit 2121A features the LTM4634, a high efficiency, triple 5A/5A/4A step-down power μModule regulator. The input voltage range is from 4.75V to 28V. The output voltage range is 0.8V to 5.5V for Channel 1 and Channel 2, 0.8V to 13.5V for Channel 3. Derating is necessary for certain VIN, VOUT, frequency and thermal conditions. The DC2121A offers access to the TK/SS pins allowing the user to program output tracking or soft-start period. The board operates in continuous conduction mode in heavy load conditions.

Tools & Simulations

Tools & Simulations 2

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.

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