LTM4634

RECOMMENDED FOR NEW DESIGNS

Triple Output 5A/5A/4A Step-Down DC/DC μModule® (Power Module) Regulator

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Overview

  • 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
LTM4634
Triple Output 5A/5A/4A Step-Down DC/DC μModule® (Power Module) Regulator
24V Input to 3.3V, 5V and 12V Output Regulator 24V Input Efficiency Product Package 1
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Documentation

Data Sheet 1

User Guide 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Power System Management (PSM) & Sequencers 1
LTC2974
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTM4634

LTpowerCAD 1

Design tools for the following parts are available in LTpowerCAD:

  • LTM4634
LTspice

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.

LTpowerCAD

LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
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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Product Details

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.
DC2121A
LTM4634 Demo Board | Triple, 4.75V ≤ VIN ≤ 28V, VOUT1/VOUT2 = 0.8V to 5.5V @ 5A, VOUT3 = Up to 13.5V @ 4A
DC2121A Demo Board DC2121A Demo Board DC2121A Demo Board DC2121A Demo Board DC2121A - Schematic

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