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LTM4633: Triple 10A Step-Down DC/DC μModule (Power Module) Regulator Data Sheet10/16/2013PDF514K
Overview
Features and Benefits
- Three Independent 10A DC Output Current Regulator Channels
- Input Voltage Range: 4.7V to 16V
- 2.375V to 16V with External 5V Bias
- VOUT1,2 Voltage Range: 0.8V to 1.8V
- VOUT3 Voltage Range: 0.8V to 5.5V
- ±1.5% Maximum Total DC Output Error
- Current Mode Control/Fast Transient Response
- Frequency Synchronization
- Output Overvoltage and Overcurrent Protection
- Multiphase Operation with Current Sharing on VOUT1 and VOUT2
- General Purpose Temperature Monitors
- Soft-Start/Voltage Tracking
- Power Good Monitors
- 15mm × 15mm × 5.01mm BGA Package
Product Details
The LTM4633 μModule® (power module) regulator combines three complete 10A switching mode DC/DC converters into one small package. Included in the package are the switching controllers, power FETs, inductors, and most support components. The LTM4633’s three regulators operate from 4.7V to 16V input rail(s) or 2.375V to 16V with an external 5V bias. The VOUT1 and VOUT2 output range is 0.8V to 1.8V, while the VOUT3 output range is 0.8V to 5.5V. Each output is set by one 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 of VOUT1 and VOUT2, 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 LTM4633 is RoHS compliant with Pb-free finish.
Applications
- Telecom, Networking and Industrial Equipment
- High Density Point of Load Regulation
Product Categories
Product Lifecycle
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)
Documentation & Resources
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R504 Reliability Data3/26/2018PDF347 K
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DC1905A - Demo Manual8/15/2013PDF1M
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μModule Power Products Simplify Power4/11/2018PDF9 M
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SnPb (Tin-Lead) BGA Packages μModule Power Products7/13/2017PDF1M
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μModule Power Products4/4/2017PDF10M
Tools & Simulations
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.
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.

Models for the following parts are available in LTspice:
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.
To open the project file for this circuit:
Step 1: Download and install LTpowerCAD on your computer.
Step 2: Click on the link(s) in the section below to download part-specific project files.
Step 3: If the project file doesn't run, right-click the link and select "Save Target As." Then start the LTpowerCAD tool and open the project file by selecing "Open Project" from the "File" menu.

Design tools for the following parts are available in LTpowerCAD:
Product Recommendations
LTM4633 Companion Parts
Recommended Related Parts
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 |
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LTM4633EY#PBF | Material Declaration | Reliability Data | 144-Lead BGA (15mm x 15mm x 5.01mm) | |
LTM4633IY | Material Declaration | Reliability Data | 144-Lead BGA (15mm x 15mm x 5.01mm) | |
LTM4633IY#PBF | Material Declaration | Reliability Data | 144-Lead BGA (15mm x 15mm x 5.01mm) | |
LTM4633MPY | Material Declaration | Reliability Data | 144-Lead BGA (15mm x 15mm x 5.01mm) | |
LTM4633MPY#PBF | Material Declaration | Reliability Data | 144-Lead BGA (15mm x 15mm x 5.01mm) | |
Wafer Fabrication Data | R504 Reliability Data |
PCN-PDN Information
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Support & Discussions
LTM4633 Discussions
Sample & Buy
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List Pricing
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Lead Times
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Sampling
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