LTM4630
Dual 18A or Single 36A DC/DC μModule (Power Module) Regulator
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Overview
Features and Benefits
- Dual 18A or Single 36A Output
- Wide Input Voltage Range: 4.5V to 15V
- Output Voltage Range: 0.6V to 1.8V
- ±1.5% Maximum Total DC Output Error Over Line, Load and Temperature
- Differential Remote Sense Amplifier
- Current Mode Control/Fast Transient Response
- Adjustable Switching Frequency
- Overcurrent Foldback Protection
- Multiphase Parallel Current Sharing with Multiple LTM4630s Up to 144A
- Frequency Synchronization
- Internal Temperature Monitor
- Pin Compatible with the LTM4620 and LTM4620A (Dual 13A, Single 26A) and LTM4628 (Dual 8A, Single 16A)
- Selectable Burst Mode® Operation
- Soft-Start/Voltage Tracking
- Output Overvoltage Protection
- 16mm × 16mm × 4.41mm LGA and 16mm × 16mm × 5.01mm BGA Packages
Product Details
The LTM4630 is a dual 18A or single 36A output switching mode step-down DC/DC μModule® (power module) regulator. Included in the package are the switching controllers, power FETs, inductors, and all supporting components. Operating from an input voltage range of 4.5V to 15V, the LTM4630 supports two outputs each with an output voltage range of 0.6V to 1.8V, each set by a single external resistor. Its high efficiency design delivers up to 18A continuous current for each output. Only a few input and output capacitors are needed. The LTM4630 is pin compatible with the LTM4620 and LTM4620A (dual 13A, single 26A) and the LTM4628 (dual 8A, single 16A).
The device supports frequency synchronization, multiphase operation, Burst Mode operation and output voltage tracking for supply rail sequencing and has an onboard temperature diode for device temperature monitoring. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability.
Fault protection features include overvoltage and overcurrent protection. The LTM4630 is offered in 16mm × 16mm × 4.41mm LGA and 16mm × 16mm × 5.01mm BGA packages. The LTM4630 is ROHS compliant.
| Features | Vout | |
| LTM4630 | 0.6V to 1.8V | |
| LTM4630-1 | 0.8% DC and 3% Transient Accuracy | 0.6V to 1.8V |
| LTM4630A | Higher Light Load Efficiency | 0.6V to 5.3V |
Applications
- Telecom and Networking Equipment
- Storage and ATCA Cards
- Industrial Equipment
Product Categories
Markets and Technologies
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 (6)
Documentation & Resources
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R504 Reliability Data3/26/2018PDF347 K
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DC2106B-B - Demo Manual7/28/2015PDF1M
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DC2081A-A - Demo Manual2/6/2015PDF798K
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DC1892A - Demo Manual2/4/2015PDF1M
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DC2007A-B - Demo Manual1/13/2014PDF1M
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DC2007A-C - Demo Manual12/6/2013PDF1M
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DC2007A-A - Demo Manual11/7/2013PDF1M
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SnPb (Tin-Lead) BGA Packages μModule Power Products7/13/2017PDF1M
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μModule Power Products4/4/2017PDF10M
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Making Accurate Temperature Measurements with Devices with Different Ideality Factors4/1/2017 LT Journal
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Ultrathin Triple Output µModule Regulator for DDR, QDR and QDR-IV SRAM Fits 0.5cm2 Area and Backside of PCB8/1/2016 LT Journal
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High Efficiency 6-Phase 80A Step-Down Regulator using LTM4630 (x3)7/31/2014
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.
LTspice Simulations
Models for the following parts are available in LTspice:
LTM4630
LTM4630-1
LTM4630A
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.
LTpowerCAD Project Files
Design tools for the following parts are available in LTpowerCAD:
LTM4630
LTM4630-1
LTM4630A
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 |
|---|---|---|---|---|
| LTM4630EV#PBF | Material Declaration | Reliability Data | 144-Lead LGA (16mm x 16mm x 4.41mm) | |
| LTM4630EY#PBF | Material Declaration | Reliability Data | 144-Lead BGA (16mm x 16mm x 5.01mm) | |
| LTM4630IV#PBF | Material Declaration | Reliability Data | 144-Lead LGA (16mm x 16mm x 4.41mm) | |
| LTM4630IY | Material Declaration | Reliability Data | 144-Lead BGA (16mm x 16mm x 5.01mm) | |
| LTM4630IY#PBF | Material Declaration | Reliability Data | 144-Lead BGA (16mm x 16mm x 5.01mm) | |
| Wafer Fabrication Data | R504 Reliability Data |
PCN-PDN Information
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Sample & Buy
Ordering FAQs
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Buy Now Pricing
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List Pricing
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Lead Times
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Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.