LTM4620 - Dual 13A or Single 26A DC/DC µModule (Power Module) Regulator
Features
- Complete Standalone Dual Output Power Supply
- Dual 13A or Single 26A Output
- Wide Input Voltage Range: 4.5V to 16V
- Output Voltage Range: 0.6V to 2.5V
- ±1.5% Maximum Total DC Output Error
- Multiphase Current Sharing with Multiple LTM4620s Up to 100A
- Differential Remote Sense Amplifier
- Current Mode Control/Fast Transient Response
- Adjustable Switching Frequency
- Overcurrent Foldback Protection
- Frequency Synchronization
- Internal Temperature Monitor
- Output Overvoltage Protection
- SnPb or RoHS Compliant Finish
- Thermally Enhanced (15mm × 15mm × 4.41mm) LGA Package and (15mm × 15mm × 5.01mm) BGA Package
Typical Application
Description
The LTM®4620 is a complete dual 13A output switching mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductors, and all supporting components. Operating from an input voltage range of 4.5V to 16V, the LTM4620 supports two outputs each with an output voltage range of 0.6V to 2.5V, set by a single external resistor. Its high efficiency design delivers up to 13A continuous current for each output. Only a few input and output capacitors are needed.
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 power module is offered in a proprietary space saving and thermally enhanced 15mm × 15mm × 4.41mm LGA package and 15mm × 15mm × 5.01mm BGA package, with integrated top-side heat sink. The LTM4620 is available with SnPb (BGA) or RoHS compliant terminal finish.
| Vout Range | Efficiency 12Vin, 1.2Vout | |
| LTM4620 | 0.6V-2.5V | 83% |
| LTM4620A | 0.6V-5.3V | 86% |
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTM4620EV#PBF | 15mm × 15mm × 4.41mm LGA | LGA | E | 05-08-1844 | Yes |
| LTM4620EY#PBF | 15mm x 15mm x 5.01mm BGA | BGA | E | 05-08-1880 | Yes |
| LTM4620IV#PBF | 15mm × 15mm × 4.41mm LGA | LGA | I | 05-08-1844 | Yes |
| LTM4620IY#PBF | 15mm x 15mm x 5.01mm BGA | BGA | I | 05-08-1880 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTM4620EV#PBF | 15mm × 15mm × 4.41mm LGA | E | $42.82 | $29.99 | Yes | |
| LTM4620EY#PBF | 15mm x 15mm x 5.01mm BGA | E | $44.27 | $30.99 | Yes | |
| LTM4620IV#PBF | 15mm × 15mm × 4.41mm LGA | I | $47.11 | $32.98 | Yes | |
| LTM4620IY#PBF | 15mm x 15mm x 5.01mm BGA | I | $48.54 | $33.98 | Yes | |
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC1498A | LTM4620EV Demo Board | Dual 16V, 13A Step Down uModule Regulator | $65.00 | |
| DC1780A-A | LTM4620EV Demo Board | LTM4620 (x2) PolyPhase uModule Buck, 4.5V ≤ VIN ≤ 16V, Vout=1.0V/1.2V/1.5V/1.8V/2.5V @ 50A | $85.00 | |
| DC1780A-B | LTM4620EV Demo Board | LTM4620 (x3) PolyPhase uModule Buck, 4.5V ≤ VIN ≤ 16V, Vout=1.0V/1.2V/1.5V/1.8V/2.5V @ 75A | $105.00 | |
| DC1780A-C | LTM4620EV Demo Board | LTM4620 (x4) PolyPhase uModule Buck, 4.5V ≤ VIN ≤ 16V, Vout=1.0V/1.2V/1.5V/1.8V/2.5V @ 100A | $125.00 | |
| Buy Now | |||
Applications
- Telecom and Networking Equipment
- Storage and ATCA Cards
- Industrial Equipment
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Product Notifications
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Design Tools
LTspice
LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice
To launch a ready to run LTspice demonstration circuit for this part:
- Step 1: If you have not installed LTspice on this computer, download and install LTspice
- Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
- LTM4620 Demo Circuit - High Efficiency Dual Buck µModule Regulator (4.5-16V to 1.5 V @ 13A & 1.2V @ 13A)
- LTM4620 Demo Circuit - High Efficiency PolyPhase 50A Step-Down µModule Regulator (4.5-16V to 1V @ 50A)
- LTM4620 Demo Circuit - High Efficiency PolyPhase Step-Down µModule Regulator (4.5-16V to 1V @ 75A)
- LTM4620 Demo Circuit - High Efficiency PolyPhase Step-Down µModule Regulator (4.5-16V to 1V @ 100A)
- Step 3: If LTspice does not automatically open after clicking the link above, 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
To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.
Models for the following parts are available in LTspice:
LTM4620
LTM4620A
LTpowerCAD
The LTpowerCAD design tool is a complete power supply design tool program that can significantly ease the tasks of power supply design. It guides users to a solution, selects power stage components, provides detailed power efficiency, shows quick loop bode plot stability and load transient analysis, and can export a final design to LTspice for simulation. Click here to download LTpowerCAD
To open the project file for this circuit:
- Step 1: If you have not installed LTpowerCAD on this computer, download and install LTpowerCAD
- Step 2: Once LTpowerCAD is installed, click on the link(s) below to open the project file
- LTM4620 Project - Dual Step-Down µModule Regulator (4.5-16V to 1.5V @ 13A & 1.2V @ 13A)
- LTM4620 Project - PolyPhase Step-Down µModule Regulators (4.5-16V to 1.5V @ 50A)
- LTM4620 Project - PolyPhase Step-Down µModule Regulators (4.5-16V to 1.2V @ 75A)
- LTM4620 Project - PolyPhase Step-Down µModule Regulators (4.5-16V to 1.2V @ 100A)
- LTM4620 Project - 2-Phase Step-Down µModule Regulator (4.5-16V to 1.5V @ 26A)
- Step 3: If LTpowerCAD does not automatically open after clicking the link above, you can open the project file by right clicking on the link and selecting "Save Target As." After saving the file to your computer, start LTpowerCAD and open the project file by selecting 'Open Project' from the 'File' menu
Design tools for the following parts are available in LTpowerCAD:
LTM4620
LTM4620 Parallel
LTM4620A
LTM4620A Parallel
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
