LTM4627 - 15A DC/DC μModule (Power Module) Regulator
Features
- Complete 15A Switch Mode Power Supply
- Wide Input Voltage Range: 4.5V to 20V
- 0.6V to 5V Output Range
- ±1.5% Total DC Output Error
- Differential Remote Sense Amplifier for Precision Regulation
- Current Mode Control/ Fast Transient Response
- Frequency Synchronization
- Parallel Current Sharing (Up to 60A)
- Selectable Pulse-Skipping or Burst Mode® Operation
- Soft-Start/Voltage Tracking
- Up to 93% Efficiency (12VIN, 3.3VOUT)
- Overcurrent Foldback Protection
- Output Overvoltage Protection
- Small Surface Mount Footprint, Low Profile
15mm × 15mm × 4.32mm LGA and
15mm × 15mm × 4.92mm BGA Packages
Typical Application
Description
The LTM®4627 is a complete 15A output high efficiency switch mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductor and compensation components. Operating over an input voltage range from 4.5V to 20V, the LTM4627 supports an output voltage range of 0.6V to 5V, set by a single external resistor. Only a few input and output capacitors are needed.
Current mode operation allows precision current sharing of up to four LTM4627 regulators to obtain 60A output. 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/current sharing operation, Burst Mode operation and output voltage tracking for supply rail sequencing.
The LTM4627 is offered in thermally enhanced 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm BGA packages. The LTM4627 is available with SnPb (BGA) or RoHS compliant terminal finish.
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 |
|---|---|---|---|---|---|
| LTM4627EV#PBF | 15mm × 15mm × 4.32mm LGA | LGA | E | 05-08-1777 | Yes |
| LTM4627EY#PBF | 15mm x 15mm x 4.92mm BGA | BGA | E | 05-08-1897 | Yes |
| LTM4627IV#PBF | 15mm × 15mm × 4.32mm LGA | LGA | I | 05-08-1777 | Yes |
| LTM4627IY#PBF | 15mm x 15mm x 4.92mm BGA | BGA | I | 05-08-1897 | Yes |
| LTM4627MPY | 15mm x 15mm x 4.92mm BGA | BGA | MP | 05-08-1897 | No |
| LTM4627MPY#PBF | 15mm x 15mm x 4.92mm BGA | BGA | MP | 05-08-1897 | 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 | |
|---|---|---|---|---|---|---|
| LTM4627EV#PBF | 15mm × 15mm × 4.32mm LGA | E | $25.70 | $17.99 | Yes | |
| LTM4627EY#PBF | 15mm x 15mm x 4.92mm BGA | E | $27.36 | $19.15 | Yes | |
| LTM4627IV#PBF | 15mm × 15mm × 4.32mm LGA | I | $28.26 | $19.78 | Yes | |
| LTM4627IY#PBF | 15mm x 15mm x 4.92mm BGA | I | $30.09 | $21.06 | Yes | |
| LTM4627MPY | 15mm x 15mm x 4.92mm BGA | MP | $69.35 | $48.55 | No | |
| LTM4627MPY#PBF | 15mm x 15mm x 4.92mm BGA | MP | $54.16 | $37.91 | 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 |
|---|---|---|---|
| DC1668B-A | LTM4627EV Demo Board | Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 30A | $75.00 | |
| DC1668B-C | LTM4627EV Demo Board | LTM4627(x4), Paralleled, Polyphase, 4.5V ≤ VIN ≤ 20V, VOUT = 0.6V to 3.3V @ 50A | $95.00 | |
| DC1669A | LTM4627EV Demo Board | 20V, 15A Step-Down uModule Regulator | $65.00 | |
| Buy Now | |||
Applications
- Telecom Servers and Networking Equipment
- ATCA and Storage Cards
- Industrial Equipment
- Medical Systems
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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
- 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:
LTM4627
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
- 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:
LTM4627
LTM4627 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.
