LTM4620 - Dual 13A or Single 26A DC/DC µModule 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 Sensing Diode Output
- Output Overvoltage Protection
- Low Profile (15mm x 15mm x 4.41mm) LGA Package
Typical Application
Description
Description The LTM4620 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 x 15mm x 4.41mm LGA package with integrated top-side heat sink. The LTM4620 is RoHS compliant with a PB-free finish.
Packaging
For complete and up to date package information and drawings, please refer to our packaging page
15mm × 15mm × 4.41mm LGA
Order Info
- Part numbers ending in PBF are lead free. Please contact LTC marketing for information on lead based finish parts.
- 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 | Pins | Temp | Price (1-99) | Price (1k)* | RoHS Data |
|---|---|---|---|---|---|---|
| LTM4620AEV#PBF | 144 | E | $44.69 | $31.28 | View | |
| LTM4620AIV#PBF | 144 | I | $49.14 | $34.40 | View | |
| LTM4620EV#PBF | 144 | E | $42.82 | $29.99 | View | |
| LTM4620IV#PBF | 144 | I | $47.11 | $32.98 | View | |
| 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 | 50A Polyphase Step-Down Supply (Dual LTM4620) | $85.00 | |
| DC1780A-B | LTM4620EV Demo Board | 75A Polyphase Step-Down Supply (Triple LTM4620) | $105.00 | |
| DC1780A-C | LTM4620EV Demo Board | 100A Polyphase Step-Down Supply (Quad LTM4620) | $125.00 | |
| Buy Now | |||
Applications
- Telecom and Networking Equipment
- Storage and ATCA Cards
- Industrial Equipment
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Simulate
LTspice IV is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. To download LTspice IV and other FREE simulation tools, please visit our Design Simulation page.
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 IV
- Step 2: Once LTspice is installed, click on the link(s) below to launch the simulation
- LTM4620 Demo Circuit - High Efficiency Dual 13A Step-Down µModule Regulator (4.5-16V to 1.5 V @ 13A & 1.2V @ 13A)
- LTM4620 Demo Circuit - High Efficiency 4-Phase 50A Step-Down µModule Regulator (4.5-16V to 1V @ 50A)
- LTM4620 Demo Circuit - High Efficiency 6-Phase 75A Step-Down µModule Regulator (4.5-16V to 1V@75A)
- LTM4620 Demo Circuit - High Efficiency 8-Phase 100A Step-Down µModule Regulator (4.5-16V to 1V @ 100A)
- Step 3: If LTspice IV 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.
Related models available in LTspice IV
LTM4620
LTM4620A
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.
