LTM8047 - 3.1VIN to 32VIN Isolated μModule (Power Module) DC/DC Converter
Features
- Complete Switch Mode Power Supply
- 725VDC Isolation
- Wide Input Voltage Range: 3.1V to 32V
- Up to 440mA Output Current (VOUT = 2.5V)
- 2.5V to 12V Output Voltage
- Current Mode Control
- Programmable Soft-Start
- User Configurable Undervoltage Lockout
- SnPb or RoHS Compliant Finish
- Low Profile (11.25mm × 9mm × 4.92mm) Surface Mount BGA Package
Typical Application
Description
The LTM®8047 is an isolated flyback μModule DC/DC converter. The LTM8047 has an isolation rating of 725VDC. For a similar product with LDO post regulator, see the LTM8048. Included in the package are the switching controller, power switches, transformer, and all support components. Operating over an input voltage range of 3.1V to 32V, the LTM8047 supports an output voltage range of 2.5V to 12V, set by a single resistor. Only output, input, and bypass capacitors are needed to finish the design. Other components may be used to control the soft-start control and biasing.
The LTM8047 is packaged in a thermally enhanced, compact (11.25mm × 9mm × 4.92mm) over-molded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8047 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 |
|---|---|---|---|---|---|
| LTM8047EY#PBF | 11.25mm x 9mm x 4.92mm BGA | BGA | E | 05-08-1869 | Yes |
| LTM8047IY | 11.25mm x 9mm x 4.92mm BGA | BGA | I | 05-08-1869 | No |
| LTM8047IY#PBF | 11.25mm x 9mm x 4.92mm BGA | BGA | I | 05-08-1869 | Yes |
| LTM8047MPY | 11.25mm x 9mm x 4.92mm BGA | BGA | MP | 05-08-1869 | No |
| LTM8047MPY#PBF | 11.25mm x 9mm x 4.92mm BGA | BGA | MP | 05-08-1869 | 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 | |
|---|---|---|---|---|---|---|
| LTM8047EY#PBF | 11.25mm x 9mm x 4.92mm BGA | E | $11.79 | $8.25 | Yes | |
| LTM8047IY | 11.25mm x 9mm x 4.92mm BGA | I | $17.92 | $12.68 | No | |
| LTM8047IY#PBF | 11.25mm x 9mm x 4.92mm BGA | I | $12.97 | $9.08 | Yes | |
| LTM8047MPY | 11.25mm x 9mm x 4.92mm BGA | MP | $30.15 | $21.11 | No | |
| LTM8047MPY#PBF | 11.25mm x 9mm x 4.92mm BGA | MP | $25.02 | $17.51 | 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 |
|---|---|---|---|
| DC1693A | LTM8047 Demo Board | 725VDC Isolated uModule DC/DC Converter; 4.5V ≤ VIN ≤ 30V, VOUT = 5V @ Up to 350mA | $65.00 | |
| Buy Now | |||
Applications
- Industrial Sensors
- Industrial Switches
- Ground Loop Mitigation
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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:
LTM8047
LTM8047A
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.
