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

LTM8047 Typical Application
LTM8047 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 footprint compatible with Mentor Graphics PADS® v9.5 or later, and Cadence ORCAD® v16.5 or later.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
Links
LTM8047EY#PBF 11.25mm x 9mm x 4.92mm BGA BGA E 05-08-1869 RoHS
LTM8047IY 11.25mm x 9mm x 4.92mm BGA BGA I 05-08-1869 RoHS
LTM8047IY#PBF 11.25mm x 9mm x 4.92mm BGA BGA I 05-08-1869 RoHS
LTM8047MPY 11.25mm x 9mm x 4.92mm BGA BGA MP 05-08-1869 RoHS
LTM8047MPY#PBF 11.25mm x 9mm x 4.92mm BGA BGA MP 05-08-1869 RoHS


LTM8047 Package Drawing

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
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

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
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Click here to view our complete list of demo boards

Applications

  • Industrial Sensors
  • Industrial Switches
  • Ground Loop Mitigation

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Design Tools

LTspiceIV

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. Click here to download LTspice IV

To launch a ready to run LTspice demonstration circuit for this part:

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Models for the following parts are available in LTspice IV:
LTM8047
LTM8047A

Technical Support