µModule Solutions µModule Regulators Isolated µModule Converters
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LTM8057 - 3.1VIN to 31VIN Isolated μModule (Power Module) DC/DC Converter

Features

  • 2kV AC Isolated μModule Converter (Tested at 3kVDC)
  • UL60950 Recognized File 464570
  • Wide Input Voltage Range: 3.1V to 31V
  • Up to 440mA Output Current (VIN = 24V, VOUT1 = 2.5V) Output Adjustable from 2.5V to 12V
  • Current Mode Control
  • Programmable Soft-Start
  • User Configurable Undervoltage Lockout
  • Low Profile (9mm × 11.25mm × 4.92mm) BGA Package

Typical Application

LTM8057 Typical Application
LTM8057 Typical Application

Description

The LTM®8057 is a 2kV AC isolated flyback μModule® (power module) DC/DC converter. 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 31V, the LTM8057 supports an output voltage range of 2.5V to 12V, set by a single resistor. Only output and input capacitors are needed to finish the design. Other components may be used to control the soft-start control and biasing.

The LTM8057 is packaged in a thermally enhanced, compact (9mm × 11.25mm × 4.92mm) overmolded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8057 is available with SnPb 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
LTM8057EY#PBF 11.25mm x 9mm x 4.92mm BGA BGA E 05-08-1925 Yes
LTM8057IY 11.25mm x 9mm x 4.92mm BGA BGA I 05-08-1925 No
LTM8057IY#PBF 11.25mm x 9mm x 4.92mm BGA BGA I 05-08-1925 Yes
LTM8057MPY 11.25mm x 9mm x 4.92mm BGA BGA MP 05-08-1925 No
LTM8057MPY#PBF 11.25mm x 9mm x 4.92mm BGA BGA MP 05-08-1925 Yes


LTM8057 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
LTM8057EY#PBF 11.25mm x 9mm x 4.92mm BGA E $15.57 $10.90 Yes
LTM8057IY 11.25mm x 9mm x 4.92mm BGA I $21.47 $15.03 No
LTM8057IY#PBF 11.25mm x 9mm x 4.92mm BGA I $17.13 $11.99 Yes
LTM8057MPY 11.25mm x 9mm x 4.92mm BGA MP $34.71 $24.30 No
LTM8057MPY#PBF 11.25mm x 9mm x 4.92mm BGA MP $30.37 $21.26 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
DC1987A LTM8057 Demo Board | 2kVAC Isolated Flyback µModule Converter, 4.5V ≤ VIN ≤ 29V, 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
  • Test and Measurement Equipment

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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:
LTM8057

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