LTM8048 - 3.1VIN to 32VIN Isolated μModule DC/DC Converter with LDO Post Regulator

Features

  • Complete Switch Mode Power Supply
  • 725VDC Isolation
  • Wide Input Voltage Range: 3.1V to 32V
  • VOUT1 Output:
    Up to 440mA (VOUT1 = 2.5V, 24VIN)
    2.5V to 13V Output Range
  • VOUT2 Low Noise Linear Post Regulator:
    Up to 300mA
    1.2V to 12V Output Range
  • 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

LTM8048 Typical Application
LTM8048 Typical Application

Description

The LTM®8048 is an isolated flyback μModule DC/DC converter with LDO post regulator. The LTM8048 has an isolation rating of 725VDC. 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 LTM8048 supports an output voltage range of 2.5V to 13V, set by a single resistor. There is also a linear post regulator whose output voltage is adjustable from 1.2V to 12V as 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 LTM8048 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 LTM8048 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

9mm x 11.25mm x 4.92mm BGA

LTM8048 Package Drawing

Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LTM8048EY#PBF BGA 45 E $12.50 $8.75 View
LTM8048IY BGA 45 I $18.89 $13.23 View
LTM8048IY#PBF BGA 45 I $13.76 $9.63 View
LTM8048MPY BGA 45 MP $34.37 $24.07 View
LTM8048MPY#PBF BGA 45 MP $25.59 $17.91 View
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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
DC1560A LTM8048 Demo Board | 725VDC Isolated uModule, 4.5V ≤ VIN ≤ 30V, VOUT = 5V @ 110mA to 370mA, LDO Post-Regulated Flyback . $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

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Models for the following parts are available in LTspice IV:
LTM8048
LTM8048A

Technical Support