24Vin, +/-5V, 1W Isolated SIP DC/DC module - Reference Design


Design files


PMP4394 is a 24Vin, +/-5V, 1W reference design which is implemented in the standard industrial SIP pinout.  It includes a constant on-time synchronous Fly-Buck controller LM25018.  The solution has high efficiency, good line, load regulation with 1500V DC isolation.  The power module has been designed with minimized component numbers for cost sensitive applications.  PMP4394, PMP4401, and PMP4412-PM4415 have the same pinout and can be replaced by each other without modification.  The 24V input capability and isolated outputs make the series ideal for industrial applications.

  • Fly-Buck topology with 1500Vdc isolation
  • High efficiency
  • Good line and load regulation
  • Low cost solution with minimized component count
  • Industrial standard pinout
  • Size: 19.8mm x 9mm x 5.8mm

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU554.PDF (196 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

SNVU431.PDF (499 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

SNVR448.PDF (25 K)

Detailed schematic diagram for design layout and components

SNVR449.PDF (115 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC639.ZIP (145 K)

Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

Isolated DC/DC converters & modules

LM250187.5-48V Wide Vin, 300mA Constant On-Time Synchronous Buck Regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
Test report SIP Module for P2P Replacement Sep. 23, 2014
Test report PMP4394 Test Results Apr. 18, 2014

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