Small Footprint Isolated DC/DC Converter for Analog Input Module Reference Design


Design files


Isolated power supply is important for analog components like analog-to-digital converters (ADCs) and operational amplifiers (op amps) in the field of factory automation and control. It prevents ground loops, reduces noise and is essential for protection from surge. This reference design shows a low-profile small form-factor isolated power design for analog modules where space is a primary concern.

  • Very low profile with less than 1.8-mm component height
  • Isolated output with three voltages
  • ±15 V for analog supply
  • +5V  for ADC digital supply
  • Very small real estate of 12.7 mm x 40.8 mm

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.


Reference design overview and verified performance test data

TIDRM51.PDF (100 K)

Detailed schematic diagram for design layout and components

TIDRM54.PDF (433 K)

Detailed schematic diagram for design layout and components

TIDRM52.PDF (74 K)

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

TIDRM50.PDF (250 K)

Detailed overview of design layout for component placement

TIDRM49.PDF (250 K)

Files used for 3D models or 2D drawings of IC components

TIDCC96.ZIP (504 K)

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

TIDRM53.PDF (1433 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Isolated DC/DC converters & modules

LM5160LM5160 wide input 65V, 2A synchronous buck/Fly-Buck™ converter

Data sheet document-pdfAcrobat PDF open-in-new HTML
LCD & OLED display power & drivers

TPS65130Split-Rail Converter with Dual, Positive and Negative Outputs (300mA typ)

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

Technical documentation

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Type Title Date
* Design guide Small Footprint Isolated Analog DC/DC Converter Reference Design (Rev. A) Jul. 06, 2016
Technical article Where shrinking makes sense: improving isolated, split-rail power designs in industrial applications Aug. 22, 2016

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