Uniquely Efficient Isolated DC/DC Converter for Ultra-Low Power and Low Power Apps Reference Design
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical documentation

Support & Training

Order Now

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document


The TIDA-00349 TI Design is an isolated DC/DC converter turn-key solution, delivering exceptionally high efficiencies up to 85% from ultra-low power up to 60mW. Open-loop control removes the need for opto-couplers, while a primary side half-bridge topology operating at 60kHz and secondary side Schottky rectification provides low switching losses, enabling highly efficient power conversion. The single side populated PCB board provides a convenient tool for evaluation and on-the-fly optimization of the design, with adequate headers, jumpers and test points for covering a wide variety of applications.

Watch a TIDA-00349 Overview video on the isolated DC/DC converter turn-key solution NOW

  • Isolated DC/DC converter for 3-V to 5.2-V input with up to 60-mW output power
  • Highly efficient design for up to 10mA output current with up to 86% efficiency
  • Open-loop, optocoupler-less design
  • Synchronization output and fixed switching frequency enable use in noise sensitive applications
  • Flexible configurable board enables easy evaluation and modification
  • Design guide provides detailed description and performance test data

See the Important Notice and Disclaimer covering reference designs and other TI resources.


Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Test Data

Get results faster with test and simulation data that's been verified.

Download Test Data

Design Files

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

Download Design Files

(Output Voltage 1)
Vin (Min) (V)3
Vin (Max) (V)5.2
Vout (Nom) (V)5
Iout (Max) (A).01
Output Power (W).05
Input TypeDC
TopologyHalf Bridge- Hard Switched

TI Devices (1)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS60402  60mA Charge Pump Voltage Inverter with Fixed 50kHz Operation  DC/DC switching regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS60402 Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.

Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 6880 20 Dec 2016
Design files (6)
Title Type Size (KB) Date
ZIP 276 09 Mar 2015
ZIP 1097 09 Mar 2015
PDF 490 09 Mar 2015
PDF 115 09 Mar 2015
PDF 80 09 Mar 2015
PDF 657 09 Mar 2015
Related Tools & Software

Reference Designs (5)

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles