TIDA-00349

Uniquely Efficient Isolated DC/DC Converter for Ultra-Low Power and Low Power Apps Reference Design

TIDA-00349

Design files

Overview

This reference design is an isolated DC/DC converter turn-key design that delives high efficiency up to 85% from ultra-low power up to 60 mW. Open-loop control removes the need for opto-couplers, while a primary side half-bridge topology operating at 60 kHz 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 reference design.

Features
  • 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 10-mA 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
Output voltage options TIDA-00349.1
Vin (Min) (V) 3
Vin (Max) (V) 5.2
Vout (Nom) (V) 5
Iout (Max) (A) .01
Output Power (W) .05
Isolated/Non-Isolated Isolated
Input Type DC
Topology Half Bridge- Hard Switched
??image.gallery.download_en_US?? View video with transcript Video

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.

TIDU813B.PDF (6880 K)

Reference design overview and verified performance test data

TIDRD94.PDF (657 K)

Detailed schematic diagram for design layout and components

TIDRD95.PDF (80 K)

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

TIDRD96.PDF (115 K)

Detailed overview of design layout for component placement

TIDRD98.ZIP (1097 K)

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

TIDC950.ZIP (276 K)

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

TIDRD97.PDF (490 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Charge pumps (inductorless)

TPS6040260mA Charge Pump Voltage Inverter with Fixed 50kHz Operation

Data sheet: PDF | HTML

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 2
Type Title Date
* Design guide Uniquely Efficient Isolated DC/DC Converter for Ultra-Low and Low Power Apps (Rev. B) Dec. 20, 2016
Technical article The secrets of energy harvesting: The sloth and the bear PDF | HTML Sep. 29, 2015

Related design resources

Reference designs

REFERENCE DESIGN
TIDA-00167 Isolated Ultra-Low Power Design for 4 to 20 mA Loop Powered Transmitters TIDA-00189 Isolated Loop Powered Thermocouple Transmitter Reference Design TIDA-00245 Data Isolation for Loop Powered Applications Reference Design TIDA-00246 Generic Energy Harvesting Adapter Module for Thermoelectric Generators (TEG) Reference Design TIDA-00459 Highly Efficient Power & Data Transmission for Isolated Low Power Applications Reference Design

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by 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, see TI support. ​​​​​​​​

Videos