Accurate Output Current Limit Circuit Reference Design for the TPS61088 Boost Converter


Design files


This reference design delivers an accurate output current limit solution for the TPS61088 boost converter. This feature is realized by an output current sense resistor and a low cost operational amplifier. When the output current is higher than the current limit point, the output of the operational amplifier will be higher than the TPS61088’s 1.204V reference voltage. So the output voltage drops. If the output current continuously increases, the output voltage will be further decreased. Thus the maximum output power will always be limited below a certain level.

  • 2.7V to 4.2V input voltage range
  • 5V/3A, 9V/2A and 12V/1.5A output capability
  • Accurate output current limit point
  • Low cost and small solution size
  • Ideal for power bank and other maximum output power limited Boost Converter applications
Output voltage options PMP9806
Vin (Min) (V) 3
Vin (Max) (V) 4.2
Vout (Nom) (V) 9
Iout (Max) (A) 2
Output Power (W) 18
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- Synchronous
?? 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.

TIDUCR9.PDF (1166 K)

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


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement


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


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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

TPS6108810-A Fully-Integrated Synchronous Boost Converter

Data sheet: PDF | HTML

Technical documentation

= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Test report Accurate Output Current Limit Circuit Reference Design for TPS61088 Converter Apr. 14, 2017

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. ​​​​​​​​