High Power Density 12Vin, 11.8W Buck Converter with Inductor On Top of the IC


Design files


The TPS53515 Inductor-On-Top Step-Down Buck Converter reference design enables reduction of X-Y area while enabling >87% efficiency with 2.6W of power loss @12A load and 12mV of output voltage ripple with only 10x22uF ceramic output caps. This power reference design supports a 12V input and a 1.2V output at 12A and switches at 1MHz.


• >87% Efficiency at 12VIN, 1.2Vout, 1MHz

•  2.6W power loss at 11.8W Output Power

•  12mV Output Voltage Ripple at 5A and 1MHz Fsw

• 16mV Output Voltage Overshoot in response to 5A to 10A load step, 2.5A/us

• 17mV Output Voltage Undershoot in response to 10A to 5A load release, 2.5A/us

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.

TIDUA19.PDF (1704 K)

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

TIDRF20.PDF (388 K)

Detailed schematic diagram for design layout and components

TIDRF21.PDF (95 K)

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


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


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

TPS535151.5-V to 18-V, 12-A synchronous SWIFT™ buck converter

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

Technical documentation

No results found. Please clear your search and try again.
View all 1
Type Title Date
Test report TIDA-00595 Test Results Jun. 05, 2015

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. ​​​​​​​​