3.3V 5A Buck Converter with 2-Stage LC Filter Reference Design


Design files


PMP10900 is designed to provide a 3.3V/5A output from 5V input. A two-stage LC filter is used to reach output ripple voltage <1mV.

  • Sub-1mV output ripple with two-stage LC
  • 750kHz switching frequency for small solution size
  • Simple compensation using current-mode control
  • The two-stage buck converter solution is built and fully tested. Schematic, BOM and test report are available
Output voltage options PMP10900.1
Vin (Min) (V) 4.5
Vin (Max) (V) 5.5
Vout (Nom) (V) 3.3
Iout (Max) (A) 5
Output Power (W) 16.5
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Synchronous
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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.

TIDU778.PDF (1030 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

TIDC908.ZIP (289 K)

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)

TPS546782.95V to 6V Input, 6A Synchronous Step-Down SWIFT™ Converter with Hiccup Current Limit

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
More literature Power Tips: Designing a two-stage LC filter Sep. 01, 2015
Test report PMP10900 Test Results Feb. 12, 2015

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