EMI-optimized buck reference design


Design files


This reference design consists of three separable boards optimized for low EMI.

The three boards are labeled

  • PMP30930 Part A (using LM63635-Q1, PW package)
  • PMP30930 Part B (using LM63635-Q1, DR package)
  • PMP30930 Part C (Using LM61460-Q1)

  • EMI- and safety-optimized layout using two ceramic input capacitors in series
  • Part C was tested with 400-kHz and 2.1-MHz switching frequency
Output voltage options PMP30930.1 PMP30930.2 PMP30930.3
Vin (Min) (V) 7.5 7.5 6
Vin (Max) (V) 18 18 16
Vout (Nom) (V) 6.1 6.1 5
Iout (Max) (A) 2.2 2.2 4
Output Power (W) 13.42 13.42 20
Isolated/Non-Isolated Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC DC
Topology Buck- Synchronous Buck- Synchronous 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.

TIDT243.PDF (1808 K)

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

TIDM965.PDF (283 K)

Detailed schematic diagram for design layout and components

TIDM966.PDF (112 K)

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

TIDM967.PDF (156 K)

Detailed overview of design layout for component placement

TIDM969.ZIP (1981 K)

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

TIDCG30.ZIP (142 K)

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

TIDM968.PDF (618 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck converters (integrated switch)

LM61460-Q1Automotive 3-V to 36-V, 6-A, low-noise synchronous step-down converter

Data sheet: PDF | HTML
Buck converters (integrated switch)

LM63635-Q13.5-V to 32-V, 3.25-A step-down voltage converter with spread spectrum

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report Reference Design With EMI-Optimized Buck Solutions PDF | HTML Dec. 14, 2021

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