1.44-kW, six-phase interleaved boost converter reference design


Design files


This reference design showcases an interleaved boost converter controlled by LM5122-Q1, operating from a 9.0-V to 16.0-V input voltage range, generating an output voltage of 24.0 V with a maximum load current of 60.0 A (10.0 A per phase).

  • High converter efficiency for minimal components temperature rise
  • Can be operated with the higher output power if a higher component temperature rises is acceptable
  • Low output voltage ripple (smaller than 1% peak-to-peak) for audio applications
  • Low input voltage ripple leads to better EMC
  • Modular design which enables easy modification for higher and lower output power by removing or adding phases
Output voltage options PMP31073.1
Vin (Min) (V) 9
Vin (Max) (V) 16
Vout (Nom) (V) 24
Iout (Max) (A) 60
Output Power (W) 1440
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- Multiphase
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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.

TIDT252.PDF (890 K)

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

TIDM960.PDF (806 K)

Detailed schematic diagram for design layout and components

TIDM961.PDF (94 K)

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

TIDM962.PDF (542 K)

Detailed overview of design layout for component placement

TIDM964.ZIP (3072 K)

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

TIDCG29.ZIP (370 K)

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

TIDM963.PDF (3115 K)

PCB layer plot file used for generating PCB design layout


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Technical documentation

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Type Title Date
* Test report 1.44-kW, Six-Phase Interleaved Boost Converter Reference Design PDF | HTML Dec. 07, 2021

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