High-Efficiency Adjustable Output Synchronous Boost Converter Reference Design


Design files


PMP10538 is a Single-Phase Synchronous Boost Converter using the LM5122 controller IC. The design accepts an input voltage of 18Vin to 20Vin and provides an output of 30Vout to 54Vout, capable of supplying 1.7A of continuous current to the load or 0A to 3.4A Max. The output voltage can be adjusted between 30Vout and 54Vout by driving the Vadj. input of the Op-Amp circuit between 0V and 3V.


  • High efficiency design
  • Adjustable output voltage
  • Cycle-by-Cycle Current limit with programmable hiccup mode overload protection
  • Precision voltage reference accuracy of ±1%
  • Synchronizable to external clock

Output voltage options PMP10538.1
Vin (Min) (V) 18
Vin (Max) (V) 20
Vout (Nom) (V) 54
Iout (Max) (A) 1.7
Output Power (W) 91.8
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- 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.

TIDUA25.PDF (1494 K)

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

TIDRF33.PDF (424 K)

Detailed schematic diagram for design layout and components

TIDRF34.PDF (137 K)

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

TIDRF35.PDF (145 K)

Detailed overview of design layout for component placement

TIDRF37.ZIP (721 K)

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


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

TIDRF36.PDF (1305 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Boost controllers (external switch)

LM51223-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capability

Data sheet: PDF | HTML
General-purpose op amps

LM321Single, 30-V, 1-MHz operational amplifier

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP10538 Test Results Jun. 09, 2015

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