High-Efficiency Backup Power Supply Reference Design


Design files


This reference design describes a backup power circuit which addresses instantaneous protection against power interruptions by using a buck-boost converter and a backup capacitor. The implementation is based on a completely integrated TPS63060 buck-boost converter circuit enabling a small total solution size. This configuration has been tested with a full test report and operation explanation.

  • Wide useable backup-capacitor voltage range (2.5-12V) results in smaller backup capacitance and solution size
  • No glitches at the transition from main power to backup power operation
  • Backup-capacitor type and size are selectable to meet backup power needs
  • Up to 10 Watt output power
  • Small and highly efficient single converter solution
  • Support of pulsed loads connected to a weak supply
Output voltage options PMP9761.1
Vin (Min) (V) 4.75
Vin (Max) (V) 5.25
Vout (Nom) (V) 5
Iout (Max) (A) 2
Output Power (W) 10
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck Boost- Integrated Switch
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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.

TIDRC98.PDF (670 K)

Detailed schematic diagram for design layout and components

TIDRC99.PDF (29 K)

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

TIDC830.ZIP (172 K)

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


PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Buck-boost, inverting & split-rail converters (integrated switch)

TPS630602.5V to 12V input voltage, 93% Efficient, 2.25A Switch Current Limit, Buck-Boost Converter

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Technical article Providing an orderly shutdown of PLCs PDF | HTML May 14, 2015
Application note High-Efficiency Backup Power Supply Dec. 11, 2014

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