Backup Power Reference Design for Smart Meters and Data Concentrators with GPRS


Design files


The reference design describes a power management solution for data concentrators and smart meters that require both super capacitor and battery as backup power. The designed circuit implements uninterrupted power supply to drive GPRS module and other system loads by switching among the power grid, the super capacitor and the battery in setting sequence. The reference design also includes a simple, cost-effective linear charger circuit for the super capacitor and the battery.

  • Capability to drive the GPRS Module
  • Both super capacitor and battery for backup power
  • Power sequence implementation for the power grid and backup power
  • Super capacitor 1-V to 2.65-V operational voltage
  • Linear charger circuits for the super capacitor and battery
Output voltage options PMP9802-1
Vin (Min) (V) 5
Vin (Max) (V) 12
Vout (Nom) (V) 4
Iout (Max) (A) 2
Output Power (W) 8
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Boost- Synchronous^Buck- Synchronous

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.


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


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


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.

Boost converters (integrated switch)

TPS6108912.6-V, 7-A Fully-Integrated Synchronous Boost Converters in 2.0-mm x 2.5-mm VQFN Package

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TLV620842A High Efficient Step Down Converter in 2x2mm SON Package

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TLV621303-17V 3A Step-Down Converter in 3x3 QFN Package

Data sheet document-pdfAcrobat PDF open-in-new HTML
Shunt voltage references

ATL4312.5-V low-IQ adjustable precision shunt regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Test report Backup Power Reference Design With Super Capacitor and Battery for Data Concentr Dec. 05, 2016

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